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Plural load devices

Subclass of:

315 - Electric lamp and discharge devices: systems

315149000 - WITH RADIANT ENERGY SENSITIVE CONTROL MEANS

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
315153000 Selective energization of the load devices 80
Entries
DocumentTitleDate
20110199005LIGHTING UNIT HAVING LIGHTING STRIPS WITH LIGHT EMITTING ELEMENTS AND A REMOTE LUMINESCENT MATERIAL - The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.08-18-2011
20090195165Lamp driving circuit of power source and charge/discharge device in parallel connection - An application for nightly outdoor lamps, road lamps, advertising lamps and nightly warning lights using daytime and nighttime as the period, wherein during daytime, it is at a preparation status of no power output to drive the lamps, and the AC to DC power is charged to the charge/discharge device, while during nighttime, the lamps are commonly driven by the parallel output of an AC to DC power and the discharged power from the charge/discharge device.08-06-2009
20080315774OPTICAL INTEGRATING CAVITY LIGHTING SYSTEM USING MULTIPLE LED LIGHT SOURCES - A system to provide radiant energy of selectable spectral characteristic (e.g. a selectable color combination) uses an integrating cavity to combine energy of different wavelengths from different sources. The cavity has a diffusely reflective interior surface and an aperture for allowing emission of combined radiant energy. Sources of radiant energy of different wavelengths, typically different-color LEDs, supply radiant energy into the interior of the integrating cavity. In the examples, the points of entry of the energy into the cavity typically are located so that they are not directly visible through the aperture. The cavity effectively integrates the energy of different wavelengths, so that the combined radiant energy emitted through the aperture includes the radiant energy of the various wavelengths. The apparatus also includes a control circuit coupled to the sources for establishing output intensity of radiant energy of each of the sources. Control of the intensity of emission of the sources sets the amount of each wavelength of energy in the combined output and thus determines a spectral characteristic of the radiant energy output through the aperture.12-25-2008
20100117545Solid State Lighting, Driver Circuits, and Related Software - LED lighting fixtures, or luminaires, related components, driver circuit, methods, and software/firmware are described can provide for among other things, ambient environment sensing, thermal self-monitoring, sensor-based power management, communications, and/or programmability. Driver and lighting circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus. Methods of hysteretic power factor correction start-up are also described.05-13-2010
20120176042SYSTEM AND METHOD FOR CONTROLLING THE SPECTRAL CONTENT OF AN OUTPUT OF A LIGHT FIXTURE - Systems and methods for controlling the spectral content of the output of a light fixture. The method of one embodiment includes driving the output of a light fixture to a target color and controlling the spectral content of the output of the light fixture. For example, a desired color is inputted using a color control methodology. A set of light source output intensity values that produce the desired color are identified, and then the light sources are driven to the identified output intensity values. A user is able to control the spectral content of the output of the light fixture by modifying the output intensity value of one or more of the light sources. After modifying the output intensity values, the color control and matching technique is used to identify a new set of output intensity values that maintain the previous target color but incorporate the changes in spectral content.07-12-2012
20130076249ELECTRONIC DEVICE - An electronic device including a body and a light source module is provided. The body has a side on which an unstable display is disposed and another side on which a bi-stable display is disposed. The light source module is arranged inside the body and configured to provide a light source to one or none of the unstable display and the bi-stable display.03-28-2013
20100045192METHOD FOR DRIVING LIGHT SOURCE, LIGHT SOURCE APPARATUS FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE LIGHT SOURCE APPARATUS - A method for driving a light source includes providing a first control voltage at a first level to a memory so that the memory performs a writing operation when an external control signal is received by a control voltage generating circuit, providing a second control voltage at a second level to the memory so that the memory prevents the writing operation when the external control signal is not received by the control voltage generating circuit, comparing a reference signal stored in the memory with a sensing signal based on an amount of light outputted from the light source to generate a driving signal, and providing the driving signal to the light source to compensate the amount of light outputted from the light source.02-25-2010
20100045191DEVICE FOR CONTROLLING LIGHT SOURCES - An illumination system (02-25-2010
20120206050Detector Controlled Illuminating System - An illuminating device coupled with sensors or an image acquisition device and a logical controller allows illumination intensity and spectrum to be varied according to changing user needs. The system provides illumination to areas according to the principles of correct lighting practice for the optimal performance of visual tasks in the most efficient, cost effective manner. Aspects of the invention include: lighting fixtures which adapt to ambient lighting, movement, visual tasks being performed, and environmental and personal conditions affecting illumination requirements at any given instant. Lighting fixtures having spatial distribution of spectrum and intensity, providing both “background” room lighting, and “task” lighting.08-16-2012
20130038222COLOR TEMPERATURE ADJUSTMENT FOR LED LAMPS USING SWITCHES - A light-emitting diode (LED) lamp includes a number of different color LEDs that can be turned on and off in different combinations using an external switch operable by a user. A user or a controller can adjust the color temperature of light output by the lamp. The color temperature change may be a user preference and can compensate for decreased phosphor efficiency over time.02-14-2013
20130082606DEVICE AND METHOD FOR AUTOMATIC CALIBRATION OF ILLUMINATION SYSTEM AND ENERGY SAVING - The present invention provides a system for testing monitoring and calibrating illumination of plurality of lamps, operated by a control node. The system is comprised of: plurality of lamps units each unit including, a lamp, and control node for controlling power consumption wherein the control node comprises at least one of: a wireless, PLC transceiver or twisted pair, at least one mobile measurement device, for performing luminous measurements for each lamp unit and a computing unit for analyzing the luminous measurements results for determining the optimal parameters for operating the lamp according to the predefined luminous requirements for each lamp unit04-04-2013
20130088153METHOD OF CONTROLLING ELECTRICAL DEVICES, PARTICULARLY LIGHTING LAMPS AND CONTROL SYSTEM OF ELECTRICAL DEVICES, PARTICULARLY LIGHTING LAMPS - A system for controlling electrical devices, particularly external lighting lamps, connected to a supply network, the system comprising at least one management and diagnostic centre with communication modules, fed by the supply network, and external lighting lamps, connected to the supply network, wherein the lamps contain controlling modules and communication modules, whilst exchange of data between management and diagnostic centre and individual lamps as well as between lamps themselves takes place in real time, within set communication cycles, wherein said data can be preserved in individual lamps, in an MCU MASTER main controlling unit of the lamp and transmitted to other lamps after closing the communication cycle with said at least one management and diagnostic centre, and wherein changes transmitted from said at least one management and diagnostic centre are carried out by said MCU MASTER main controlling unit of each lamp.04-11-2013
20130088154DISPLAY AND LIGHTING ARRANGEMENT FOR A FITTING ROOM - The invention provides a display and lighting arrangement (04-11-2013
20090322231LAMP-HOLDING DEVICE AND SYSTEM COMPRISING LAMP-HOLDING DEVICES AND WIRELESS CONTROLLER - The invention relates to a lamp-holding device (12-31-2009
20130069540Adaptive modulation and data embedding in light for advanced lighting control - Disclosed is a method for controlling a light output signal emitted by a set of light sources comprising at least one light source, wherein said light output signal includes a modulation signal which carries individual information, such that the method includes recurrently: 03-21-2013
20130069541METHOD FOR CONTROLLING A LIGHTING SYSTEM, AND LIGHTING SYSTEM - The invention relates to a method for controlling a lighting system, said lighting system comprising a plurality of luminaires (03-21-2013
20130069539SYNCHRONOUS LIGHT ADJUSTMENT METHOD AND THE DEVICE FOR PERFORMING THE SAME - A synchronous light adjustment method and the device for performing the same are proposed. Each of plurality of lamps is installed with a light sensor and a control unit. By actuating a single power switch, the control unit will control the illumination of a respective one of the LED lamps independently and automatically based on the environmental illumination detected by a light sensor. Further, by switching the power switch manually to match predetermined operations, the control units will adjust the illuminations and color temperatures of the LED lamps synchronously and gradually. The device is convenient in installation and usage.03-21-2013
20130069538AUTOMATIC AND MANUAL DIMMING METHOD AND APPARATUS THEREOF - The present invention discloses an automatic and manual dimming method and an apparatus thereof, comprising a plurality of LED lamps with a light sensor and a control unit, such that when a power switch is turned on to trigger the control unit to automatically adjust the light emitting brightness of the LED lamp according to the brightness of the light sensed by the light sensor. After one or more times of switching the power switch, the control unit can be used for manually adjusting the light emitting brightness of the LED lamp to improve the convenience of use.03-21-2013
20100264832Improvements in or Relating to Lighting Control Systems - A system for controlling solid state lighting comprises a source (10-21-2010
20080211412REMOTELY CONTROLLED LIGHT FIXTURE SYSTEM - A remotely controlled LED light fixture system is disclosed. The system includes a series of light fixtures featuring LED electrically connected in series to an electrical source. In a preferred embodiment, the series of light fixtures are connected using a quick secure electro/mechanical connection. The system also includes an infrared remote receiver for receiving control signals from a remote control transmitter. The infrared remote receiver is positioned between the electrical source and the series of LED light fixtures, and controls the flow of electricity between the electrical source and the series of LED light fixtures. The remote control transmitter is configured to send a variety of different signals to the infrared remote receiver. In one embodiment the electrical source is an electrical transformer connected to standard house current. In another embodiment, the electrical source is a solar panel.09-04-2008
20090302769Circuit Arrangement and Method for Controlling at Least One Light Source - A circuit arrangement for controlling at least one light source comprises a photodetector (12-10-2009
20120217879Apparatus For LED Lights Which Integrates A Boost Converter Control Module - An apparatus for LED lights which integrates a voltage booster module is provided. The string lights in series-parallel construction, which is originally powered by a high voltage, becomes now powered by a low voltage. Thus, a dry cell or a solar cell can be used as a power supply, which decreases the needs for electricity from the power rail. Accordingly, less carbon dioxide is generated and energy is also saved.08-30-2012
20130057158GPS-BASED STREETLIGHT WIRELESS COMMAND AND CONTROL SYSTEM - A method and apparatus for controlling a streetlight is provided. GPS data is required from a GPS coupled to a process of the streetlight. A geographic location of the streetlight is determined from the received GPS data. A real local time is determined from the GPS data and a sunrise and sunset time associated with the geographic location can then be determined. The on and off state of one or more LED lighting modules of the streetlight can then be controlled upon the determined sunrise and sunset times. 03-07-2013
20120223646MOTION ACTIVATED OFF GRID LED LIGHT - The claimed subject matter provides systems and/or methods that facilitate remotely controlling a wireless lighting module. The wireless lighting module can include a power source such as a battery, a solar cell, and the like as well as an array of light emitting diodes (LEDs). The LEDs can be controlled based upon a received input (e.g., communicated by way of a radio frequency signal, an infrared signal, . . . ). For example, the input can be obtained from a remote control, a sensor, a differing wireless lighting module, an radio frequency identification (RFID) tag, and so forth. The input can be utilized to switch one or more LEDs on or off, change the intensity or color of illumination, modulate illumination, alter the direction of illumination, etc.09-06-2012
20120223645ILLUMINATING DEVICE FOR A WALKING STICK - An illuminating device for a walking stick includes a main body having a through hole defined in a top thereof for adapting to receive a bottom of a walking stick, such that the main body adapts to position on the walking stick. A plurality of light source is mounted on the main body for emitting light. A light shade sleeves on the main body and encloses the light sources. The light shade allows light to pass through. A power supply is mounted in the main body and is electrically connected with the light sources. When the light sources are supplied with electricity provided by the power supply to emit light, light emitted by the light sources is transmitted through the light shade for providing an illuminating effect.09-06-2012
20110012515CALIBRATION CAMERA WITH SPECTRAL DEPTH - An imaging device (01-20-2011
20110012514LED ARRAY HAVING ARRAY-BASED LED DETECTORS - The present invention provides an optical system having an array of light emitting semiconductor devices to performing an operation that have multiple characteristics associated with performing the operation. The array includes at least one detector located within the array to selectively monitor multiple characteristics of the light emitting semiconductor devices and is configured to generate a signal corresponding to the selected characteristic. A controller is configured to control the light emitting semiconductor devices in response to the signal from the at least one detector. At least one of the multiple characteristics may be concentrated at an area of the array and the at least one detector may be located within the array at the area of the array to selectively monitor characteristic that is concentrated at the area of the array.01-20-2011
20090236994ILLUMINATION SYSTEM COMPRISING A PLURALITY OF LIGHT SOURCES - An illumination system (09-24-2009
20100060171Method and Apparatus for Maintaining Constant Color Temperature of a Fluorescent Lamp - A system to allow a fluorescent lamp to be dimmed or otherwise improve color performance of the lamp while maintaining a constant spectral distribution. In one embodiment, the lamp will dim in light output and not shift in color temperature. An LED array is positioned under a fluorescent lamp such that its light injects back into the lamp that part of the color spectrum that diminishes as a fluorescent lamp dims. The LED array is positioned centrally along the underside of the lamp. The light from the LED is never directly visible but shines through the lamp; the lamp acting as a diffuser. The brightness level of the LEDs can be determined as a preset level relative to a predetermined dim setting or can be regulated through an electronic monitoring sensor. The monitoring could evaluate the shift in color spectrum and or intensity and render the appropriate injection of light spectrum to maintain a constant unwavering color temperature.03-11-2010
20130162146ENERGY-SAVING LED LIGHTING DEVICE - An energy-saving LED lighting device includes a power source driving device, a lighting assembly, a human body detection device, and a sound control device. The human body detection device and the sound control device are arranged in the power source driving device. The energy-saving LED lighting device provided by the present invention arranges the human body detection device and the sound control device in the power source driving device so that in installation and use, there is no need to use additional remotely-located switch to control activation and deactivation and control of activation and deactivation of the lighting device can be simply realized through the installation of the energy-saving lighting device. The conditions for installation are lowered and the expense is saved.06-27-2013
20120235579METHODS, APPARATUS AND SYSTEMS FOR PROVIDING OCCUPANCY-BASED VARIABLE LIGHTING - A presence and an absence of an occupant is detected, and an occupancy sensor signal is generated representative of an active state in which the presence of the occupant is detected, and an inactive state in which the absence of the occupant is detected. An ambient light sensor detects the ambient light level and generates an ambient light sensor signal representative of the ambient light level. Dimmable illumination is generated at a first dimming level, based on the ambient light level, corresponding to the active state and a second dimming level corresponding to the inactive state. A transition delay time between an onset of the inactive state and a transition between the first dimming level and the second dimming level may be controlled. The first dimming level, the second dimming level, and/or the transition delay time may be variably set or controlled locally or via a remote device.09-20-2012
20120235578Motion Actuated Fixture Illuminator - A motion detecting device that, upon sensing motion, actuates an eclectic variety of illuminations to a proximal area of a fixture for providing functional and aesthetic benefits. The sensitivity of the motion detecting device is adjustable, and once actuated, powers on at least one light stream and or sound emanation device. Each light stream is positioned to illuminate a specific area on the fixture, or in proximity to the fixture. In various embodiments, the resultant illumination allows a user to better proximate the distance from a toilet seat, the perimeter of a toilet, the quantity and direction of water dispensing from a sink, and other similar uses. The motion detecting device may further include a light sensor to prevent illumination when light is detected, and a timer to turn off the illumination device after it has been activated for a predetermined amount of time.09-20-2012
20120235577ELECTRONIC CONTROL GEAR FOR OPERATING AT LEAST ONE LED AND/OR AT LEAST ONE DISCHARGE LAMP - An electronic control gear for operating at least one of at least one LED and at least one discharge lamp is provided. It may include a first terminal for coupling to a phase of an AC voltage supply; a second terminal for coupling to the neutral conductor of the AC voltage supply; a control input for coupling in a control signal of a control apparatus; a first output for coupling to the LED; a second output for coupling to the discharge lamp; a first driver circuit for the LED; a second driver circuit for the discharge lamp; an evaluation apparatus for evaluating the control signal at the control input, the evaluation apparatus comprising a microcontroller, which activates said driver circuits depending on the control signal, wherein a first capacitance is coupled between the second terminal and the control input.09-20-2012
20120206049DISPLAY DEVICE AND OPERATING METHOD THEREOF - Provided are a display device and an operating method thereof. The display device includes a display panel which includes a plurality of first, second, and third display pixels and a plurality of unit cells. The first, second, and third display pixels include a plurality of organic light emitting materials for displaying first, second, and third colors, respectively. Each of the unit cells includes one light sensing pixel adjacent to the first, second, and third display pixels.08-16-2012
20120056545 CIRCUIT FOR AND A METHOD OF SENSING A PROPERTY OF LIGHT - In a circuit (03-08-2012
20110279041ILLUMINATION APPARATUS AND BRIGHTNESS ADJUSTING METHOD THEREOF - An illumination apparatus includes a power supply, a detection unit, a PWM unit, a constant current circuit and an illumination unit. The detection unit detects the brightness of the ambient light and generates a detecting signal according to the brightness of the ambient light. The PWM unit outputs a pulse voltage according to the detecting signal. The constant current circuit supplies a constant current to the illumination unit. The illumination unit emits light according to the pulse voltage. When the brightness of the ambient light is increased, the magnitude of the detecting signal increases and the duty cycle of the pulse voltage increases. The luminous intensity of the illumination apparatus increases. When the brightness of the ambient light is decreased, the magnitude of the detecting signal decreases and the duty cycle of the pulse voltage decreases. The luminous intensity of the illumination apparatus decreases.11-17-2011
20100060172Hollow Planar Illuminating Apparatus - A light reflection surface member (03-11-2010
20120112640Sustainable Outdoor Lighting System for Use in Environmentally Photo-Sensitive Area - Provided herein are systems and methods for outdoor lighting, which generally include two or more light sources. One light source is a monochromatic light source producing a light with a peak wavelength of about 580 nm or above. A second light source is a polychromatic light source producing a green-tint white light. During a standby operational mode, a control system maintains the first light source illuminated. The control system, which includes an integrated imaging system, illuminates both the first light source and the second light source when the imaging system identifies a target in an illumination area. Methods of preparing and using such outdoor lighting system are also provided.05-10-2012
20110316428SYSTEMS AND METHODS FOR CONTROLLING BRIGHTNESS OF COLD-CATHODE FLUORESCENT LAMPS WITH WIDE DIMMING RANGE AND ADJUSTABLE MINIMUM BRIGHTNESS - System and method for adjusting brightness of one or more cold-cathode fluorescent lamps. The system includes a voltage selector configured to receive a dimming voltage and a first threshold voltage and generate an output voltage. The output voltage is selected from a group consisting of the dimming voltage and the first threshold voltage. Additionally, the system includes an oscillator coupled to a first capacitor and configured to generate a ramp signal with the first capacitor, and a signal generator configured to receive the ramp signal and the output voltage and generate a first signal. The first signal corresponds to a lamp brightness level. Moreover, the system includes a brightness detector configured to receive the first signal and output a second signal. The second signal indicates whether the lamp brightness level is higher than a threshold brightness level.12-29-2011
20110285295ARTIFICIAL SOLAR LIGHT SYSTEM USING A LIGHT EMITTING DIODE - The present invention relates to an artificial solar light system, and more particularly, to an artificial solar light system using light emitting diodes. The present invention can provide an artificial solar light system using light emitting diodes, which can represent the same light emission effects as the sun with time. Further, the present invention can provide an artificial solar light system using light emitting diodes, which is inexpensive and is not affected by positions or climate.11-24-2011
20110285294LIGHT EMITTING DIODE PRECISION APPROACH PATH INDICATOR (LED PAPI) - Described herein is a LED PAPI having an array of light emitting diodes (LEDs), the array of LEDs comprising a first set of LEDs emitting a first color and a second set of LEDs emitting a second color. Light from the array of LEDs passes through a pair of apertures separated by a precision ground blade. The precision ground blade has a first edge that is closest to the array of LEDs and a second edge opposite the first edge. The first and second edges have different thicknesses. After passing through the apertures, the light passes through a first lens and a second lens.11-24-2011
20110291572Display Drivers - An active matrix display comprises a display area of the matrix comprising drive circuitry including a control circuit comprising chiplets outside the display area. The output of the control circuit is distributed among the plurality of chiplets. This arrangement is advantageous in that the chiplets allow for a much smaller fan-in and fan-out structure, thus allowing a much larger percentage of the substrate to be devoted to display area.12-01-2011
20120098437Automatically Adjusting Task Light - A task light that includes a plurality of light emitting diodes (LED's) adapted for providing a variable intensity of emitted light; a light directing member for directing light from the LED's onto a work surface; a control logic, electrically connected to a light intensity selector, an ambient light sensor, and the plurality of LED's and wherein the control logic compares the intensity of ambient light in the area surrounding the work surface with the desired intensity of light to be provided at the work surface and adjusts the supply of electrical power to the LED's so that the total of the variable intensity of emitted light and the intensity of ambient light in the area surrounding the work surface is approximately equal to the desired intensity of light to be provided at the work surface.04-26-2012
20120139425Lighting Apparatus And Method - A lighting element is disposed in an array of lighting elements. At the lighting element, a lighting status of at least one neighboring lighting element is sensed. Independent of any other lighting element, a lighting adjustment for the lighting element by applying the sensed lighting status to a predetermined rule is determined. The lighting adjustment is applied to the lighting element to adjust an illumination of the lighting element.06-07-2012
20100264835LIGHT EMITTING SYSTEM WITH DUAL USE LIGHT ELEMENT - A solution is provided in which one or more of a plurality of light elements is alternately operated as a light emitting element and a light detecting element. For example, a system can operate a light element as a light detecting element while operating at least one other light element as a light emitting element in order to manage operation of the light elements to generate light having a set of desired attributes, evaluating an operating condition of the other light element(s), and/or the like.10-21-2010
20110215724SYSTEM AND METHODS OF INTELLIGENT ON/OFF MODES AND DIMMING FUNCTIONALITY FOR LIGHTING DEVICES - The present invention provides a system for intelligently controlling the ON/OFF modes and dimming functionality for lighting devices with built in redundancy. The system comprises: a plurality of sensor banks having a plurality of sensors capable of operating over exclusive ambient light levels and creating redundancy; and a micro-controller configured to add dimming functionality and automatically detecting faulty sensing situations and sudden change in the light level, wherein computing logics are adapted with the help of a high end micro-controller to increase sensitivity of the system.09-08-2011
20090189530METHOD AND APPARATUS FOR LIGHT INTENSITY CONTROL - The present invention provides a method and apparatus for optical feedback control for an illumination device, wherein the control signal for each array of one or more light-emitting elements corresponding to a particular colour, is independently configured using a modification signal whose frequency is different for each colour. Electronic filters whose center frequencies are substantially equal to the modification signal frequencies of the drive currents for the light-emitting elements are used to discriminate between the radiant flux corresponding to each of the different colours of light-emitting elements, from a sample of the mixed radiant flux output collected by one or more optical sensors. The output of an individual electronic filter is substantially directly proportional to the radiant flux output of the light-emitting elements of the associated colour, which together with the desired luminous flux and chromaticity of the output light, the controller can use to adjust the control signals.07-30-2009
20100277080METHOD AND DEVICE FOR GROUPING AT LEAST THREE LAMPS - The invention relates to a method and a device for grouping at least three lamps (11-04-2010
20110266958AC LED APPARATUS - An alternating-current (AC) light-emitting diode (LED) apparatus is disclosed. A rectifier rectifies a power AC voltage to generate a rectified voltage, which is monitored by a controller. A number of LEDs are electrically coupled between the rectified voltage and a ground. A number of switches correspondingly control at least a portion of the LEDs respectively, wherein one terminal of each switch is electrically coupled to one electrode of the corresponding LED or LEDs. The switches are controlled by the controller according to the rectified voltage.11-03-2011
20090273287SEMANTIC LIGHT - A lighting system for delivering a dynamic, fully customized, and automatic illumination to a subject. The lighting system comprises a programmable light unit for emitting a programmed pattern and spectra of illumination, a sensor pod comprising an array of sensors for detecting ambient lighting conditions and subject characteristics, a control unit for allowing a user to program the lighting system, and a processing unit for analyzing data from the sensor pod and control unit to construct an optimal lighting profile in accordance therewith. The lighting system generates light in accordance with the lighting profile which is fully optimized in spectrum, intensity, color, contrast, temperature, angle, and focus for any given environment, subject and task.11-05-2009
20090267523DRIVER CIRCUIT FOR LIGHT SHEET MODULE WITH DIRECT CONNECTION TO POWER SOURCE - A light sheet module includes a light sheet having LEDs on a substrate and a driver circuit for the LEDs. The driver circuit includes a first control loop and a second control loop. The first loop contains TRIACS for regulating current from an external AC power source to the LEDs in response to trigger signals. A constant current circuit receives a command signal indicative of a target current in the LEDs, and generates the trigger signals. Current feedback circuitry generates a current feedback signal indicative of the actual current in the LEDs. The constant current circuit responds to the current feedback circuitry and adjusts the trigger signals so that the actual current in the LEDs more closely approaches the target current. The second control loop contains a Driver controller that generates the command signal and that is responsive to an input device for the Driver controller.10-29-2009
20100277077Apparatus and method to enhance the life of Light Emitting diode (LED) devices in an LED matrix - The present invention is an apparatus to enhance the Life of LED devices in an LED matrix for illumination. It comprises of a spare LED matrix in addition to a main LED matrix. It further comprises of a constant current source which is the power source. Such constant current source is coupled directly to said main LED matrix and powers it up accordingly. In adverse conditions, say when the ambient temperature is high, continuous operation of said main LED matrix at full power will deteriorate the LED life. A power converter coupled to said constant current source operates and draws current to power on said spare LED matrix. This relieves said main LED matrix from full power and the reduction in illumination is largely compensated by said spare LED matrix. This invention further comprises a controller which senses temperature and other parameters and operates said spare LED matrix intelligently. The present invention is also a method to operate said apparatus to maximize LED life or to maximize illumination.11-04-2010
20110169413SYSTEM AND METHOD FOR CONTROLLING A LIGHTING SYSTEM WITH A PLURALITY OF LIGHT SOURCES - The invention relates to the controlling of a lighting system with a plurality of light sources, particularly to the semi-automatic commissioning of light sources of the lighting system or controlling of the creation of lighting scenes with the lighting system. A basic idea of the invention is to use a spatial coding of light for controlling a lighting system, particularly for commissioning of light sources of the lighting system instead of or in addition to the temporal light coding as applied in the prior art. An embodiment of the invention relates to a system for controlling a lighting system with a plurality of light sources (07-14-2011
20130099674METHOD OF REGULATING BLUE LIGHTING IN COMMAND CENTERS - Systems and methods for gathering data relating to time, personnel tasks, personnel awareness levels, and lighting and regulating the levels of white light or blue light in a command center to optimize personnel awareness, accuracy, and effectiveness. Systems and methods for optimum delivery of blue light for ambient, display and task or spot illumination via specialized fixtures, timing, and regulation to optimize alertness and efficiency in a 24-hour command center setting.04-25-2013
20130099675LIGHTING EFFECT DEVICE AND ELECTRIC DEVICE - A lighting effect device is provided, which is used for equipment with an operation surface that has a reflective characteristic. The lighting effect device includes at least a light supply unit for forming a light layer above the operation surface. The light layer is not crossed with the operation surface, where at least part of light of the light layer forms a visible lighting effect around an operator after reflected by the operator entering the light layer. The device requires less light sources and no position detection, so that the device is inexpensive and reliable. At the same time, a dodging layer and/or a reflective layer improve lighting effect and provide user a better experience.04-25-2013
20120293076Doppler Radar Motion Detector for an Outdoor Light Fixture - A motion detector system includes the ability to detect motion through the use of a Doppler radar sensor or a combination of PIR sensors and a Doppler radar sensor. The system includes an outdoor light fixture having one or more lamps and a housing coupled to the outdoor light fixture. The housing includes a Doppler radar sensor and a microprocessor for analyzing the signals received by the Doppler radar sensor. Alternatively, the housing includes a combination of PIR sensors and a Doppler radar sensor and a microprocessor for analyzing the signals received from these sensors. The lamps in the light fixture are activated when either the PIR sensor or the Doppler radar sensor generates a signal indicating motion within the monitored area. Alternatively, the lamps can be activated when either the PIR sensor or the Doppler radar sensor senses predetermined number of motion activities over a limited time period.11-22-2012
20120293077ENERGY MANAGEMENT CONTROL FOR SOLAR-POWERED LIGHTING DEVICES - This invention relates to a method of controlling the light output of a solar-powered lighting device. The lighting device comprises a light source, a battery connected to the light source, a solar-power generator including a charger connected to the battery, and a control unit for performing the light output control. The method comprises:—charging the battery while solar-power is generated;—acquiring local day-light data;—repeatedly:—acquiring, at predetermined time intervals, local weather fore-cast data covering a predetermined time period, and determining a lighting output profile for the predetermined time period; and—driving the lighting device according to the lighting output profile, wherein said determining a lighting output profile comprises:—predicting a lighting demand for the predetermined time period on basis of first environment light data, which first environment light data comprises the local day-light data;—predicting a battery capacity for the predetermined time period on basis of a present energy storage level and second environment light data, which second environment light data comprises the weather forecast data and the local day-light data; and—determining the lighting output profile on basis of the lighting demand and the battery capacity under consideration of keeping the energy storage level above a predetermined minimum level during the predetermined time period.11-22-2012
20110204795LIGHT EMISSION DRIVING DEVICE, ILLUMINATION DEVICE, DISPLAY DEVICE - A light emission driving device sequentially on a time division basis drives a red light source 08-25-2011
20110199004COMMISSIONING LIGHTING SYSTEMS - Commissioning a lighting system is disclosed. A user can be provided with a pointing device capable of emitting or returning a signal which can be received by detectors co-located with each fixture in the lighting system. The user can add a fixture to a group by aiming the pointing device at the fixture when the fixture is not assigned to the group, and the user can remove a fixture from a group in the same way when the fixture was previously assigned to the group. Additional user gestures are also disclosed.08-18-2011
20100102730LIGHT AND LIGHT SENSOR - An LED-based light tube for use in a conventional fluorescent fixture can feature a housing including a light transmitting portion. At least one electrical connector can be attached to the housing and configured for engagement with the conventional fluorescent fixture. At least one LED can be arranged to produce light in a direction toward the light transmitting portion. A sensor can be operable to detect a brightness level and output a corresponding signal. A controller can be in electrical communication with the at least one electrical connector and operable to control the at least one LED in response to the signal.04-29-2010
20100283392MULTIPLE SENSOR VARIABLE ILLUMINATION LEVEL LIGHTING SYSTEM - A circuit for operating a plurality of electrical devices at a plurality of varying power levels includes a plurality of motion sensor circuits for detecting motion relative thereto and having an a plurality of outputs conditioned upon motion detection. Additionally, a photocell sensor circuit for detecting a low ambient illumination level has an output command conditioned upon the detection of a predetermined illumination level that is electrically coupled to the control circuit having a plurality of inputs.11-11-2010
20080284341PHOTO DETECTOR AND METHOD FOR FORMING THEREOF - A photo detector is disclosed. The photo detector has a substrate, a semiconductor layer disposed on the substrate, an insulating layer covered on the semiconductor layer, an interlayer dielectric layer covered on the insulating layer, and two electrodes formed on a portion of the interlayer dielectric layer. The semiconductor layer has a first doping region, a second doping region, and an intrinsic region located between the first doping region and the second doping region. The interlayer dielectric layer has at least three holes to expose a portion of the insulating layer, a portion of the first doping region, and the second doping region. The electrodes are connected to the first doping region and the second doping region through two of the holes.11-20-2008
20110204794Light control device for public lighting lamps - A light control device for public lighting lamps (08-25-2011
20100264833CONTINUOUS CONTROL OF LED LIGHT BEAM POSITION AND FOCUS BASED ON SELECTION AND INTENSITY CONTROL - A lighting system comprising a plurality of light units, wherein said light units are arranged in an array, wherein the light beams of substantially each pair of adjacent light units overlap each other, and wherein the light system comprises a light control means which is arranged to adjust the intensity of each one of said plurality of light units individually, wherein said light control means is further arranged to maintain the total combined luminous flux incident of said plurality of light units on a predefined imaginary flat surface substantially equal when adapting the intensity of the individual light units.10-21-2010
20100201274ELECTRONIC DEVICE HAVING A PLURALITY OF LIGHT EMITTING DEVICES - The present invention relates to a solid state lighting system which comprises at least one luminaire controller (08-12-2010
20130119871METHOD AND SYSTEM FOR CONTROLLING THE LUMINOUS FLUX OF A LIGHTING ARRANGEMENT - The invention relates to a method for controlling the luminous flux of a lighting arrangement (05-16-2013
20110204796LIGHTING APPARAUTS - Disclosed is a lighting device. The lighting device includes: 08-25-2011
20120068610Method and apparatus for setting a chromaticity coordinate - A method for setting a color locus of a luminaire (03-22-2012
20120068609LIGHT SOURCE DEVICE - In a light source device for combining light waves with at least three wavelengths and outputting thus combined light waves, an optical system element and an electrical system element are formed on a semiconductor substrate, thereby eliminating the necessity of optical members such as an optical connector, and saving space to place the optical members as well as reducing arrangement spacing. In addition, the space necessary for wiring in an electrical circuit is reduced. Therefore, an integration degree of each of the elements, the optical system element and the electrical system element, is enhanced. The optical system element and the electrical system element are formed in layers on the same conductor substrate, thereby reducing the area that is required in configuring a parallel establishment of the optical system element and the electrical system element.03-22-2012
20090212708MULTI-ZONE CLOSED LOOP DAYLIGHT HARVESTING HAVING AT LEAST ONE LIGHT SENSOR - A multi-zone daylight harvesting method and apparatus having a closed loop system utilizing a single light sensor is disclosed herein. This light control system includes an ambient light sensor connected to a detection circuit for detecting the amount of ambient light within a given zone and converting the light signal to an digital one. A control device couples to receive a predetermined rate of change for each respective zone from a storage unit along with the converted digital signal. The control device connects each zone of a plurality of electrical loads to control the power supplied to the electrical load at the predetermined corresponding rate of change and responsive to the amount of ambient light detected.08-27-2009
20100148676THREE-COLOR RGB LED COLOR MIXING AND CONTROL BY VARIABLE FREQUENCY MODULATION - Perceived output color and intensity (brightness) of light from a three-element red-green-blue (RGB) light emitting diode (LED) or optical combination of three LEDs (red, green and blue) are controlled with three pulse train signals, each having fixed pulse width and voltage amplitude and then increasing or decreasing the frequency (increasing or decreasing the number of pulses over a time period) of these pulse train signals so as to vary the average current through each of the RGB-LEDs. This reduces the level of electro-magnetic interference (EMI) at any one frequency by varying the pulse train energy spectrum over a plurality of frequencies.06-17-2010
20120194082MULTI-FUNCTION LIGHTING SYSTEM - A multi-function lighting system is provided. A design of multiplex configuration of a multi-diode lighting module and a design of optical time domain modulation of an electric controlling system are applied to a lighting system which senses environmental conditions to automatically or artificially change a color, a light intensity and a color-temperature of a light to influence people's feelings and moods. At the same time, the environmental sensing device further feedbacks an information of humidity or temperature so that parameter of optimum light environment can be set accordingly. The multi-diode lighting module is applied to the design of the lighting system, such that the lighting system can be manufactured in a customization way to meet varied requirements in the landscaping and optical designs, not only reducing the cost and increasing mass production rate but also providing multi-functions including landscaping lighting, ergonomic lighting, plant lighting and air purifying.08-02-2012
20120194083GROUP CREATION IN AUTO-COMMISSIONING OF LIGHTING SYSTEMS - A lighting system for areal illumination is disclosed which may include a remote driver and a plurality of fixtures including luminaires. The luminaires may include a light source whose output light level can be adjusted, a light sensor co-located therewith adapted to measure light received from adjacent fixtures. The remote driver may provide power for the light sources of the luminaires.08-02-2012
20100264834LED LAMP COLOR CONTROL SYSTEM AND METHOD - An LED lamp color control system and method including an LED lamp having an LED controller 10-21-2010
20100156303Wind power plant and method for operating obstacle or hazard lighting of a wind power plant - A method for operating obstacle or hazard lighting of a wind power plant with a red beacon unit and a white beacon unit is provided. The red beacon unit is operated 24 hours a day and the white beacon unit is switched on and off, depending on the ambient brightness.06-24-2010
20100148675METHOD AND SYSTEM FOR CONTROLLING THE OUTPUT OF A LUMINAIRE - The present invention relates to a method of controlling the output of a luminaire comprising an array of LEDs emitting light of at least one color. The array has single color LED groups, wherein each group consists of at least one LED. The method comprises the following steps for each LED group:spectrally filtering the light emitted by the LED group by means of a first filter as well as by means of a second filter; detecting the spectrally filtered light from said first and said second filter and generating respective first and second response signals, wherein the levels of said first and second response signals are related to the respective amounts of detected spectrally filtered light; and controlling the light output of said LED group on the basis of said first and second response signals, wherein the filter characteristics of said first and said second filter are at least partly non-overlapping. The invention also relates to a corresponding control system for performing the method.06-17-2010
20100176732DIRECTION CONTROLLABLE LIGHTING UNIT - A direction controllable lighting unit (07-15-2010
20100259175METHOD AND ARRANGEMENT FOR ADJUSTING A COLOR LOCATION, AND ILLUMINATION SYSTEM - A method for setting a color location is provided. The method may include providing n luminous sources of which n-3 luminous sources have been, or are preset; determining a color location difference of the n luminous sources from a desired color location; and setting the 3 luminous sources not preset are set such that the desired color location is achieved.10-14-2010
20100277079 LIGHT SOURCE - Light source having a plurality of light elements (11-04-2010
20100277078PLANT LIGHTING SYSTEM - Lighting systems for providing supplemental light to plants to facilitate plant growth and/or to provide supplemental lighting in situations where sunlight is insufficient. Lighting systems may use LED technology to deliver specific wavelengths of light to maximize utilization of the supplemental light for photosynthesis. By delivering light having one or more specific wavelengths, it is possible to use a light that consumes relatively little power (e.g., about 10 watts or less) while providing sufficient supplemental light to facilitate healthy plant growth. Lighting systems may include a light-sensor to facilitate control of the amount of light provided. For example, a light-sensor may be used to automatically adjust the amount (e.g., intensity or duration) of light provided when the amount of ambient light available to the plant dips below a predetermined level.11-04-2010
20100219761SENSING CODED LIGHT USING RETRO REFLECTORS - This invention relates to a luminaire comprising a light source emitting output light, and a detector unit, which is arranged to detect received light emanating from a remote reflection of said output light, wherein the detector unit comprises a first identifier, which is arranged to identify a remotely introduced reflector identifying light coding of the received light. The invention also relates to a method for determining a property of light at a remote position.09-02-2010
20120139426DIMMABLE OUTDOOR LUMINAIRES - A dimmable outdoor lighting fixture apparatus is provided with a dimmable ballast or driver mounted in a horizontal cobra head luminaire fixture, and a photo eye control module connected to the fixture by an EEI/NEMA standard 3-terminal polarized twist-lock receptacle mounted to the fixture housing, with the controller module providing a dimming control value to the ballast or driver through the twist-lock receptacle.06-07-2012
20100079075Light Emitting Apparatus - A fluorescent lamp type light emitting apparatus is provided. The light emitting apparatus comprises a cover, a light emitting module, radiation pads, and cap parts. The cover comprises a first cover and a transmissive second cover coupled to the first cover. The light emitting module comprises a plurality of light emitting diodes in the cover. The radiation pads are disposed on the light emitting module. The cap parts comprise electrode terminals at both ends of the cover.04-01-2010
20090140657Light Source Device, a Display Device and Television Receiver - A light source device and a display device are disclosed of which high display quality can be maintained by correcting luminance or a color tone without making a user feel strangeness or inconvenience. A light source device is disclosed in at least one embodiment, including light source blocks each of which has red-color light-emitting diodes, green-color light-emitting diodes and blue-color light-emitting diodes and is capable of independently adjusting luminance of the three color diodes, a photo-receiving mechanism arranged to photo-receive light, and a correcting operation control mechanism arranged to calculate correction amounts of the luminance of the light sources in each of the blocks based on photo-receiving amounts of the photo-received light in order to maintain uniform luminance or a uniform color tone among the blocks, wherein the mechanism controls the mechanism to photo-receive the light when a termination operation of the light source device is performed.06-04-2009
20100295455APPARATUS AND METHOD OF ENERGY EFFICIENT ILLUMINATION - An illumination system correlates solar time to a clock and controls lighting or illumination based on time. The illumination system may turn ON light source(s) at a first level at a turn ON time, correlated to be around or at dusk, and turn OFF light source(s) at a turn OFF time, correlated to be around or at dawn. The illumination system may reduce a level of light output, and hence power consumption, at a time after turning ON a light source, and increases the level of light output at a time prior to turning OFF the light source. Turn ON, turn OFF, decrease and increase times may be determined based on recent levels of light or illumination in the environment, for example via average or median levels over a number of previous daily cycles. Filtering may eliminate aberrant events.11-25-2010
20100295454APPARATUS AND METHOD OF ENERGY EFFICIENT ILLUMINATION - An illumination system reduces a level of light output, and hence power consumption, at a time after turning ON a light source, and increases the level of light output at a time prior to turning OFF the light source. A control subsystem can determine when to increase the level of light based on a predicted time when the light source will be turned OFF. The control subsystem may determine an average or median length of time that the light source has been turned on for a number of recent daily cycles. A control subsystem may be an integral part of a luminaire or may be a retrofit.11-25-2010
20130134886Intelligent Lighting Management and Building Control Systems - Methods, systems and apparatuses for controlling and managing a plurality of luminaires are disclosed. One method includes sensing, by a sensor of each of the plurality of luminaires, light received by the sensor, communicating, by a device, with the plurality of luminaires by a device through light pulses, commissioning and calibrating, by the device, the plurality of luminaires using the communication, and placing, by the device, at least one of the plurality of luminaires on a floor plan through the communication with light pulses, wherein the at least one of the plurality of luminaires identifies itself over a network.05-30-2013
20100301756RELIABLE LIGHTING SYSTEM - A lighting system (12-02-2010
20100301757 Device And A Method For Controlling Light Emission - The invention relates to a device and a method for controlling the light emission (12-02-2010
20100134022Electrically illuminated flame simulator - An electrically powered flame simulator comprises at least two light sources, an integrated circuit electrically connected to the light sources for intermittently illuminating at least one of the light sources independently of other light sources such that the light sources together provide the effect of a flickering movement, and a power source for providing power to the integrated circuit. The flame simulator may be mounted in a decorative or ornamental device such as a candle or fire log, or used on decorative clothing, or may be part of a hazard or warning system. One or more solid state light sources may also be used.06-03-2010
20110001431LIGHT EMITTING DIODE LIGHT ENGINE - An LED light engine system that incorporates light emitting diodes (LEDs) with one or more distinct colors, including broad band white light obtained from phosphors or a combination of LED die colors and LED die coated phosphors. The LED die or die arrays are mounted to a high thermal conductivity circuit board comprising COB technology which can include both the LED die and electronic drive components resulting in a compact and reliable design with improved thermal and optical performance. High efficiency non-imaging collection optics are coupled to the LEDs to efficiently capture substantially all of the light which they emit and reformat it as an output with substantially the same éntendue as that of the LED to provide high brightness sources. Feedback from the output back to a photosensor on the circuit board is provided to assure that the output of the collection optic remains constant.01-06-2011
20110001432LIGHT EMITTING DEVICE WITH COMPENSATION CAPABILITY - A light emitting device with compensation capability is disclosed herein which includes a plurality of light emitting diodes, when a light emitting diode is out of order, the remaining of the light emitting diodes can still working properly; a status detecting unit; a power controlling unit; a processing unit to provide the control signals to the power controlling unit in order to dynamically provide the power to the light emitting diodes. By utilizing the LED device with light compensation capability, it can provide the stable power compensate.01-06-2011
20110241552METHOD FOR MAXIMIZING THE PERFORMANCE OF A LUMINAIRE - A method for maximizing the performance of a luminaire (10-06-2011
20110018448SYSTEM AND METHOD FOR AN OUTDOOR LIGHTING FEATURE WITH AN INTEGRATED SOLAR PANEL - A system and method for operating an outdoor lighting feature is provided, the outdoor lighting feature including a bollard, a solar panel disposed within a recess on the top of the bollard, a battery disposed within the bollard, the battery being electrically coupled to the solar panel and configured to receive and store energy from the solar panel, and a light source oriented to direct a light beam to a region external to the bollard, the light source being configured to draw an electric load from the battery. The system detects a change in an ambient light level, starts a timer and places a light source in a high-on state in response to the change in the ambient light level, monitors the timer, places the light source in a low-on state upon measuring a first predefined amount of lapsed time on the timer, and places the light source in an off state upon measuring a second predefined amount of lapsed time on the timer.01-27-2011
20110043116ILLUMINATION SYSTEM AND METHOD FOR PROCESSING LIGHT - Proposed is an illumination system (02-24-2011
20110115385Illumination arrangement for illuminating horticultural growths - The invention provides an illumination arrangement (05-19-2011
20100141155METHOD OF DRIVING LIGHT SOURCE, LIGHT SOURCE DRIVING APPARATUS FOR PERFORMING THE METHOD, AND DISPLAY APPARATUS HAVING THE LIGHT SOURCE APPARATUS - A method of driving a light source includes adjusting a number of duty adjustments of driving signals driving light sources based on a dimming control signal and adjusting each duty ratio of each of the driving signals provided to each of the light sources in accordance with the adjusted number of the duty adjustments.06-10-2010
20100219760LED LUMINAIRE - An LED luminaire is provided with a light emitting module composed of plural kinds of LEDs emitting lights of different colors, a lens unit having a lens for diffusing the mixed-color light from the light emitting module, a light output controller for controlling electric current fed to each of the LEDs, and a light sensor for sensing the light from the light emitting module. The light output controller performs feedback control on the electric current fed to each of the LEDs based upon light levels of the sensed light, so that the light emitted from the light emitting module has desired chromaticity. The lens unit contains a light guide for guiding the light from the lens to the light sensor and can guide the light from the light emitting module to the light sensor with a high efficiency.09-02-2010
20110084615LED ASSEMBLY, LED FIXTURE, CONTROL METHOD AND SOFTWARE PROGRAM - A plurality of LEDs arranged in groups, each group comprising at least one LED, a control circuit for driving the LEDs, the control circuit comprising a sensing device for sensing an operative parameter of the LEDs. The control circuit is arranged to: a) operate at least one group of the LEDs: b) sense by the sensing device a value of the operative parameter of the at least one group; c) repeat a) and b) for at least a different one of the groups; d) assign to each of the groups of LEDs a value of the operative parameter from the sensed operative parameter values; and e) control the driving of the groups of LEDs from the assigned operative parameter values.04-14-2011
20110068697Phosphor Converted Light Source Having an Additional LED to Provide Long Wavelength Light - A light source having first and second LEDs and a phosphor layer that converts light generated by the first LED is disclosed. The first LED emits light at a first wavelength. The layer of phosphor is illuminated by the first LED, the phosphor being excited by light of the first wavelength to convert light of the first wavelength to a band of wavelengths having wavelengths between the first wavelength and a second wavelength. The second LED emits light at a third wavelength that is greater than the first wavelength. The phosphor is not substantially excited by light of the third wavelength. The combined light from the phosphor, and first and second LEDs is perceived as being white by a human observer.03-24-2011
20110101872SYSTEMS AND METHODS FOR EMBEDDING INTERRUPTS INTO A SERIAL DATA STREAM - Systems and methods for transmitting and processing interrupts by embedding interrupt information into a serial data stream are disclosed. An event is detected and converted into an interrupt signal. The interrupt signal is converted into a special interrupt character or symbol sequence. The special interrupt character or symbol sequence is embedded into a serial data stream at the next available character or symbol boundary and transmitted to a receiving controller. The receiving controller strips the special interrupt character or symbol sequence from the serial data stream and raises a corresponding interrupt. The receiving controller processes the interrupt by interrupting normal processing to run an interrupt subroutine. Once the receiver has detected and raised an interrupt, it can return an acknowledgement character or symbol sequence by the same mechanism. The transmitter can repeat the interrupt embedding and transmission if it fails to receive the acknowledgement within a predetermined period of time.05-05-2011
20110068696SOLID STATE LIGHTING APPARATUS WITH CONFIGURABLE SHUNTS - A solid state lighting apparatus according to some embodiments includes a circuit including a plurality of light emitting devices, and a configurable shunt configured to bypass at least some current around at least one light emitting device of the plurality of light emitting devices. The configurable shunt may include, for example, a tunable resistor, a fuse, a switch, a thermistor, and/or a variable resistor.03-24-2011
20090026966LIGHTING SYSTEM WITH LIGHTING UNITS USING OPTICAL COMMUNICATION - A lighting system and a method of operating the lighting system are described. A plurality of lighting units (01-29-2009
20110163677LIGHTING DEVICE, LIGHTING AND LIGHTING METHOD - The present invention relates to a lighting device and a lighting method, in particular for a swimming pool.07-07-2011
20110254453SYSTEM PROVIDING AUTOMATIC AND MANUAL CONTROL OF AN ILLUMINATION LEVEL IN A SPACE - A method of controlling a light level in a space of a building, the method comprising the steps of measuring the light level in the space; automatically adjusting the light level in the space towards a control setpoint; receiving an input to manually override the light level in the space to an override light level; adjusting the light level in the space to the override light level; temporarily adjusting the control setpoint from a default setpoint to a temporary setpoint in response to the manual override of the light level, the temporary setpoint representative of the override light level; subsequently adjusting the control setpoint from the temporary setpoint back to the default setpoint; and adjusting the default setpoint in response to repeated manual overrides of the light level that result in repeated adjustments of the control setpoint.10-20-2011
20120169240SEMI RESONANT SWITCHING REGULATOR, POWER FACTOR CONTROL AND LED LIGHTING - Described are improvements in power factor control and systems embodying said improved power factor control. Improvements lie in a method of zero voltage switching in which a capacitor is placed in parallel with a switching device, and the switching device is operated responsive to a change in the polarity of the current through the capacitor. Switching therefore occurs at zero or close to zero voltage across the switching device in both on and off modes resulting in very low switching losses and electromagnetic interference. Systems employing the method include a power factor controller, LED light source, boost converter and a power source comprising one or more photovoltaic cells.07-05-2012
20100320917ENERGY-SAVING STREET LIGHTING CONTROL SYSTEM - A lighting control system for controlling a luminaire includes detection module and a control unit. The detection module is configured to detect traffic flow of a road and ambient light along the road. The control unit coupled with the detection module is configured to receive a detection result of the detection module and generate a control signal according to the detection result and a preset data stored therein for controlling illumination of the luminaire.12-23-2010
20110133654TUNABLE COLOUR LED MODULE - A tunable colour LED module comprises at least two sub-modules, each comprising an LED (06-09-2011
20110080100LIGHT SENSOR DEVICE AND LIGHT CONTROL DEVICE - Sensor devices (04-07-2011
20110080099DUTY CYCLE ADJUSTING CIRCUIT OF A LIGHTING SYSTEM AND METHOD THEREOF - The present disclosure relates to a duty cycle adjusting circuit of a lighting system and method thereof for sensing light of a first color and a second color emitted by a light emitting device of the first color and a light emitting device of the second color to generate corresponding intensity values. Then a first pulse width correcting value and a second pulse width correcting value can be calculated for adjusting a first duty cycle and a second duty cycle of a driving current to adjust the illuminating intensity of the light emitting devices of the first and the second colors. Through these adjusting steps, the light of the first and the second colors is within a predetermined range of color temperature. Therefore, light source for stable light in color temperature is provided.04-07-2011
20110089842Apparatus and Methods for Interactive Illumination - In illustrative implementations of this invention, a lighting system comprises a plurality of LEDs, fluorescent lights, incandescent lights, a processor, a sensor node and a human-computer interface. The sensor is adapted to be moved by a user and placed in the location that a user wants to illumine. The LED lights are adapted to emit pulse-width modulated (PWM) light, controlled by signals from the processor. The lighting system is adapted to optimize parameters (such as efficacy or color rendering index) selected by the user, subject to certain constraints (such as desired illuminance or color temperature). According to principles of this invention, if a sensor is moved, attenuation may be measured and the inverse square law may be used to determine how constraints in an optimization algorithm need to be updated.04-21-2011
20100117544METHODS AND SYSTEMS FOR WIRELESS COMMUNICATION WITHIN A GAMING MACHINE - A gaming machine includes a main door coupled to a main cabinet and a controller positioned within the main cabinet, wherein the controller includes a wireless transmitter configured to transmit wireless control signals. The gaming machine also includes a display board coupled to the main door, wherein the display board includes a plurality of light devices and a wireless receiver configured to receive the wireless signals from the wireless transmitter, and wherein the wireless signals are representative of control commands for the plurality of light devices.05-13-2010
20100194290ILLUMINATION LIGHT SOURCE DEVICE - A low-cost, high-reliability, high-luminance light source is provided without the need to provide a spare light source. An LED light source device (08-05-2010
20110187273LIGHTING CONTROL SYSTEM FOR A PLURALITY OF LUMINAIRES - A lighting control system includes a plurality of luminaires each having a selectively powerable first light source and a selectively powerable second light source. The luminaires are powerable and controllable by a common AC power source. A signal receiving controller of each of the luminaires is electrically connected to the first light source and the second light source and selectively causes power to be routed to either the first light source or the second light source dependent on a control signal sent via the AC power source.08-04-2011
20100072901METHOD AND DRIVER FOR DETERMINING DRIVE VALUES FOR DRIVING A LIGHTING DEVICE - The present invention relates to a method for determining drive values for driving a lighting device at a desired brightness and color. The method comprising the steps of determining a first luminous flux weight ratio based on the desired color and a first drive current for driving each of the differently colored LEDs, determining a first luminous flux for each of the differently colored LEDs based on the desired brightness and the first luminous flux weight ratio, comparing, for each of the differently colored LEDs, the first luminous flux with a nominal luminous flux for a plurality of different drive currents, selecting, for each of the differently colored LEDs, a preferred drive current that at least can produce the first luminous flux, determining a second luminous flux weight ratio based on the desired color and the selected drive currents for each of the differently colored LEDs, determining a second luminous flux for each of the differently colored LEDs based on the desired brightness and the second luminous flux weight ratio, and determining a duty cycle for each of the differently colored LEDs at the selected drive currents, wherein the selected currents at the determined duty cycles produces the second luminous flux for each of the differently colored LEDs. The present invention provides for the possibility to limit the number of necessary computational steps for determining preferred drive currents. Furthermore, an increase in number of current level and/or differently colored LEDs would only slightly increase the computational cost.03-25-2010
20100026194Daylight control system, device and method - A system and device for and a method of programming and controlling light fixtures is disclosed. A system in accordance with the present invention includes a stationary controller unit that is electrically coupled to the light fixtures. The stationary controller unit is configured to be remotely programmed with a portable commissioning device to automatically control the lights fixtures. The stationary controller unit and the portable commissioning device include light sensors, micro-computers and transceivers for measuring light levels, running programs, storing data and transmitting data between the stationary controller unit and the portable commissioning device. In operation, target light levels selected with the portable commissioning device and the controller unit is remotely programmed to automatically maintain the target level.02-04-2010
20120098439Coordinated System of Battery Powered Wireless Lights - In embodiments of the present invention improved capabilities are described for systems and methods that employ a control component and/or power source integrated in an LED based light source to control and/or power the LED light source wirelessly. In embodiments, the LED based light source may take the form of a standard light bulb that plugs into a standard lighting socket or fixture.04-26-2012
20120098438ILLUMINATION ADJUSTMENT CIRCUIT - An illumination adjustment circuit includes a light sensitive unit, an amplification unit, a switch unit, and a light emitting unit. The switch unit includes a plurality of electronic switches with increasing threshold voltages. The light emitting unit includes a plurality of sets of light emitting diodes corresponding to the electronic switches. Each set of the light emitting diodes is connected to the amplification unit through one of the electronic switches corresponding thereto. The light sensitive unit detects the brightness of ambient light, outputting a first voltage to the amplification unit accordingly. The amplification unit amplifies the first voltage to a second voltage and outputs the second voltage to the switch unit, so that the electronic switches with the threshold voltages lower than the second voltage are turned on, and the set of light emitting diodes connected to the electronic switch becomes luminous.04-26-2012
20090174332COLOUR TEMPERATURE AND COLOUR LOCATION CONTROL FOR A LIGHT - The present invention relates to a method for providing control signals for a light whose colour or colour temperature is variable. The invention also relates to a corresponding control apparatus and a corresponding lighting system. In the method, a series of at least three colour locations (F07-09-2009
20110074297Electrically illuminated flame simulator - An electrically powered flame simulator comprises at least two light sources, an integrated circuit electrically connected to the light sources for intermittently illuminating at least one of the light sources independently of other light sources such that the light sources together provide the effect of a flickering movement, and a power source for providing power to the integrated circuit. The flame simulator may be mounted in a decorative or ornamental device such as a candle or fire log, or used on decorative clothing, or may be part of a hazzard or warning system. One or more solid state light sources may also be used.03-31-2011
20110115386Illumination system with automatic adaptation to daylight level - An illumination system (05-19-2011
20120306383SELECTIVE RADIATION UTILIZATION APPARATUSES FOR HIGH-EFFICIENCY PHOTOBIOREACTOR ILLUMINATION AND METHODS THEREOF - A selective radiation utilization apparatus includes an optical filtering device and a modulation device. The optical filtering device transmits one or more selected spectral bands of incoming solar radiation and reflects one or more remaining bands of the incoming solar radiation. The modulation device spatially modulates one of the one or more selected spectral bands or the one or more remaining bands and directs the spatially modulated one of the one or more selected spectral bands or the one or more remaining bands towards a target of illumination.12-06-2012
20120306382SUSTAINABLE OUTDOOR LIGHTING SYSTEM AND ASSOCIATED METHODS - A light fixture is described that measures the ambient light intensity and determines whether to provide illumination. The light fixture may further determine a traffic status proximate the fixture and adjust the illumination accordingly. A network of light fixtures is also provided, the light fixtures communicating data to each other and determining illumination states therefrom.12-06-2012
20120306381MULTIMODE COLOR TUNABLE LIGHT SOURCE - Described herein are ambient lighting devices, methods, and systems that utilize at least one multimode artificial ambient light source, a control unit, and a remote image sensor. The control unit couples to at least one artificial ambient light source and is configured to output at least one control signal to the at least one artificial ambient light source. The at least one multimode artificial ambient light source is configured to output light of varying color and color temperature in response to said at least one control signal. The remote image sensor couples to the at least one control unit and is configured to detect at least one color and intensity characteristic and output an output signal to the at least one control unit, based on said color and intensity characteristic detected.12-06-2012
20120306380MULTIMODE COLOR TUNABLE LIGHT SOURCE AND DAYLIGHTING SYSTEM - Described herein are day lighting systems that utilize a combination of at least one natural light source with at least one multimode artificial light source. Also disclosed are methods for designing and operating such systems.12-06-2012
20120038281OUTDOOR LIGHTING FIXTURES CONTROL SYSTEMS AND METHODS - One embodiment of the invention relates to a system for operating a plurality of streetlights in response to motion from a vehicle. The system includes a sensor associated with at least one of the streetlights and configured to detect the presence of a moving vehicle and to provide a signal representative of the moving vehicle. The system further includes a radio frequency transceiver associated with each of the streetlights. The system yet further includes processing electronics configured to receive the signal representative of the moving vehicle from the sensor and to cause the radio frequency transceiver to transmit a command to one or more of the plurality of the streetlights to change lighting states along a pathway for the vehicle.02-16-2012
20110050108ILLUMINATION SYSTEM AND ILLUMINATION CONTROL METHOD THEREOF - An illumination system including a master control unit, a device unit, a driving circuit unit, and an illumination unit is provided. The master control unit receives an input signal and outputs a control signal by performing a program operation processing to the input signal. The device unit analyzes the control signal so as to obtain a color temperature setting value and a brightness setting value, and generates two output signals according to the brightness setting value and two color temperature adjusting signals determined by the color temperature setting value. The illumination unit has at least two lamps with different color temperatures. The driving circuit unit receives and converts the two output signals so as to proportionally output two driving signals to respectively drive the two lamps. One of the two output signals is enabled after the other of the two output signals is disabled for a predetermined time.03-03-2011
20110156596METHOD AND APPARATUS FOR CONTROLLING AND MEASURING ASPECTS OF TIME-VARYING COMBINED LIGHT - Methods and apparatus are disclosed for providing combined time-varying light comprising light from one or more light sources (06-30-2011
20110156595LIGHT-GUIDE DEVICE AND MOUNTING ASSEMBLY USING SAME - A light-guide device is provided for detecting and amplify the light emitted by indicator lamps of functional modules mounted in a chassis. The light-guide device includes a plurality of light-guide columns, a circuit board, and a plurality of light-guide blocks. The circuit board includes a plurality of amplifying circuits, each including a photosensitive diode and a plurality of light-emitting diodes (LEDs). One of the LEDs is lit when the photosensitive diode detecting the light emitted by the indicator lamp of one corresponding functional modules. The light-guide blocks guide lights emitted by the corresponding LEDs to an outside of the chassis.06-30-2011
20120007512POWER SUPPLY DEVICE FOR DRIVING LIGHT EMITTING DIODE - A power supply device for driving a light emitting diode (LED) capable of controlling the switching of multiple output powers, in synchronization with the frequency of one of the multiple output powers and simplifying a power conversion stage in supplying power for driving an LED.01-12-2012
20120007511AMBIENT AND TASK LEVEL LOAD CONTROL - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for cooperatively controlling ambient level lighting in a controlled area, and task level lighting for task areas in the controlled area, wherein each task area is a separate sub-area of the controlled area.01-12-2012
20120013257ILLUMINATION CONTROL NETWORK - The present invention addresses the problem of providing illumination in a manner that is energy efficient and intelligent. In particular, the present invention uses distributed processing across a network of illuminators to control the illumination for a given environment. The network controls the illumination level and pattern in response to light, sound, and motion. The network may also be trained according to uploaded software behavior modules, and subsets of the network may be organized into groups for illumination control and maintenance reporting.01-19-2012
20120025716BACKLIGHT DEVICE AND DISPLAY DEVICE - Disclosed is a backlight device that suppresses the increase of maximum power consumption. A light-emitting unit (02-02-2012
20120025715STABLIZED LIGHT SOURCE HAVING LUMINANCE FEEDBACK CONTROL - An optical lighting apparatus having a constant luminance with a drive current controlled by a controller unit. A temperature controlled photodetector indirectly monitors the luminance and informs the controller when a change in luminance has occurred so that the controller can make appropriate adjustments to the drive current. Also disclosed is a method of regulating the drive current to a light source to enable the luminance to remain fixed and independent of fluctuations in ambient temperature. A temperature compensated photodetector senses the amount of light reflected off a diffuser lens and feeds back the output to a controller circuit which regulates the drive current to the light source. The lighting apparatus has application in calibrating imaging systems, such as digital cameras, and for scanning devices.02-02-2012
20120025717INTELLIGENT LIGHTING CONTROL SYSTEM - Multiple control modules (02-02-2012
20120153840Illumination control system for motion and daylight in large structures - A cost effective illumination control system calculating motion and daylight or surrounding light inputs, particularly in large structures where the light distribution is not uniform across time. The system divides the structure into zones each having input capability with regard to occupation and background light levels. Each zone being able to make independent decisions with regard to control of lighting levels in the zone, yet the zones being able to cooperate in a coordinated fashion to provide uniform lighting to the structure as a whole.06-21-2012
20120153839AUTOMATIC COLOR CORRECTION FOR A DOME LIGHT DISPLAY DEVICE - A device and method that automatically corrects the color of a dome light display device. An dome light display device may include one or more colored light emitting diodes (LEDs) arranged in a row, a photodetector disposed with the one or more LEDs in the row and a measurement circuit is configured to receive an electrical signal from the photodetector and compare the electrical signal to a reference signal associated with an intensity of light for a particular color of light and adjust the intensity of light emitted from the one or more LEDs based on the reference value.06-21-2012
20110084614LED LIGHTING SYSTEM - A system and method involving lighting fixtures, a control network, a controller and other devices such as light sensors, input devices and network adapters for coordinating precise brightness and color schedules among the lighting fixtures while maintaining a high color reliability including provisions for managing a plurality of lighting fixtures. The lighting fixtures contain lighting elements selected such that when controlled properly, operating along a daytime locus, the resultant light output closely resembles sunlight on a cloudless day in spectral characteristics, and wherein the total flux of blue light can be adjusted from a relative level of 1-100% the maximum blue flux of the lighting fixture by controlling individual lighting elements.04-14-2011
20120119659CONSTANT CURRENT LED LAMP - A constant current LED lamp is provided with a linear driver circuit for driving multiple light emitting diodes (LEDs), or LED packages comprise multiple LED chips, connected in series. The driver circuit includes a rectifier circuit, a stable voltage circuit, and a constant current circuit. The driver circuit allows the aggregate forward voltage drop of all the LEDs connected in series to approach the rectified input voltage to efficiently utilize the AC power from the mains.05-17-2012
20100289412Integrated lighting system and method - System and method are provided where a plurality of luminaires, control switches, occupancy detectors, and photocells are connected to a central control module including a user interface which is used for setting up, testing, commissioning and maintaining the system; a memory card interface and associated memory card which can be used to load and save configuration data, update firmware, and log system operation. Lighting system can be set up and tested and then the configuration saved in a portable memory, such as on a memory card which can be transferred to another system where it is read to facilitate faster and easier configuring of the other system to parallel, or to be exactly like, the original system. Data stored on a portable memory can be automatically recognized to perform appropriate actions such as, for example: update configuration, or update firmware. Also provided is switching between different mutually exclusive lighting modes where the lighting of each mode is sequenced such that the second lighting mode is initiated before the first mode is terminated, resulting in a continuity of lighting in the controlled area. Other features include daylight harvesting control with multiple zone dimming and switching, programmable attack and decay dimming rates, the ability to return a system to its previous dimming level after the lights have been turned off, and the ability to start the controlled lights at full light level then dim down to the previous level to ensure the lighting ballast have sufficient voltage to start up.11-18-2010
20120248990METHOD AND APPARATUS FOR A SWITCH HAVING A LIGHT PIPE FOR COMBINED LED DISPLAY AND LIGHT LEVEL SENSING - An electrical wiring device includes a manually adjustable switch, a light emitting diode (LED), a light level sensor, and a microcontroller. The wiring device also optionally includes an occupancy sensor. Light level is sensed through a light pipe and light is emitted by the LED through the same light pipe. When the manually adjustable switch is positioned to energize a load, the LED is deactivated and ambient light level is sensed by light sensors through the light pipe. The ambient light level is compared to a minimum ambient light level to determine if the load will be energized. Alternatively, the LED is deactivated and the ambient light level is sensed through the light pipe when the switch is positioned to de-energize the load. This ambient light level is stored and compared to the minimum ambient light level at a time when the switch is later positioned to energize the load.10-04-2012
20120248991INTEGRATION OF LED LIGHTING WITH BUILDING CONTROLS - An LED-based light can be installed in a conventional light fixture. The LED-based light can include a sensor operable to output a first signal indicative of whether an area of one or more of the rooms is in an occupied state or a non-occupied state, and the LED-based light can also include an LED controller operable to control at least one LED in the light in response to the first signal. Additionally, the LED-based light can include a transmitter operable to output a second signal indicative of whether the area is in the occupied state or the non-occupied state to a building environment regulator.10-04-2012
20100244707LED LAMP POWER MANAGEMENT SYSTEM AND METHOD - An LED lamp power management system and method including an LED lamp having an LED controller 09-30-2010
20120126709Lighting System having a Power Supply Apparatus, Control Apparatus for a Lighting System, and Method for Controlling a Lighting System - A lighting system comprising a power supply apparatus (05-24-2012
20120161644ENERGY-SAVING LAMP - An energy-saving lamp includes a light emitting module, a light sensing module and a control module. The light emitting module includes a plurality of light emitting diodes for emitting light. The light sensing module detects a light intensity of the light emitting module and generates a detection signal according to the light intensity of the light emitting module. The control module receives the detection signal generated by the light sensing module and adjusts the total number of lit up light emitting diodes of the light emitting module according to the detection signal.06-28-2012
20100207531COLOR MANAGEMENT FOR FIELD-SEQUENTIAL LCD DISPLAY - A method of color control for a backlight utilizing colored light emitting diodes (LEDs), the method constituted of: providing a plurality of colored LED strings constituted of at least three different colors; lighting each of the plurality of colored LED strings to provide a backlight; providing a period wherein none of the colored LED strings are lit; obtaining during the provided period when none of the colored LED strings are lit, an indication of an ambient light; obtaining during the provided period when the colored LED strings are lit, an indication of the optical output of the colored LED strings; and controlling the lighting of the provided plurality of colored LED strings responsive to the received indication of ambient light and the received indication of the output of the colored LED strings. Preferably, the method is performed in cooperation with an on-board color sensor.08-19-2010
20120313533Intelligent and Energy-Saving LED Lamp with Glimmer and Full Light Emission - An intelligent and energy-saving LED lamp with glimmer and full light emission includes a lamp holder and a LED substrate disposed in the lamp holder. A plurality of LEDs is provided on the LED substrate. An infra-red sensing device with an infra-red detecting head is disposed inside the lamp holder. A lampshade is connected to a top end of the lamp holder and includes a protruding cover corresponding to the infra-red detecting head. The LEDs do not light up when there is enough light from external surrounding. The LEDs radiates a glimmering light when there is not enough light from external surrounding and the infra-red detecting head does not sense any movements of objects. The LEDs radiates a full light when there is not enough light from external surrounding and the infra-red detecting head senses movements of objects.12-13-2012
20120169239LIGHTING SYSTEM FOR DIM AMBIENCE - A lighting system for dim ambience has at least one light source module, implemented in an ambience. The light source module has multiple light emitting units. Each unit is respectively controlled to produce a luminance. A luminance detecting unit detects a photonic luminance and a luminance ratio. A processing and operation module calculates a mesopic luminance according to the photonic luminance and the luminance ratio. When the photonic luminance is less than a dim-light setting value, a power control information is obtained by a fitness operation with a given condition set. The power control information is corresponding to an optimized mesopic luminance after fitness. A control unit receives the power control information to modulate the luminance of the light emitting units.07-05-2012
20100052547ILLUMINATION SYSTEM - An illumination system (03-04-2010
20100052546Method and Apparatus for Mounting and Assembling LED Lens Assemblies in Electronic Displays - Lighting elements include light emitting diodes mounted on a circuit board with a lens assembly that may be positioned substantially near the light emitting diode to allow light from the light emitting diode to pass through a lens portion of the lens assembly. The lens assembly includes a connecting base piece to detachably connect the lens assembly to the circuit board. A method of connecting a lens to a circuit board may also include placing a lens assembly including the lens over a light emitting diode and detachably connecting the lens to the circuit board by detachably connecting a base piece of the lens assembly to the circuit board.03-04-2010
20120074850ILLUMINATING DEVICE - Disclosed is an illuminating device which has: a first illuminating lamp which is disposed at a first predetermined position and is identifiable; a second illuminating lamp which is disposed at a second predetermined position having a predetermined relationship with the first predetermined position and is identifiable; a determining means which determines the mutual relationship between the first illuminating lamp and the second illuminating lamp; and a transmitting means which transmits identifiable control signals to the first illuminating lamp and the second illuminating lamp, respectively, so as to achieve the determination made by the determining means.03-29-2012
20120187849Spectral Detection Device for Detecting Spectral Components of Received Light - The present invention relates to a spectral detection device (07-26-2012
20120262071LIGHTING APPARATUS AND METHOD FOR DETECTING REFLECTED LIGHT FROM LOCAL OBJECTS - Lighting apparatus and method for detecting reflected light from local objects are disclosed. A controller within a lighting apparatus is used to activate and deactivate one or more LEDs within a duty cycle. The controller uses a light detection apparatus that is optically isolated from the LEDs to sample light levels during a time in which the LEDs are deactivated and during a time in which the LEDs are activated. The light level when the LEDs are deactivated is an indication of the ambient light levels within the surrounding area of the lighting apparatus. The light level when the LEDs are activated is an indication of the ambient light levels combined with any light generated by the LEDs that is reflected onto the light detection apparatus. By comparing these light levels, the controller can determine the level of light attributable to reflected light from the LEDs.10-18-2012
20100253229LUMINAIRE AND A METHOD FOR CONTROLLING A LUMINAIRE - This invention relates to a luminaire comprising an OLED device, where a light detecting function of the OLED device is employed for transmitting light setting commands to the luminaire from a remote position by means of a control light signal, which carries command information. The control light signal has a header portion, which can be recognized by the luminaire and makes it ready to receive a command, and a following control command portion.10-07-2010
20100327756Arrangement for controlling light emitting diodes - In a circuit arrangement for controlling light emitting diodes (LEDs), which are combined in an indicating table, including a voltage supply, at least one driver which is connected to the voltage supply and has current outputs by way of which current can be supplied to the LEDs as well as at least one control input via which the current being supplied to the LEDs is controllable, a control element is provided by which the number of the LEDs to which current has to be supplied at the same time can be determined and a signal indicative of the number determined can be supplied to the control input of the driver for assisting in controlling the power supply to the LEDs.12-30-2010
20100327755COLOR CONTROLLED LIGHT SOURCE AND A METHOD FOR CONTROLLING COLOR GENERATION IN A LIGHT SOURCE - This invention relates to a color controlled light source comprising a plurality of colored light elements, and a plurality of (filtered) photo detectors, having different spectral characteristics covering all or most of the total spectrum of the light elements. The (filtered) photo detectors detect the light output of the light source, and generate corresponding detection signals. The light source further has a color control unit for generating driving signals to the light elements on the basis of the detection signals and a predetermined target color point of the light output of the light source, and a modulator for individual signature modulation of the driving signal to each one of said light elements. A corresponding demodulator is provided for demodulation of the detection signals and extraction, from each detection signal, of actual values of the light outputs of the light elements. The color control unit has means for determining the spectral output of each light element on basis of the actual values, means for determining an actual color point from said spectral outputs of all light elements, and means for comparing said target color point with said actual color point and, if there is a difference, adjusting said driving signals in order to minimize the difference.12-30-2010
20080297054White Light Luminaire with Adjustable Correlated Colour Temperature - The present invention provides a luminaire system and method for creating white light having a desired colour temperature. The system comprises one or more white light light-emitting elements for generating white light having a particular colour temperature. The system further comprises one or more first colour light-emitting elements and one or more second colour light-emitting elements. The luminaire system mixes the coloured light generated by the first and second colour light-emitting elements with the white light of a particular colour temperature, in order to create white light having a desired correlated colour temperature.12-04-2008
20120268018SWITCH ACTUATED CIRCUITS - A trigger circuit (10-25-2012
20120268016LIGHT EMITTING DEVICE - A light emitting device including a light emitting diode having a semiconductor body that generates electromagnetic radiation; a converter element downstream of the first light emitting diode which converts at least part of the electromagnetic radiation into first color light; a second light emitting diode having a semiconductor body that generates light of the first color; a radiation exit area from which the first color light emerges; and a drive circuit operating the second light emitting diode, wherein the converter element contains at least one luminescence conversion material that emits the first color light, as the operating duration of the first light emitting diode increases, intensity of the first color light emitted by the converter element decreases, the drive circuit controls the second light emitting diode dependent on at least one of measurement values: intensity of the first color light emitted by the converter element, temperature of the converter element, operating duration of the first light emitting diode, and color locus of the light emerging from the radiation exit area.10-25-2012
20120268017SWITCH-ACTUATED ARRANGEMENTS - An article incorporating a light or sound source (10-25-2012
20120319594LIGHTING APPARATUS AND CONTROL METHOD THEREOF - A lighting apparatus includes a light source to generate light, a light emitting mode selection unit to select one light emitting mode from among a plurality of light emitting modes including a strobe light mode implemented by temporarily switching the light source on and a continuous light mode implemented by continuously switching the light source on, and a control unit to control switching-on of the light source to implement the light emitting mode selected through the light emitting mode selection unit. Therethrough, a plurality of lighting apparatuses can be connected, and each of the plurality of lighting apparatuses can be operated in independent light emitting modes, when the plurality of lighting apparatuses are connected, to produce various lighting environments.12-20-2012
20120319595Separable, keyed electrical/electronic modules for mating to LED lighting assemblies - An LED lighting element comprised of at least two pieces designed for use with legacy lighting fixtures having a separable transformer and lighting element to improve efficacy and economy of LED lighting. In addition, the assembly can be provided with intelligent electronics for wireless control, operation and monitoring and/or with a battery for operation during power outages and/or as a warning system for the hearing impaired by stroboscopically flashing the LED lights and/or as sensing elements which cause activation due to some other sensed stimulus.12-20-2012
20120319593Lighting Device with Switchable Day/Night Illumination Mode - The present invention relates to a lighting device with switchable day/night illumination mode, comprising: a main controlling unit, a driving unit, a lighting unit, a light filtering unit, an illumination mode switching unit, and a power management unit, wherein the lighting unit is coupled to the driving unit and has a plurality of light-emitting devices, moreover, the main controlling unit is used for controlling the driving unit, so as to drive the lighting unit output a visible light; In addition, the illumination mode switching unit is used for controlling the light filtering unit to show and cover the light-emitting surface of the lighting unit, so as to filter the visible light and make the visible light become a visible light with a specific wavelength; wherein the visible light with specific wavelength causes the smallest excitation to human sympathetic; Thus, using the visible light with specific wavelength as illumination light when night can not only assist users in reading, but also avoid from exciting users' sympathetic and causing melatonin suppression.12-20-2012
20110210671FLASHING LIGHT MODULE FOR A TRAFFIC SAFETY CONE - Flashing light module for a traffic safety cone has multiple stacked arrays of LED lights providing 360-degree visibility around the cone. The LED arrays are mounted onto a battery container, and a transparent or translucent housing covers the arrays and mounts onto the battery container to provide a water-tight seal for the enclosed electronics. The battery container fits into the upper opening in a truncated traffic safety cone. The LED light arrays have a variable flash rate. Optionally, an ambient light sensor is used to control the intensity of the light produced by the LED lights.09-01-2011
20120081011Software Control of LED Illumination Output for Improved Yield and Latitude - The present application discloses methods and systems for calibrating a scanning system. In one embodiment, the calibration method determines a dark level of at least one pixel, determines a maximum white level for at least one pixel and adjusts the current of an illumination source based upon an output of an analog to digital converter. In another embodiment, the scanning system has a circuit for dynamically adjusting the output of an illumination source. The circuit has a pulse width modulated signal generator for generating a pulse width modulated signal and a driver for receiving the pulse width modulated signal and causing current to the illumination source to be modulated based on the pulse width modulated signal.04-05-2012
20100231131LIGHT ARRAY MAINTENANCE SYSTEM AND METHOD - A lighting system includes a plurality of LED lights having at least two different color LED lights. A controller is coupled to the LED lights for independently controlling the intensity of sets of different color LED lights. A program stored on a storage device is operable on the controller to control the intensity of each of the different sets of different color LED lights to produce light representative of color and intensity changes of outdoor daylight conditions.09-16-2010
20110260626AMBIENCE LIGHTING SYSTEM FOR A DISPLAY DEVICE AND A METHOD OF OPERATING SUCH AN AMBIENCE LIGHTING SYSTEM - This invention relates to an ambience lighting system for a display device, where light sources are mounted at the periphery or at the rear side of the display device for emitting an ambience light onto a wall behind the display device. An input means receives color information indicating the color of the wall. A processor then adjusts the color of the emitted ambience light to the received color information of the wall such that the light reflected from the wall towards a viewing area of the display device matches the screen colors of the display device.10-27-2011
20130009552MOVABLE ILLUMINANCE SENSORS FOR FIXTURE LIGHT SOURCES - A lighting system including fixture lamps, e.g., ceiling mounted, and movable light sources, e.g., task lamps. The task lamps include illuminance sensors arranged to detect ambient light including light emitted by one or more fixture lamps and available daylight. Control data is generated based at least in part on the illuminance data. The resulting control data is transmitted from the task lamp to a fixture lamp and a window system so that it can be used to control the amount of light emitted by the fixture lamp and amount of daylight transmitted through the window system. This arrangement allows daylight harvesting while ensuring that the amount of light provided to workspaces (at which task lamps are located) is satisfactory.01-10-2013
20120319592METHODS OF MONITORING PERFORMANCE OF AN LED LAMP - Operation of an LED as a light source may be temporarily interrupted to facilitate measurement of the light from other LEDs, as well as control of the operation of the LED(s) based thereon.12-20-2012
20120091899LIGHTING DEVICE - A remote control light receiver receives the infrared rays from an infrared LED incorporated in a remote control unit operated by the user, extracts the signal transmitted from the remote control unit, and outputs the extracted signal to a control microcomputer. The carrier frequency of the signal transmitted from the remote control unit is 38 kHz. A PWM control circuit performs PWM control by using an arbitrary PWM frequency within a range of 300 Hz to 3 kHz. By separating the PWM frequency and the frequency (carrier frequency) of the signal for remote control into different bands, the signal for remote control can be restrained from being affected by the turning on of the light source by PWM control, whereby remote control can be prevented from malfunctioning.04-19-2012
20120091898LIGHT-EMITTING APPARATUS - A light-emitting apparatus is electrically connected to a power supply unit. The light-emitting apparatus includes at least one first light-emitting module and a second light-emitting module. The first light-emitting module includes a first light-emitting unit and a first driving circuit, which are electrically connected to each other. The second light-emitting module is electrically connected to the first light-emitting module, and includes a second light-emitting unit and a second driving circuit, which are electrically connected to each other. The first driving circuit adjusts a current passing through the first light-emitting unit in accordance with a first parameter representing the operating state of the second light-emitting module. The second driving circuit adjusts a bypass current bypassing the second light-emitting unit in accordance with a second parameter representing the lighting state of the light-emitting apparatus.04-19-2012
20100181921Apparatus and method for driving backlight unit - The present invention is directed to a drive apparatus for a backlight unit (07-22-2010
20130009551Luminance Control for Illumination Devices - An illumination device is provided having one or more illumination LEDs configured to provide illumination for the device. Along with the illumination LED is a reference LED. The illumination LED provide illumination during normal operation of the device, whereas the reference LED provides a reference illumination, but does not provide illumination during normal operation. A light detector can detect light from the illumination LED and the reference LED, and control circuitry can be used to compare light detected from the reference LED and the illumination LED to adjust a brightness for the device. The light detector can comprise a photo-detector or can comprise an LED, such as one of the illumination LEDs if more than one illumination LED is utilized. A method is also provided for controlling brightness of an illumination device.01-10-2013
20130020948AMBIENT LIGHTING CONTROL METHOD AND AMBIENT LIGHTING CONTROL SYSTEM - The present disclosure provides a method of controlling a human-friendly illumination. The method includes determining a displayed object, using a control module, based on at least one data sensed by a sensor module; receiving, by the control module, from a scene database scene data corresponding to the displayed object; creating, by the control module, illumination control information based on the scene data and sending the illumination control information to a lamp control unit; and outputting, by the lamp control unit, an illumination control signal corresponding to the illumination control information to a lamp module.01-24-2013
20130169165Multi-Phase Lighting Driver - A multi-phase lighting driver.07-04-2013
20130093331LAMPS - An embodiment of the invention provides a lamp comprising a control circuit and a light emitting device. The light emitting device comprises a plurality of light emitting units with different wavelengths. The control circuit calibrates a control signal according to an environment light to adjust a light spectrum of the light emitting device by controlling the luminance of each light emitting unit.04-18-2013
20130093330White Point Adjustment for Multicolor Keyboard Backlight - There are provided systems, devices and methods for operating a light source to match a white point of ambient light. In one embodiment, a light control system is provided. The light control system includes a light source and a light sensor. The light sensor is configured to operate in conjunction with the light source to provide a visual effect. A controller is electrically coupled to the light source and the light sensor and configured to determine the intensity and color of light to which the light sensor is exposed and dynamically adjust the output of the light source to match the determined intensity and color of light to which the light sensor is exposed.04-18-2013
20130113383APPARATUS AND METHODS FOR IMPROVING ILLUMINATION UNIFORMITY - Methods for improving illumination uniformity of illuminated areas (05-09-2013
20130147367LIGHTING CONTROL SYSTEM - A control system controls the operation of at least a first and a second independently controllable LED light member. The control system includes a frame member on which a plurality of electrical components can be mounted, and at least one input port for receiving at least one of a power source and a command signal source capable of sending a command signal to at least one of the first and second LED light members. A first driver member is provided for conducting power to deliver conditioned DC power to the first LED member. A first driver to frame connector removably couples the first driver member to the frame member. A second driver member conditions power to deliver conditioned DC power to the second LED member, and a second driver to frame connector removably couples the first driver member to the frame member. A first external output port is coupled to the first driver, and a second external output port coupled to the second driver. A first multi-channel electrical conductor is coupled to the first external output port for conducting conditioned DC current to the first LED light member; and a second multi-channel electrical conductor conducts conditioned DC current to the second LED light member.06-13-2013
20130147366System for and method of commissioning lighting devices - A lighting system for and method of commissioning LED light fixtures is disclosed. The LED light fixtures include a controller unit that is programed with lighting firmware and an on-board light sensor that is responsive to visible light signals from a light source. In operation, the light sensor is irradiated visible light signals and/or visible light sequences that instruct the LED light fixture via the controller unit to join a group, be locked into a group, run lighting programs and/or become un-locked from a group.06-13-2013
20100283393LIGHT CONTROL SYSTEM AND METHOD FOR AUTOMATICALLY RENDERING A LIGHTING ATMOSPHERE - The invention relates to the automatic rendering of a lighting scene with a lighting system, particularly the control of the rendering. A basic idea of the invention is to perform rendering of a lighting scene by decomposing a lighting atmosphere to be rendered in elementary light effects, to classify the elementary light effects, and to coordinate the realisation of the classified light effects with the lighting system. An 5 embodiment of the invention provides a light control system (11-11-2010
20100308737AMBIENT LIGHT COMPENSATION SENSOR AND PROCEDURE - The present invention relates to a solid-state based light source, a corresponding circuitry and a method of emitting light, including one or more light source elements for generating light, a first sensor for receiving light emitted by the light source elements and ambient light and for generating a first sensor signal (S12-09-2010
20120274220DISPLAY LED UNIT AND METHOD FOR CONTROLLING DISPLAY LEDS - There is provided a display LED unit including at least one light emitting diode having a first and a second operating mode. The LED is operated in the forward mode in a first operating mode and a light signal is emitted in dependence on the forward voltage applied to the LED. The LED is operated in the reverse mode with a reverse voltage in a second operating mode and a voltage signal is output in dependence on the ambient light. The display LED unit further comprises a control unit for controlling the light emission of the LED in the first operating mode in dependence on the ambient light detected by the LED in the second operating mode.11-01-2012
20120274219Programmable Landscape Lighting Controller with Self-Diagnostic Capabilities and Fail Safe Features - A lighting controller includes a housing and a power transformer mounted in the housing for stepping down an inputted AC power signal at a first higher voltage to at least one output AC power signal at a second lower voltage for powering a plurality of light fixtures. The controller further includes a switching device that can be closed and opened to connect and disconnect a primary winding of the power transformer to a source of AC power that can provide the inputted AC power signal. At least one wire connection terminal is connected to a secondary winding of the power transformer. A face pack is removably mounted in the housing and is operatively connected to the source of AC power and the switching device. The face pack includes a display, at least one manually actuable input device, a processor, a memory operatively connected to the processor, and an operational program stored in the memory. The operational program is executable by the processor for allowing a user to enter ON and OFF times via the manually actuable input device and for closing and opening the switching device in accordance therewith. The processor can detect and display the current draw, and can detect overheat and current overload conditions, and disconnect the power transformer from the source of AC power in response to the same.11-01-2012
20120274218Smart Illumination for Electronic Devices - A handheld device includes control elements, an illumination element operable to illuminate the control elements, a light sensor that detects an illumination level, and a sensor that detects whether or not the device is being held. When the illumination level is below an ambient light threshold and the device is being held, the illumination element and activates. However, when either the illumination level is not below the ambient light threshold or the handheld electronic device is not being held, the illumination element deactivates and/or does not activate. In some implementations, the sensor includes a capacitance touch switch and/or a resistance touch switch that detects contact with skin, a gyroscope and/or an accelerometer that detects movement of the handheld device, a pressure sensors that detects exertion of pressure on the handheld device, and/or an additional light sensor that detects when a portion of the handheld electronic device is covered.11-01-2012
20100315010CONSISTENT COLOUR CALIBRATION IN LED-BASED LIGHTING INFRASTRUCTURE - The present invention relates to colour generation in an indoor or outdoor lighting device, and more particularly to a control method which provides spatially consistent colour control of a lighting device designed for use in, e.g., spatially extended premises or environments containing obstacles, and thus including multiple light sensors to allow efficient control. Colour consistency is achieved by an arrangement where light of one or more of the light sources impinges on more than one light sensor. If constructional detector features, such as filter characteristics, coincide, then these sensors should in principle, after the appropriate processing, report identical colour points of the light source under consideration. Indeed, colour is a path-independent property of light, and this is the basis for a mutual calibration scheme of the detectors according to the invention. The calibration scheme is part of a control algorithm and is intended for use in place of a conventional control algorithm, either intermittently or permanently.12-16-2010
20100315009Apparatus and Methods for Deterring Predators - A lighting fixture for deterring predation has a case containing a battery and one or more sources of illumination. A controller acts to cause intermittent flashing of the sources of illumination because the apparent motion deters predators. The case may have a bracket adapted for attachment to a post.12-16-2010
20100315008Storm Door and Entrance Door Hardware Illumination System - Certain people may at times find that life events cause absences from their residence. Due to the configuration of a residence entrance there are times of darkness when there is low or no ambient light to illuminate the entrance door hardware. Some people would not leave their porch light on for several hours. Some people may be uncomfortable with leaving the standard porch light on during their absence to avoid the expense of the utility power used by the lighting. A situation for the need to illuminate the hardware may include the unexpected prolonged time of being away from home. The present invention is a sustainable option to illuminate the storm door and exterior entrance door of a residence. This invention provides illumination of the doors hardware on demand.12-16-2010
20100315007 COLOR CONTROLLED LIGHT SOURCE AND A METHOD FOR CONTROLLING COLOR GENERATION IN A LIGHT SOURCE - This invention relates to a color controlled light source comprising a plurality of colored light elements; a detector for detecting the light output of the light source and generating a detection signal; and a color control unit for generating driving signals to said light elements on the basis of said detection signal and a predetermined target color point of the light output of the light source. In order to enable detection of contributions from individual light elements to the light output of the light source, the light source further comprises a modulator for individual signature modulation of the driving signal to each one of said light elements; and a corresponding demodulator for demodulation of said detection signal and generation of actual, i.e. measured, values of the output of the individual light elements. The color control unit determines nominal values of the light output of each light element for obtaining said target color point, and compares the actual values with the nominal values. If there is a difference, it adjusts the driving signals in order to minimize the difference.12-16-2010
20110291571INTELLIGENT ENERGY-SAVING LAMP - An intelligent energy-saving lamp includes a power source circuit, a main control circuit, a lighting circuit, and an infrared sensor circuit. The outgoing line of the power source circuit is connected to the incoming line of the main control circuit. The outgoing line of the main control circuit is connected to the incoming line of the lighting circuit. The infrared sensor circuit regulates the lighting circuit via the main control circuit. More specifically, the infrared sensor circuit senses the presence or absence of a person in the lighting area and instructs the main control circuit to regulate the lighting circuit accordingly, thereby saving energy. When people leave the lighting area, the lighting circuit enters the energy-saving mode and is prevented from working at maximum power. When people return, however, normal lighting resumes. Power consumption of the lamp in the energy-saving mode is only 20% of that for normal lighting.12-01-2011
20130187552Light Harvesting - The current application is directed to control of lighting systems and utilization of ambient light levels for such control. One implementation comprises one or more lighting fixtures installed in a structure, at least one ambient light information source configured to provide brightness information of ambient light of the structure, and a controller configured to maintain a brightness level of an interior portion of the structure substantially the same as a brightness level of an exterior portion of the structure by controlling outputs of the lighting fixtures in response to the brightness information of the ambient light. The interior portion of the structure may include an entrance portion of the structure. The controller may be further configured to gradually reduce brightness levels of the outputs of the lighting fixtures from the entrance portion towards a center of the structure.07-25-2013
20130200808SENSOR-CONTROLLED SYSTEM AND METHOD FOR ELECTRONIC APPARATUS - A sensor-controlled system for an electronic apparatus is provided. The electronic apparatus includes at least one light emitting unit. The at least one light emitting unit operates at an emission state and a non-emission state alternately. The sensor-controlled system includes at least one sensor unit and at least one control unit. The at least one sensor unit is arranged for sensing surrounding luminance to generate a sensing signal during a period in which the at least one light emitting unit operates at the non-emission state. The at least one control unit is coupled to the at least one sensor unit, and is arranged for controlling luminous intensity of the at least one light emitting unit according to the sensing signal.08-08-2013
20120062128LIGHT DIMMING CONTROL - A power supply to an LED-based street or area light is operated to provide a dimming control signal, which is in turn processed by a circuit to produce 0-10 V DC, pulse width modulated (PWM) signals, or any other suitable signal that can variably control LEDs within the light. The on/off power interruptions could be provided, for example, from a photoelectric control, a timer circuit, or a pre-programmed or manually controlled timer/contactor. The signal to the on/off device could also or instead be initiated by an RF or power line carrier signal to cause the power interruptions.03-15-2012
20120086344System and Method for Calibrating Backlight Devices - A system and method for controlling the backlight of a liquid crystal display (LCD) to account for ambient light penetration through the LCD stack and into the backlight cavity. A first light sensing device may be placed to measure the ambient light while a second light sensing device may be placed within the backlight cavity to measure the backlight luminance. A desired display luminance (based on the ambient light) can be converted to a desired backlight luminance. A software driver or microprocessor may drive the LCD backlight to meet the desired backlight luminance. A calibration can be performed to create and store correction factors for the second light sensing device when high ambient light levels create disruptions in the data for the second light sensing device. The correction factors may be used to accurately control the backlight levels and may be based upon incoming data from the first light sensing device.04-12-2012
20130207551ILLUMINATING DEVICE - An illumination device that is operable while being transported and that can be placed, or is placed, in an object that can be opened and closed again. The illumination device comprises a first light source, an electric energy storage device, and a switch device that comprises a control unit including a sensor unit with which a first switching unit is transferable from an open switching state into a closed switching state. The first light source is suppliable with electric power from the electric energy storage device when a first sensor is touched and/or when said first sensor detects a motion. The sensor unit comprises a second sensor that at least detects if the object is open or closed. A second switching unit is transferable from an open switching state into a closed switching state in which the first light source and/or a second light source is/are supplied with electric power.08-15-2013
20130207552INTEGRAL TROFFER MOTION DETECTOR - A sensor system (08-15-2013

Patent applications in class Plural load devices

Patent applications in all subclasses Plural load devices