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TEMPERATURE CONTROL

Subclass of:

353 - Optics: image projectors

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
353057000 Blower 175
353054000 Liquid coolant 15
353056000 Heat resistant or insulating material 6
353055000 Heat filter 1
20080297732LIGHT SOURCE UNIT AND IMAGE PROJECTION APPARATUS HAVING THE SAME - A light source unit and an image projection apparatus are provided. The light source unit includes: a light source part including a light source and a reflective member which reflects light emitted from the light source; and an infrared ray dividing part which is provided corresponding to a shape of the reflective member, is spaced apart from the reflective member, and includes a blocking part to block part of infrared rays generated from the light source and passing through the reflective member and a passing part having an opening formed through the blocking part. The image projection apparatus includes the light source unit and a casing accommodating the light source unit.12-04-2008
Entries
DocumentTitleDate
20090219492DETECTING DEVICE - A detection device is mounted in a projector for detecting relations between an object and the projector. The detection device includes a detecting switch, a connector and a detecting circuit. When the object is placed into the detecting switch, the detecting switch is in an off state. When the object is withdrawn from the detecting switch, the detecting switch is in an on state. The connector is electrically connected to the detecting switch. The detecting circuit is electrically connected to the connector for activating the projector to be operated in a first mode in response to the off state of the detecting switch and activating the projector to be operated in a second mode in response to the on state of the detecting switch. The first mode and the second mode are associated with the temperature inside the projector.09-03-2009
20130077058ELECTRO-OPTIC MODULE AND ELECTRONIC APPARATUS - A first light-transmissive plate is provided on an opposite surface of a first substrate of an electro-optic panel to a second substrate. The first light-transmissive plate is smaller than the first substrate, and an end portion of the first substrate is exposed from the first light-transmissive plate. In addition, a heat radiation member made of a metal material is provided so as to be overlapped with the exposed portion from the first light-transmissive plate of the first substrate.03-28-2013
20090122268BLIND FOR A PROJECTOR05-14-2009
20130027672IMAGE PROJECTING DEVICE - An image projecting device for projecting an image on a screen is provided. The image projecting device includes a toppling detecting part that detects a toppling of the image projecting device; a toppling direction detecting part that detects a direction in which the image projecting device topples; and a controlling part that controls the image projecting device such that the image projecting device continues to project the image if the toppling detecting part detects the toppling of the image projecting device and the toppling direction detected by the toppling direction detecting part is directed toward the screen, while the image projecting device stops projecting the image if the toppling direction detected by the toppling direction detecting part is directed away from the screen.01-31-2013
20130070210COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND RECORDING MEDIUM STORING COMMUNICATION CONTROL PROGRAM - A communication apparatus performs specific operation before turning off the power of the communication apparatus. When a request for communication task is detected, the communication apparatus determines whether execution of the communication task can be extended at a later time. When execution of the communication task can be extended, the communication apparatus extends execution of the communication task to a later time. When an instruction for turning off the power of the communication apparatus is received, the communication apparatus executes the requested communication task while performing the specific operation.03-21-2013
20130050657PROJECTOR - A projector includes a housing, an image projection unit, and a plurality of connection ports including a power connection port. The housing has a top face, and a first face and a second face adjacent to each other, and a light projection port on the top face. The image projection unit includes an optical system to project light corresponding to image data, via the light projection port disposed on the top face, in an upward oblique direction with respect to the first face. The plurality of connection ports is disposed on the second face. The power connection port is disposed at a position in the second face closest to the first face side.02-28-2013
20130114047POSITIONING INTERFACES FOR PROJECTION DISPLAY DEVICES - Described herein are devices that provide projection-type video output in a portable and flexible design. The design includes a projection chamber, a base, and an interface that permits relative positioning between the projection chamber and base. The base maintains the position of the display device. The projection chamber includes components responsible for the production of images based on received video data and components responsible for the projection of those images. Relative pointing between the projection chamber and base allows the projection chamber to be pointed—and an output projected image to be positioned—with minimal effort.05-09-2013
20100103382LIGHT SOURCE DEVICE AND PROJECTOR - A light source device includes: an arc tube having a light emission portion; a first reflection mirror having a substantially concave surface for reflecting light emitted from the light emission portion; and a container which accommodates the arc tube and the first reflection mirror, wherein the container has a duct unit disposed above the arc tube. The duct unit includes a first opening open to the arc tube and disposed at a position shifted toward the traveling direction side from an opening end of the first reflection mirror, a wall portion which forms the edge of the first opening on the side opposite to the traveling direction side as a final end of the duct unit, and an inclined portion disposed in the vicinity of the edge of the first opening on the traveling direction side to bend the flowing direction of the cooling air toward the surface opposite to the surface having the first opening.04-29-2010
20090040468IMAGE PROJECTION APPARATUS - The image projection apparatus includes a temperature detector that detects a temperature inside of the apparatus, and a controller that performs a protection operation when the temperature detected by the temperature detector is higher than a predetermined temperature. The controller measures an elapsed time from when a power of the apparatus is turned on, and changes the predetermined temperature in accordance with the elapsed time. This apparatus can avoid mistaken activation or inactivation of a protection function at the time of re-lighting of the light source due to the influence of the residual heat after the light source is turned off.02-12-2009
20130057835THERMAL MANAGEMENT FOR HANDHELD PROJECTORS - A handheld device (03-07-2013
20110025984PROJECTOR - A projector includes: spatial light modulation devices; and a cooling duct configured to flow a cooling air for sequentially cooling the spatial light modulation devices, the cooling duct has a first flow path formed by portions including the light entrance surface of at least one of the spatial light modulation devices for the respective color lights, a second flow path formed by portions including the light exit surface of the corresponding spatial light modulation device, and a junction area where the cooling air flowing through the first flow path and the cooling air flowing through the second flow path join each other, and the junction area is disposed at a downstream position of the cooling air with respect to the spatial light modulation device provided for a predetermined color light whose light amount is the maximum in the respective color lights that enter the light entrance surface.02-03-2011
20100171935IMAGE DISPLAY DEVICE - LED modules 07-08-2010
20110279785PROJECTION DISPLAY DEVICE - A projection display device is provided with a main body cabinet including an air inlet; a light source unit which is disposed in the main body cabinet; and a cooling unit which is disposed adjacent to the light source unit, and cools the light source unit. In this arrangement, air drawn to an inside of the main body cabinet through the air inlet is drawn to an inside of the cooling unit, and is supplied to the light source unit. The cooling unit is provided with a filter section which removes unwanted matters from the air drawn to the inside of the cooling unit.11-17-2011
20110279783OPTICAL ENGINE FOR PROJECTOR - An optical engine includes a chassis, a light source module, a light combination module, a light-homogenizing module and a projection lens module. The chassis has different positioning parts, and a part of members of each of the light source module, light combination module, light-homogenizing module, and projection lens module are inserted into a corresponding positioning parts of the chassis to achieve accurate positioning.11-17-2011
20110279784PROJECTOR - A projector is provided with a radiation source adapted to radiate an electromagnetic wave during an operation and an exterior housing adapted to house the radiation source inside, wherein the exterior housing includes a first housing made of synthetic resin, and a second housing including a shield material adapted to block the electromagnetic wave, and disposed at a position for covering the radiation source in a plan view.11-17-2011
20110279786PROJECTION DISPLAY DEVICE - A projection display device is provided with a cooling section which supplies air drawn from an outside of the projection display device to a member to be cooled which is disposed in a main body cabinet to cool the member to be cooled; a filter section which removes unwanted matters from air drawn to the cooling section; and a filter housing portion which detachably houses the filter section therein. In this arrangement, the main body cabinet is formed with an opening which passes the filter section therethrough in detaching the filter section from the filter housing portion. Further, the filter housing portion is formed with a first space on an air flow-in side of the filter section. Furthermore, the opening has at least such a size that the first space communicates with the outside through the opening.11-17-2011
20110069283IMAGE PROJECTOR AND METHOD AND PROGRAM FOR CONTROLLING THE OPERATION OF THE PROJECTOR - An image projector apparatus includes a cooler having a variable capability to cool a light source, a commanding section which gives a command to terminate a lighting operation of the light source, a selecting section responsive to the command given by the projection light processor for selecting a cooling capability of the cooler, and a control section for causing the cooler to cool the light source with the cooling capability selected by the selecting section.03-24-2011
20110299043FILTER UNIT AND VIDEO PROJECTOR - A filter unit includes an air filter, which captures dust from intake air, and a cleaning unit, which automatically cleans the air filter. The cleaning unit includes a rotation brush, which removes dust from the air filter, and a dust box, which extends parallel to the rotation brush. The dust box includes a dust inlet that opens toward the rotation brush and receives dust from the rotation brush. The dust box is removable from the filter unit.12-08-2011
20110285970PROJECTOR - A projector includes: a reflection type light modulation device which modulates received light according to image information and reflects the modulated light; a reflection type polarization plate which separates both of light supplied to the reflection type light modulation device and light modulated by the reflection type light modulation device into respective polarized lights; and a temperature measuring member which measures the temperature of the reflection type light modulation device, wherein the temperature measuring member is disposed in the rear side of the reflection type light modulation device.11-24-2011
20110299041AIR FILTER DEVICE AND VIDEO PROJECTOR USING AIR FILTER DEVICE - An air filter device including a base, air filter, and self-propelled cleaning unit. The base includes a frame defining an opening through which air is drawn. The air filter captures dust from the air passing through the opening. The air filter is fastened to the frame by a fastener and includes an filter surface. The self-propelled cleaning unit is coupled to the base, moves along the filter surface when cleaning the first air filter, and is located at a standby position on the frame of the base when in a non-cleaning state. The self-propelled cleaning unit, which includes a cleaning brush, a dust box, and a motor, lies away from the entire filter surface of the first air filter and the fastener when located at the standby position.12-08-2011
20110299044PROJECTION APPARATUS - A projection apparatus is provided. The projection apparatus includes a light-emitting unit array, an optical sensor, and a control unit. The light-emitting unit array is for emitting an image beam. The optical sensor is for detecting electromagnetic waves so as to generate a signal. The control unit is electrically coupled to the light-emitting unit array and the optical sensor for controlling emission of the light-emitting unit array according to the signal from the optical sensor.12-08-2011
20110299042AIR FILTER DEVICE AND VIDEO PROJECTOR USING AIR FILTER DEVICE - An air filter device for a video projector, which includes a light source lamp having an optical axis and which is used in a state in which the optical axis of the light source lamp is horizontal. The air filter device includes an air filter and a cleaner that cleans the air filter. The cleaner includes a rotation brush rotated about a rotation axis to remove dust from the air filter while moving along an upstream side of the air filter. The rotation brush moves in a direction parallel to the optical axis of the light source lamp. A dust box receives dust removed from the rotation brush. The dust box includes an elongated container, which extends parallel to the rotation axis of the rotation brush, and a dust inlet, which opens toward the rotation brush to receive the dust from the rotation brush.12-08-2011
20110299040AIR FILTER DEVICE AND VIDEO PROJECTOR USING AIR FILTER DEVICE - An air filter device including a first air filter that captures dust from intake air and includes a rim, a filtering surface surrounded by the rim, and a grid dividing the filtering surface into a plurality of sections. A base includes an opening, through which air is drawn, and a frame, which surrounds the opening. The first air filter is coupled to the frame at an upstream side of the opening. A cleaner includes a rotation brush that moves along an upstream surface of the first air filter while rotating to remove dust from the first air filter. A support contacts and supports the rim and the frame at a downstream side of the first air filter against pressing forced applied to the first air filter by the rotation brush.12-08-2011
20110216286ILLUMINATION DEVICE AND PROJECTION DISPLAY DEVICE - An illumination device includes: a plurality of light sources which emits light; a plurality of optical fibers into which the light from the light sources is entered; a bundle portion which bundles together output end portions of the plurality of optical fibers; and a cooling system which cools down at least a light output end plane of the bundle portion.09-08-2011
20100002198PORTABLE ELECTRONIC DEVICE WITH MICRO-PROJECTING MODULE - A portable electronic device with micro-projecting module includes a shell body, a micro-projecting module, a heat-conducting plate and a supporting stand. The shell body has a front lateral plate and a bottom lateral plate adjoining the front lateral plate. The front lateral plate has a front through hole, while the bottom lateral plate has a bottom through hole. The micro-projecting module is arranged in the shell body and has a lens exposing to an outside of the shell body from the front through hole. The heat-conducting plate is arranged in the shell body and is positioned between the micro-projecting module and the bottom through hole. In the meantime, the heat-conducting plate has a heat-absorbing face contacting the micro-projecting module and a heat-dissipating face abutted against the bottom through hole. The supporting stand may be pivoted onto the heat-dissipating face with a closing position substantially parallel to the heat-dissipating face after a rotation and a developing position by rotating a predetermined angle with respect to the heat-dissipating face.01-07-2010
20100039623HEAT-DISSIPATING STRUCTURE OF HOUSING AND PROJECTION DEVICE HAVING SAME - A heat-dissipating structure of a housing is disclosed. The housing defines an opening that is embedded with the heat-dissipating structure. The heat-dissipating structure includes a number of metal slats, a number of connection members, and a supporting frame. The metal slats are spaced and angled to form air channels and fixed to each other via the connection members. The combination of the metal slats and connection members are supported by the supporting frame.02-18-2010
20100225888PROJECTOR - A projector configured to modulate a luminous flux emitted from a light source in accordance with image information, forms an image light, and projects the image light, includes: an exterior housing having an intake vent for taking in the ambient air, and an insertion slot communicating with the intake vent; an anti-dust filter being installed in the exterior housing so as to be mountable in and removable from the exterior housing through the insertion slot, prevents dust from intruding into the exterior housing from the intake vent; and a cover configured so as to be switchable between an open condition in which it exposes the insertion slot, and a closed condition in which it covers the insertion slot.09-09-2010
20110216285Light Source Device and Projector - Alight source device includes: a light emission portion; a cooling channel configured to guide air toward the light emission portion; a rotational member disposed within the cooling channel in such a condition as to be rotatable around a predetermined rotation shaft by gravity, and configured to switch the cooling channel to a first channel branched from the cooling channel in the downstream when the light source device is set in a first position, and to a second channel different from the first channel when the light source device is set in a second position, wherein a position of the center of gravity of the rotational member is located at a position shifted from the center between the rotation shaft and an end of the rotational member away from the rotation shaft toward the end.09-08-2011
20090273761COOLING SYSTEM FOR DISPLAY DEVICE - Systems and methods for a cooling system of a display device are provided herein. One exemplary image display device includes a light source and an image-generation device for receiving light from the light source and generating an image. The image display device also includes a projection lens for projecting the image from the image-generation device. The image display device also includes a body for housing the light source, the image generation device, and the projection lens. The image display device also includes a cooling system coupled to the body. The cooling system may be positionable in a first position and a second position based on a configuration of the body.11-05-2009
20090290130Light source lamp cooling apparatus and projection display apparatus - A light source lamp cooling apparatus according to the present invention includes: diaphragm air compressor (11-26-2009
20090002641COLOR TEMPERATURE ADJUSTING APPARATUS AND METHOD THEREOF - A projector includes a projecting lens configured for projecting an image, a controlling unit configured for analyzing a color temperature of the image, and an adjusting unit electrically connected to the controlling unit. The adjusting unit adjusts the color temperature of the image to be identical to a preset color temperature of the projector by changing transmittance of light through the adjusting unit.01-01-2009
20090002642Housing Assembly and Projection Device Having the Same - A housing assembly which comprises a primary housing, a secondary housing and a moving mechanism is provided. The primary housing has a first external contour and an opening disposed on the primary housing. The secondary housing has a second external contour. The moving mechanism connects the secondary housing to the primary housing so that the secondary housing can move between the sheltering position and the open position. When the secondary housing is located in the open position, the primary housing can define a space within the secondary housing. When the secondary housing is located in the sheltering position, the secondary housing is adapted to at least partially cover the opening. The first external contour and the second external contour together form a third external contour, which has substantially the same or different contour as the first external contour.01-01-2009
20090033879PROJECTOR APPARATUS AND CONTROL METHOD FOR PROJECTOR APPARATUS - According to one embodiment, a projector apparatus comprises an input detector configured to detect input of an image signal, a light source, a modulator configured to modulate light emitted from the light source, a cooling unit configured to cool the light source and the modulator, a power controller configured to control a driving power of the light source in accordance with a result of detection of the image signal by the input detector, and a projecting unit configured to project the light modulated by the modulator.02-05-2009
20100128229Weather-tight Video Projector with Unattended Operation - An image projector comprises: a LED light source module, a PCB module, a heat sink module, condensing and projecting lenses, and a housing. The printed circuit board (PCB) module further comprises: internal memory for storing video images to be displayed, at least one I/O interface for connection to a host computer for transferring images by either wired or wireless means, a control unit for transferring, storing, and processing images stored in its memory, firmware allowing for unattended operation by automatically looping through stored content, an electronic image forming device for displaying stored images to be projected. The heat sink module is of the natural convection type and is mounted such that ambient air can flow freely around its heat dissipating fins thereby eliminating the need for a fan. The housing encloses all components such that it is suitable for outdoor use.05-27-2010
20110007281PROJECTOR - A projector including a light source, an optical deflection element including a reflective surface, a mounting plate that holds the optical deflection element with a heat conductive member interposed between the optical deflection element and the mounting plate so that the reflective surface faces the light source, and a foreign matter intrusion preventing frame that is provided between the light source and the mounting plate so as to surround the reflective surface, the projector including: a heat receiving portion that is provided so as to surround at least one side of the optical deflection element; a heat radiating portion that is provided on the mounting plate outside the foreign matter intrusion preventing frame; and a heat pipe that includes the heat receiving portion and the heat radiating portion.01-13-2011
20090122269METHODS AND SYSTEMS FOR IMPROVING OPERATION OF A VIDEO PROJECTOR - A method of operating a video device includes determining an operating temperature, determining if the operating temperature is above normal operating temperature for the video projector, and setting the video projector in economy mode if the operating temperature is above the normal operating temperature.05-14-2009
20080316435IMAGE PROJECTOR AND METHOD AND PROGRAM FOR CONTROLLING THE OPERATION OF THE PROJECTOR - An image projector apparatus comprising a cooler (12-25-2008
20090086171PROJECTOR HAVING DIGITAL MICROMIRROR DEVICE WITH THERMOELECTRIC COOLING CHIP ATTACHED THERETO - A projector includes a digital micromirror device, a heat sink attached on the digital micromirror device and a thermoelectric cooling chip sandwiched between the digital micromirror device and the heat sink. The thermoelectric cooling chip includes a cold side contacting with the digital micromirror device and a hot side contacting with the heat sink.04-02-2009
20090051880PROJECTOR AND DISPLAY DEVICE - A projector includes a transmissive heat exchange element having a transparent thermoelectric conversion layer consisting mainly of an oxide and an electrode for supplying the transparent thermoelectric conversion layer with a current, and an optical element, and cooling or heating of the optical element is performed using the transmissive heat exchange element.02-26-2009
20090096996HEAT RADIATION STRUCTURE FOR PORTABLE PROJECTOR - A heat radiation structure for a portable micro projector that enables efficient radiation of heat generated therein. A projector module irradiates light of high intensity using a lamp to project an image to an external screen. A thermally conductive plate having a plate-like shape, the projector module being attached to one surface of the thermally conductive plate to transfer heat generated in the projector module. A heat radiation case to which the thermally conductive plate to which the projector module is attached is coupled therein to emit the heat transferred through the thermally conductive plate outside.04-16-2009
20090213339Projector and optical engine thereof - An optical engine includes a light source system for providing an incident light beam, a reflective light valve, a first case, a projection lens and a second case. The reflective light valve is disposed in the first case for receiving the incident light beam, reflecting and outputting an image light beam or a dumped light beam. The first case provides a first opening located in the light path of the dumped light beam. The projection lens is connected to the first case for receiving and projecting the image light beam to form an image. The second case intercommunicates with the first case via the first opening. The dumped light beam enters the second case through the first opening, and is reflected twice or more inside the second case. Moreover, the inner wall of the second case applies to absorb the energy of the dumped light beam.08-27-2009
20100039624ILLUMINATING DEVICE AND PROJECTOR DEVICE - A projector module adopts a structure having an optical image forming block and an optical block integrated via a locking member. The optical image forming block adopts a structure achieved by disposing an aluminum substrate at which an LED is mounted and a liquid crystal panel in a casing constituted with a plastic material having low thermal conductivity. The locking member is formed by bending a metal sheet through a sheet metal bending process and the locking member is set in surface contact with the substrate. The optical block adopts a structure achieved by disposing a PBS and a reflecting member at the casing constituted with a plastic material having low thermal conductivity with a quarter-wave plate disposed at the boundary of the two members.02-18-2010
20100231866LIGHT SOURCE DEVICE AND PROJECTOR - A light source device, includes: an arc tube having a tube spherical portion containing a pair of electrodes disposed along an illumination axis, and a pair of sealing portions extending from both sides of the tube spherical portion; a reflector having a reflection portion disposed in the vicinity of one of the sealing portions of the arc tube for reflecting light emitted from the arc tube toward an illumination area; and a flow regulating unit including a plurality of projecting portions projecting in a direction approximately along the illumination axis to regulate the flow direction of cooling air, and a fixing portion for fixing the plural projecting portions to one of the sealing portions in the vicinity of the tube spherical portion.09-16-2010
20090033880MOBILE COMMUNICATION TERMINAL HAVING PROJECTOR - A radiation structure of a mobile communication terminal having a projector which rapidly dissipates heat generated from the projector and other elements built into the terminal. The mobile communication terminal includes a projector implementing an image-projection function, and a projector cover, which is composed of a heat conductive material such that at least one inner surface thereof is brought into close contact with the projector so as to dissipate heat generated from the projector to the outside of the terminal.02-05-2009
20110211170Projector apparatus - A filter device includes: first and second filter elements allowing air to pass therethrough; and first and second filter holding members holding the first and second filter elements such that they are linearly connected side by side, the holding members being connected to be foldable in the position where the filter elements are connected.09-01-2011
20110149252Electrohydrodynamic Air Mover Performance - Structures for reducing the effect of charged surfaces near the electrodes on the performance efficiency of an electrohydrodynamic (EHD) device are disclosed. The potential levels on surfaces of an electronic device near the EHD electrodes are varied with respect to a function of the combination of distance from the emitter and the distance from the collector. The potential levels may be constant, may vary in discrete steps, may be continuously variable along the length between the EHD electrodes and beyond the electrodes, and may vary with respect to time.06-23-2011
20110090469PROJECTION DISPLAY DEVICE AND ELECTRONIC DEVICE - A projection display device includes a light source; a light modulating section that modulates light from the light source; a main control section that drives and controls the light source and the light modulating section for operation; a standby control section that performs control in a standby state; a main power source unit that supplies power to the main control section; and a standby power source unit that, in the standby state, shuts off power supply from a commercial power source to the main power source unit and supplies power to the standby control section. In this arrangement, the standby power source unit is disposed on a substrate different from that the main power source unit is disposed on.04-21-2011
20090027626Illumination System Adapted for a Projection Apparatus and Cooling Air Guiding Apparatus Thereof - An illumination system adapted for a projection apparatus is provided. The illumination system comprises a cooling air guiding apparatus, a lamp, and a cooling fan. The cooling air guiding apparatus comprises an air intake device and an adjustment device, while the adjustment device comprises an air-flow adjustment element and an air-flow guiding element. The cooling fan generates a cooling air, which flows from the exterior through the air intake device into the air-flow adjustment element. The air-flow guiding element guides the cooling air in the air-flow adjustment element out of an air-flow adjustment hole towards a specific direction. Since the adjustment device may move relatively to the air intake device, the air-flow adjustment hole is adapted to move from the first position substantially aligned with the opening to the second position constituting a substantial displacement with respect to the opening. The cooling air can cool the lamp no matter what angle the projection apparatus is disposed. As a result, the projection apparatus is allowed to be installed in any desired orientation without restrictions.01-29-2009
20110069282PROJECTOR - A projector includes: a light emitter; a light modulator modulating light from the light emitter; and a projector projecting the image from the light modulator. The light emitter includes a light emitting element and an optical member. The light emitting element is a super luminescent diode having an active layer constituting first and second gain regions sandwiched between first and second cladding layers. The first gain region is tilted in a clockwise direction relative a perpendicular of a first surface of the stacked structure. The second gain region is tilted in a counterclockwise direction relative to a perpendicular of the first surface. As such, the optical member refracts the light respectively emitted from the end surfaces of the first and second gain regions on the second surface side to thereby emit light beams in the same direction.03-24-2011
20100097579LENS MODULE HAVING THERMAL DISSIPATION STRUCTURE AND PROJECTOR USING SAME - A lens module includes a seat, a lens holder and a thermal dissipation structure. The seat includes a base plate and two sidewalls perpendicularly formed on a surface of the base plate. The lens holder is mounted on the seat between the two sidewalls. The thermal dissipation structure is mounted on the seat and thermally conducts with the lens holder for cooling the lens holder.04-22-2010
20100110392Projection Image Display Apparatus - A projection image display apparatus includes: a light source unit configured to be detachably attachable to a main body of the apparatus; a storage unit provided to the light source unit for previously storing therein information that the light source unit is a genuine product; a determination unit verifying the information stored in the storage unit to make a decision on whether the light source unit is the genuine product; and a light source control unit operative in accordance with the decision made by the determination unit to control an output of the light source unit. The determination unit transmits a signal to the storage unit. The storage unit receives and encrypts the signal in accordance with the information and transmits the encrypted signal to the determination unit. The determination unit receives and reconstructs the encrypted signal to verify the information.05-06-2010
20110273674LENS-SHIFTABLE IMAGE PROJECTION APPARATUS - The image projection apparatus projects an image onto a projection surface through a projection optical system including a focus element (11-10-2011
20100066979Projection display device - A projection display device that modulates light on the basis of image information to form an optical image, and that projects the formed optical image, includes: light source devices 03-18-2010
20100195060Light modulator and projection-type display apparatus - A light modulator includes: a holding member having a frame disposed around an opening; and a light modulation panel formed in such a way that the edge thereof is held by the frame and the outer surface of the portion corresponding to the opening is flush with the outer surface of the frame or positioned outside the outer surface of the frame.08-05-2010
20120307212IMAGE DISPLAY APPARATUS - The present invention provides an image display apparatus that inhibits deterioration of image quality caused by an increase in temperature of a laser light source apparatus. The image display apparatus of the present invention has a green color laser light source apparatus, a red color laser light source apparatus, a blue color laser light source apparatus, and a projection mouth in a first case. The first case has a fin on a side surface opposite to a projection mouth of the first case. The fin is provided in an air passage, the fin dissipating heat generated from laser light source apparatuses of each color and transferred via the first case.12-06-2012
20110063582COOLING PUMP UNIT AND PROJECTION DISPLAY APPARATUS INCLUDING THE SAME - Generation of noise is suppressed by solving the problems of crushing and wear of a cushion caused by thermal expansion of a communicating tube. A pump unit includes main pump body 03-17-2011
20120044463EXHAUST PORT SHUTTER APPARATUS AND PROJECTOR - An exhaust port shutter apparatus which is attached to an exhaust port of a projector, includes: a guide section in which a first guide groove is provided; louver boards each having a turning shaft pin, the louver boards in which each turning shaft pin is formed so as to have a length which allows the turning shaft pin to pass through the first guide groove and project to the outside of the guide section; and a cam roller that has a cam groove on a peripheral surface thereof, the cam groove into which each turning shaft pin fits, the cam roller that can reciprocate, by rotation thereof, each turning shaft pin by the cam groove along the first guide groove in a first direction, wherein the louver boards are rotated at a necessary angle as a result of the cam roller being rotated and open and close the exhaust port.02-23-2012
20120002175PROJECTOR AND PROJECTOR CONTROL METHOD - A projector which includes: a light source lamp; a cool down unit which performs a cool down process for the light source lamp; a mode selection unit through which a normal mode for executing the cool down process at the time of power off or a special mode for eliminating the cool down process at the time of power off is selected; and a control unit which controls the light source lamp and the cool down unit based on the result of the mode selection determined through the mode selection unit.01-05-2012
20120002176PROJECTOR WITH HEAT RADIATING CONSTRUCTION - A projector includes a light source unit, a light source side optical system which includes a color wheel and a light guiding unit, a display device, a projection side optical system, a cooling fan, and a projector control unit. An interior of a projector casing is divided into an outlet side spatial compartment which is positioned on an outlet side of the cooling fan and in which the light source unit is disposed and an inlet side spatial compartment which is positioned on an inlet side of the cooling fan. The outlet side spatial compartment is covered thereabove by an upper division board, above which a heat conductive sheet which is formed of an aluminum sheet is disposed. The heat conductive sheet is electrically connected to the projector casing, so that electricity charged in the heat conductive sheet can be discharged.01-05-2012
20080204668Bathroom Projector System and Projector - The present invention relates to a projector system capable of projecting a video image, a computer image, or the like with magnification so that the image can be comfortably viewed even in a humid environment such as in a bathroom or sauna room, and of listening to music. The projector system includes: a bathroom in which, on at least one side thereof, a glass functioning as a projection surface is disposed; a dressing room adjacent to the bathroom; and a projector device which is installed in a position opposite to the glass, for projecting a video image, in which: the glass is formed of a laminated glass composed of at least two glass plates; at least one glass plate of the laminate glass is a heat generating glass plate having a transparent conductive film; and the two glass plates constituting the laminated glass are provided with a translucent milk white intermediate film interposed therebetween, thereby making it possible to project a clear video image by preventing dew formation and clouding even in a highly humid environment such in as a bathroom.08-28-2008
20100110391PROJECTOR - A projector includes at least one light source module, an optical system, an imaging unit, and a projection lens. Each light source module includes a lamp unit and a heat-dissipating module in close contacting with the lamp unit. Each of the at least one light source module is positioned at one end of the optical system. The imaging unit is positioned at the other end of the optical system. The projection lens is positioned at the same end of the optical system with the imaging unit. Each lamp unit can be adjusted along a first direction relative to the heat-dissipating module, each light source module can be adjusted along a second direction relative to the optical system, the first direction and the second direction both perpendicular to the light emitting direction of the corresponding lamp unit.05-06-2010
20120062853PROJECTOR - A projector includes an outer housing having an exhaust port, a louver board configured to rotate to an open position in which the louver board opens the exhaust port or to a close position in which the louver board closes the exhaust port, and a drive mechanism configured to rotate the louver board and includes a moving member that rotates the louver board to the open position or the close position by moving rectilinearly. The louver board includes a projecting section configured to engage the moving member. The positions of the projecting section in the open position and in the close position are set so as to be located on opposite sides of a virtual plane which includes a rotation axis of the louver board and is perpendicular to a direction in which the moving member moves.03-15-2012
20120300179LED LIGHT SOURCE BOX AND PROJECTOR INCLUDING THE SAME - Provided is a LED light source box that includes: case (11-29-2012
20110181844PROJECTION DISPLAY DEVICE - A projection display device includes a main body cabinet; a shield member which is disposed in the main body cabinet, and shields an electromagnetic wave; an air inlet which is formed in the main body cabinet; and a filter device which removes unwanted matters from an air drawn into the main body cabinet through the air inlet. In this arrangement, the filter device includes a metal filter. The metal filter and the shield member are electrically connected to each other when the filter device is mounted in the main body cabinet.07-28-2011
20110181843PROJECTION DISPLAY DEVICE - A projection display device includes an imager portion which modulates light based on an image signal; a projection lens unit which includes a resin lens and projects the light modulated by the imager portion; a projection port which is formed in a main body cabinet, and passes light from the projection lens unit; an air inlet which is formed in a vicinity of the projection port of the main body cabinet; and an air passing portion which draws in an air through the air inlet and passes the drawn-in air along the projection lens unit.07-28-2011
20110181842LIGHT SOURCE APPARATUS AND PROJECTOR TYPE IMAGE DISPLAY APPARATUS - The present invention is directed to provide a light source apparatus that includes space-saving LED cooling unit, and a projector type image display apparatus including the same. The light source apparatus of the present invention includes a plurality of LEDs, a plurality of heatsinks that are respectively thermally coupled to the LEDs and that are disposed in series with an interval between each other, and a cooler mechanism that sends a cooling airflow into the heatsinks along their disposition direction. A heatsink included in the plurality of heatsinks that dissipates the heat of an LED having a greater heat generating amount out of the plurality of LEDs is disposed downstream in the cooling airflow from the other heatsink.07-28-2011
20120133906COOLING SYSTEM FOR COOLING A HEAT SOURCE AND PROJECTION APPARATUS HAVING THE SAME - A cooling system for cooling a heat source and a projection apparatus having the same are disclosed. The cooling system includes a heat dissipating device and a thermoelectric cooler (TEC). The heat source is disposed on the side of the heat dissipating device. The TEC is disposed on the other side of the heat dissipating device corresponding to the heat source. The TEC is initiated as the temperature of the heat source is greater than the first value, while the TEC is shut off as the temperature of the heat source is lower than the second value. Therefore, the cooling system economizes the energy by controlling the operation of the TEC according to the temperature of the heat source.05-31-2012
20090059179IMAGE DISPLAYING APPARATUS, AND A METHOD FOR ADJUSTING VIBRATING CONDITION OF A REFLECTION MIRROR IN THE IMAGE DISPLAYING APPARATUS - For enabling to prevent ill effects from being generated in the structures of a reflection mirror, even if increasing an output energy from a light source, thereby preventing ill influences from being exerted on the driving condition thereof, a mirror drive controller unit 03-05-2009
20090103055HEAT DISSIPATION DEVICE FOR A DISPLAY PROJECTOR LAMP MODULE - A display projector lamp module includes a lamp, a mounting member supporting the lamp, a metal cover and a heat pipe. The mounting member and the metal cover cooperates to defines a room, and the lamp is received in the room. A plurality of first and second fins is mounted on opposite sidewalls of the cover to dissipate heat generated by the lamp. The heat pipe is mounted around a periphery of the cover and thermally contacts with the first and second fins.04-23-2009
20120257171LIGHT SOURCE ASSEMBLY AND PROJECTOR HAVING THE SAME - A light source assembly includes a plurality of first light sources disposed on a first plane to emit light, a plurality of second light sources disposed on a second plane, the second plane spaced apart from the first plane with a preset interval, wherein each second light source emits light between the adjacent first light sources, and a lens configured to concentrate light emitted from the plurality of first and second light sources. A projector having the light source assembly is also provided.10-11-2012
20100007856Projection Image Display Apparatus - A projection image display apparatus including a detachably attachable light source unit includes: a storage means provided to the light source unit and having previously stored therein information that the light source unit is a genuine product; a determination means making a comparison with the information in the storage means to determine whether the light source unit is the genuine product; and a light source control means controlling an output of the light source unit in accordance with a result from the determination means.01-14-2010
20090021701Projecting System - A projecting system includes a light source for emitting light, a color temperature detecting device for detecting a color temperature value of the light emitted from the light source, a control device for storing a plurality of selectable pre-determined color temperature values therein for a user to select a pre-determined color temperature value, an adjusting device, and a light-modulating device. The adjusting device is disposed in a light path associated with the light source. The control device is configured for controlling the adjusting device to adjust transmittance of the light transmitted therethrough so as to adjust the color temperature value of the light to the selected pre-determined color temperature value. The light-modulating device modulates the light to create an image.01-22-2009
20120229778LED PROJECTOR WITH ADJUSTABLE PROJECTING EFFECTS - The present invention relates to a projecting effect adjusting device containing at least a optical module that can change the LED projecting effects. The projecting effect adjusting device has the function of two-dimensional displacement and fixed-point locating using a displacing control module and a locating module. The said two-dimensional displacement allows at least the linear displacement of the projecting effect adjusting device between the first position and the second position. The fixed-point locating allows at least the projecting effect adjusting device to be located on the first position and the second position. The first position is set to keep a distance between the optical module and the LED matrix light source and the second position is set between the optical module and the light-emitting plane of the LED matrix light source.09-13-2012
20090174866PROJECTOR AND PROGRAM - A projector includes a projection light source, a light-off detector that detects that the projection light source is shut off, and a relighting controller that is triggered to carry out a relighting process for relighting the projection light source based on the detection performed by the light-off detector.07-09-2009
20110234988LIGHT SOURCE AND PROJECTOR - A light source including an arc tube having a light-emitting portion and first and second sealing portions provided on both sides of the light-emitting portion along the optical axis; a reflector configured to reflect a luminous flux emitted from the light-emitting portion; and a sub-mirror arranged so as to oppose the reflector, including a main body portion provided with a reflecting surface configured to reflect part of a luminous flux emitted from the arc tube, a mounting portion configured to be fixed to the second sealing portion, and a cooling air ventilating portion penetrating through the mounting portion in the direction of the optical axis at least on the opposite side from the direction of gravitational force.09-29-2011
20120086918PROJECTION DISPLAY DEVICE AND METHOD FOR CONTROLLING THE SAME - When the operation of a device main body is stopped, control to close an exhaust port shutter is performed, detection as to whether or not the exhaust port shutter is closed is performed, when the exhaust port shutter is not closed, the control to close the exhaust port shutter is retried, when the exhaust port shutter is not closed after the retry, error processing is performed, and, after the error processing, the state transitions to a standby state in which startup is possible.04-12-2012
20120327379IMAGE DISPLAY APPARATUS - An image display apparatus including a laser light source apparatus with a semiconductor laser as a light source increases the heat releasing ability of the laser light source apparatus in the image display apparatus. In order to accomplish this, a heat sink is provided to a green color laser light source apparatus, which generates green color light by wavelength conversion from infrared light and, therefore, produces a greater amount of heat than the other laser light source apparatuses. In addition, an air flow blocking cover is mounted on the surface of the holder, covering the temperature sensor, to prevent distribution to the temperature sensor of cooling air from the cooling fan disposed adjacent to the red color laser light source apparatus. It is thus possible to comply with laser safety standards.12-27-2012
20120327378Aircraft Display System - A method and apparatus comprising a projector system and a structure connected to the projector system. The projector system is configured to project an image on an exterior surface of an aircraft. The structure is configured to be connected to the aircraft and has a shape configured to reduce an undesired airflow caused by the projector system when the aircraft is in flight.12-27-2012
20130010266Compact Projector Head - Systems methods and apparatus for projection system including a control/illumination module and a separate projector head are disclosed. The control/illumination module can be disposed in the location separate from location in which the projector head is disposed and/or used. The projector head can be coupled to the control/illumination module via a control signal connection, and illumination transmission connection and an optional coolant connection. By separating the control/illumination module from the projector head module, many, if not all, noise and heat producing elements can be implemented in the control/illumination module, thus providing a smaller sized, quieter, efficient and lower maintenance projector head that can be installed in implementations in which extraneous noise, heat, and leaked light can be detrimental to the viewing experience.01-10-2013
20130010268PROJECTOR - In a projector, a projection unit includes a projection mechanism that projects an image and an air hole that takes in or exhausts air used to dissipate heat generated from a light source included in the projection mechanism. A housing covers the air hole when the projection unit is in a storage position in which the projection unit does not project an image and uncovers the air hole when the projection unit is in a projection position in which the projection unit projects an image. The drive mechanism moves the projection unit or a cover member. An electronic control unit controls the drive mechanism to move the projection unit to the projection position in which an image is projected when receiving a predetermined projection preparation request and move the projection unit to the storage position in which no image is projected when receiving a predetermined storage request.01-10-2013
20130010267LIGHT SOURCE DEVICE AND PROJECTOR - Alight source device includes a reflector that reflects light received from an arc tube toward an illumination receiving area, and a housing that houses the reflector to form a space through which cooling air for cooling the arc tube flows. The housing has three delivery ports disposed side by side as ports from each of which the cooling air is delivered into the space. A first delivery port included in the three delivery ports is located such that the center of the first delivery port is disposed substantially at a position aligned with the optical axis of the arc tube. Second and third delivery ports included in the three delivery ports are disposed in the vicinity of one and the other sides of the first delivery port, respectively, with respect to the optical axis.01-10-2013
20120242963COOLING UNIT AND PROJECTOR - A cooling unit is provided which cools effectively a plurality of heat sources which are accommodated within small-sized electronic equipment such as a projector. There is provided a cooling unit in which a plurality of base plates 09-27-2012
20120242962LIGHT SOURCE DEVICE AND PROJECTOR - A light source device includes: a tubular body disposed in the front side of a reflection mirror in the light emission direction and surrounding an arc tube; a pair of ducts connecting with the tubular body and provided with a first channel and a second channel to guide air; and a channel switching mechanism which allows air to flow through the first channel or the second channel. The tubular body includes a pair of communicating ports configured to supply air flowing through the first channel and the second channel toward the light emission portion. The pair of the communicating ports are disposed on a virtual line passing through the center line of the arc tube and crossing the vertical direction and the horizontal direction as viewed in a direction along the center line.09-27-2012
20080246923FIXING MECHANISM FOR FIXING A LIGHT VALVE AND A THERMAL MODULE OF AN OPTICAL ENGINE AND RELATED OPTICAL ENGINE - A fixing mechanism includes a first fixing component, a second fixing component, a first elastic component, a second elastic component, and a third elastic structure. The first fixing component has a first end, and a second end where a first holding surface is disposed. The second fixing component has a first end fixed on the optical engine, and a second end where a second holding surface is disposed. The first elastic component has a first end connected to the first holding surface and a second end connected to an interface board. The second elastic component has a first end connected to the second holding surface and a second end connected to the interface board. The third elastic structure has a first side connected to the first holding surface and the second holding surface, and a second side located opposite to the first side and connected to the thermal module.10-09-2008
20100085542OPTICAL ENGINE AND PROJECTOR USING SAME - An optical engine includes a receiving chamber and three light source modules. Each light source module includes a positioning board, a heat dissipating plate, and a light source unit. The heat dissipating plate is sandwiched between the light source unit and the positioning board and adhered to the corresponding light source unit. The light source unit is installed on the receiving chamber. The positioning board is matched with the light source unit and installed on the receiving chamber.04-08-2010
20120249976PROJECTION APPARATUS, PROJECTION METHOD, AND PROGRAM STORING PROGRAM - A projection unit projects the optical image formed by the optical image formation unit toward a projection target. A temperature detection unit detects a temperature of each type of the semiconductor light emitting elements during light emission. A measurement unit measures an intensity of light from each type of the semiconductor light emitting elements during light emission. A light emission control unit (a) corrects a measurement result from the measurement unit using a detection result from the temperature detection unit and (b) controls the light emission intensity for each of the semiconductor light emitting elements based on the corrected measurement result.10-04-2012
20130114045IMAGE PROJECTION APPARATUS - An image projection apparatus for projecting an image using light includes a light source configured to emit the light; and an operating unit configured to allow a user to operate the image projection apparatus, the operating unit being disposed above the light source when viewed from a placement surface on which a main body of the image projection apparatus is placed. The image projection apparatus also includes a first flow path in which air flows through the light source; and a second flow path different from the first flow path, the second flow path being formed between the light source and the operating unit.05-09-2013
20130114046ELECTROOPTIC MODULE AND ELECTRONIC DEVICE - A small-sized first translucent plate overlapped on an image display region and a plate-like cover are provided on a first substrate. Engagement plate portions of the plate-like cover are engaged with a frame so that the plate-like cover is bonded to the frame. The plate-like cover constitutes a ventilation path which extends along an extending direction of a side end surface of the first substrate and is opened at both sides of the extending direction together with a side end surface of the first translucent plate, an exposed portion of an electrooptic panel from the first translucent plate, and the frame.05-09-2013
20130128236PROJECTION TYPE DISPLAY APPARATUS AND METHOD OF COOLING LIGHT SOURCE - There is provided a projection-type display apparatus which solves the problem that when an amount of electric power applied to light sources is adjusted, the amount of electric power involved in the cooling of LEDs becomes greater than necessary. Coolers (05-23-2013
20130128235PROJECTOR AND COOLING CONTROL METHOD - A projector according to an embodiment of the invention can measure the temperature of an object to be cooled accurately with a simple configuration and perform accurate cooling control. The projector includes a power-supply unit, a ballast unit having a ballast control circuit and a photocoupler, and a control unit. The power-supply unit includes a temperature detection element generating temperature information indicating the temperature inside the power-supply unit. The ballast control circuit controls a constant-current control circuit and the like based on the control information transmitted from the control unit via the photocoupler and transmits temperature data based on the temperature information to the control unit via the photocoupler. The control unit includes a projector control circuit performing cooling control on the power-supply unit based on the temperature data.05-23-2013
20130128234IMAGE PROJECTION APPARATUS - According to an embodiment, an image projection apparatus includes a light source unit, an image forming unit that forms an image using light from the light source unit, and a heat releasing unit that is provided to the image forming unit and releases heat from the image forming unit, and projecting the image formed by the image forming unit. The image projection apparatus includes a facing member that faces an installation surface on which a main body of the apparatus is installed; and a foot that allows the facing member to support the image forming unit. The heat releasing unit is provided between the facing member and the image forming unit.05-23-2013
20130128233PROJECTOR - A projector includes a housing, a light source disposed in the housing, a light projection unit, disposed in the housing, to project light emitted from the light source, a detector to detect a load caused by an object blocking the light projection unit, and a microprocessor to activate a protection operation for the projector when the detector detects that the load caused by the object blocking the light projection unit exceeds a threshold load.05-23-2013
20090059178PROJECTOR AND HEAT DISSIPATION SYSTEM OF THE PROJECTOR - An exemplary projector includes a power supply circuit, a heat dissipation device, a rechargeable cell and a first switching circuit connected between the heat dissipation device and the rechargeable cell. The heat dissipation device is configured for dissipating heat produced by the projector. The power supply circuit is configured for powering the heat dissipation device. The rechargeable cell is configured for receiving and storing electrical power from the power supply circuit. The first switching circuit is configured for controlling the rechargeable cell to power the heat dissipation device when the power supply circuit stops powering the heat dissipation device. A related heat dissipation system is also provided.03-05-2009
20130148085LIGHT SOURCE LAMP LIGHTING DEVICE AND METHOD - A light source lamp lighting device includes a light source lamp, cooling means for cooling the light source lamp, an extinguishing time measurer that calculates extinguishing time information indicating an extinguishing period when the light source lamp was last switched off to a present time, a storage that stores lighting performance, which is a history of successes and failures of lighting the light source lamp, a plurality of cooling times corresponding to an extinguishing period when the light source lamp is switched off indicated by the extinguishing time information as a cooling time for causing the cooling means to operate, and a first threshold set with respect to the lighting performance, and a controller that reads out, in lighting the light source lamp, the lighting performance, the cooling time stored in the storage based on the extinguishing period when the light source lamp is switched off calculated by the extinguishing time measurer, and the first threshold and, when a number of successes of lighting indicated by the lighting performance exceeds the first threshold, subtracts a predetennined time from the read-out cooling time to calculate a cooling time value for causing the cooling means to operate.06-13-2013
20110234989PROJECTOR - A projector which includes a projection optical device which projects an image includes: a heating unit which heats the projection optical device; and a control unit which controls the heating unit, wherein the control unit controls the heating unit so that the temperature of the projection optical device is equal to or higher than the temperature in which a focal position of the projection optical device is stabilized.09-29-2011
20110234987LIGHT SOURCE DEVICE AND PROJECTOR - A light source device includes: an arc tube having a light emission portion containing a pair of electrodes and configured to emit light by discharges induced between the pair of the electrodes; and a container body that accommodates the arc tube, the container body has a space in which the arc tube is accommodated, and a plurality of openings through that cooling fluids introduced from the outside of the container body are supplied into the space, the plural openings are formed at positions that allow the cooling fluids passing through the openings to collide with each other at a collision position above the light emission portion.09-29-2011
20110310359LIGHT MODULATION DEVICE AND PROJECTOR - A light modulation device includes: a reflective light modulation element which modulates an incident light; a holding section which holds the reflective light modulation element; and a light blocking plate disposed on an incident side which incidents the incident light to the reflective light modulation element, and fixed to the holding section, wherein a thermal conductivity of the light blocking plate is equal to or higher than a thermal conductivity of the holding section.12-22-2011

Patent applications in class TEMPERATURE CONTROL

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