| Patent application number | Description | Published |
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| 20090279277 | OPTICAL SOURCE ASSEMBLY SUITABLE FOR USE AS A SOLAR SIMULATOR AND ASSOCIATED METHODS - The optical source assembly/solar simulator comprises a light source, and a reflector for collecting the light and directing the light in a desired direction. In certain embodiments a spectral filter assembly receives the light from the reflector and blocks at least some of the light at specific wavelengths to produce filtered light. The spectral filter assembly is quickly and easily adjustable to vary the spectral spread of the light in the output beam. A homogenizer receives the filtered light and produces a homogenized beam having a substantially uniform irradiance distribution across the beam's cross-section and a substantially uniform spectral distribution across the beam's cross-section. In certain embodiments, a lens assembly images and sizes the homogenized beam at a point in space where a device to be tested can be placed. | 11-12-2009 |
| 20100014080 | METHOD AND SYSTEM FOR A SOLAR SIMULATOR - System and method for testing solar cells is provided. The system includes a first light source configured to generate a first optical beam; a second light source configured to generate a second optical beam; a reflector for each light source, configured to collimate and direct each of the first optical beam and the second optical beam; a spectral filter assembly associated with each of the first light source and the second light source, the spectral filter assembly configured to (a) receive the first optical beam and the second optical beam (b) split each of the first optical beam and the second optical beam into “N” smaller optical beams, and (c) filter the “N” smaller optical beams; a re-imaging assembly for each spectral filter assembly configured to re-image the smaller “N” optical beam at a dichroic mirror that receives one or more N beams. | 01-21-2010 |
| 20100271799 | Optical Source Assembly Suitable for Use as a Solar Simulator and Associated Methods - An apparatus may have a light source configured to generate light, a reflector configured to collect the light and direct the light in a desired direction, a spectral filter assembly configured to receive the light from the reflector. The spectral filter assembly may have a stationary frame and a plurality of filter elements supported by the stationary frame. Filter elements of the plurality of filter elements may simultaneously filter a desired quantity of light within wavelength band to provide a filtered output light beam. A homogenizer may be configured to receive the filtered output light beam and produce a homogenized light beam having a substantially uniform irradiance distribution across a cross-section of the homogenized light beam. | 10-28-2010 |
| Patent application number | Description | Published |
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| 20090058322 | ADAPTIVE CONTROL APPARATUS AND METHOD FOR A SOLID STATE LIGHTING SYSTEM - The present invention provides a method and apparatus for adaptive control of a solid-state lighting system consisting of one or more groups of one or more light-emitting elements The invention comprises a voltage control device to provide each group with an independently controllable voltage A feedback system to detect and generate a signal representative of drive currents through the one or more groups A computing device then adaptively evaluates, based on the signal, a required voltage that achieves a desired respective drive current in each of the one or more groups. | 03-05-2009 |
| 20090066266 | INTEGRATED POWER AND CONTROL UNIT FOR A SOLID-STATE LIGHTING DEVICE - The present invention provides an integrated power and control unit for use with a solid-state lighting device. The integrated power and control unit comprises a power input and a data input. The power input receives power from a power source, wherein this power is configured in a first power format and the data input receives control data from a control data source, wherein the control data is configured in a first data format. The integrated power and control unit further comprises a translation device coupled to the power input and the data input. The translation device is configured to convert the power in the first power format to power in a second power format and further configured to convert the control data in the first data format to control data in a second data format. The second power format and second data format are compatible with the required power and data formats of the solid-state lighting device and transmit the required power and data formats of the solid-state lighting device using a power and data output. | 03-12-2009 |
| 20100096993 | Integrated Modular Lighting Unit - The present invention provides an integrated self-contained lighting module which can be used on its own, or in conjunction with other modules to produce white light, or light of any other colour within the colour spectrum. Each module comprises one or more light-emitting elements, a drive and control system, a feedback system, thermal management system, optical system, and optionally a communication system enabling communication between modules and/or other control systems. Depending on the configuration, the lighting module can operate autonomously or its functionality can be determined based on either or both internal signals and externally received signals. | 04-22-2010 |
| 20110151114 | COMPOSITE PATTERNING DEVICE AND METHOD FOR REMOVING ELEMENTS FROM HOST SUBSTRATE BY ESTABLISHING CONFORMAL CONTACT BETWEEN DEVICE AND A CONTACT SURFACE - A composite patterning device includes a stiff first layer having a Young's modulus in a first range, a flexible second layer having a Young's modulus in a second range, a fluidic layer interposed between the first and second layers and having a Young's modulus in a variable range, and a relief pattern in the second layer. The device can be used for establishing conformal contact between the relief pattern in the second layer and a contact surface of a host substrate with attached elements. Then, a magnetic field is applied to the device so as to increase the Young's modulus of the fluidic layer to be similar to that of second layer after which a force is applied to the contact surface so as to release and remove the elements from the host substrate by withdrawing the device. | 06-23-2011 |
| 20110163682 | METHOD AND SYSTEM FOR DRIVING LIGHT EMITTING ELEMENTS - A system topology and circuit design for efficiently and stably driving currents through strings of solid state light emitting elements by providing current sources that are controlled by a stable voltage reference. | 07-07-2011 |
| 20110315956 | Electronic Devices with Yielding Substrates - In accordance with certain embodiments, a semiconductor die is adhered directly to a yielding substrate with a pressure-activated adhesive notwithstanding any nonplanarity of the surface of the semiconductor die or non-coplanarity of the semiconductor die contacts. | 12-29-2011 |
| 20110316422 | FAILURE MITIGATION IN ARRAYS OF LIGHT-EMITTING DEVICES - In accordance with certain embodiments, an illumination system comprising a plurality of power strings features elements facilitating compensation for failure of one or more light-emitting elements connected along each power string. | 12-29-2011 |
