Patent application number | Description | Published |
20080198280 | Light Module for Producing Light With a Scattering Pattern that is Electrically Variable and Use thereof as Multiple Purpose Light - The invention provides a light module ( | 08-21-2008 |
20080203945 | Describing Two Led Colors as a Single, Lumped Led Color - A light emitting diode (LED) lighting system for producing white light is disclosed. The system comprises sets of LEDs arranged to emit light with different wavelength ranges and associated with different sets of characteristics, and a driving circuit arranged to drive the LEDs. The driving circuit comprises an input for desired light intensity, color rendering index, and color temperature, an input for signals for LED temperature, a model for determining driving currents for said sets of LEDs from said parameters, signals, and characteristics for each of said sets of LEDs; and a current driver for the LEDs. At least one of the sets of LEDs comprises a first subset of LEDs with a first wavelength sub-range and a first set of characteristics, and a second subset of LEDs with a second wavelength sub-range and a second set of characteristics. A lumped wavelength range of the set of LEDs is a range of said first and second wavelength sub-ranges, and the set of characteristics of the set of LEDs is a function of said first and second sets of characteristics. A method for controlling the sets of LEDs is also disclosed. | 08-28-2008 |
20080205075 | Light Module For Producing Light With a Scattering Pattern That is Electrically Variable and Use Thereof as a Multiple Purpose Light - The invention provides a light module ( | 08-28-2008 |
20080211978 | Controlling Shape and Direction of Light | 09-04-2008 |
20080290354 | Light Emitting Diode Assembly - A light emitting diode (LED) assembly, comprising a metal substrate ( | 11-27-2008 |
20080310151 | Illuminat System - An illumination system has linear array of light emitters (R,G,B,A,W) associated with it least one linear array of outcoupling means (O | 12-18-2008 |
20090008655 | White Light Source - A white light source ( | 01-08-2009 |
20090027891 | BEAM SHAPERS USING ELECTRICALLY CONTROLLABLE SCATTERING - The present invention relates to a device ( | 01-29-2009 |
20090134409 | COMPOSITE LED MODULES - The present invention provides a composite multi-color light emitting diode device comprising a first light emitting diode unit and a second light emitting diode unit that is arranged on top of the first light emitting diode unit. Thereby, a composite light emitting diode device, capable of emitting two different wavelengths of electromagnetic radiation is provided. It is furthermore possible to arrange a third light emitting diode unit. The third light emitting diode unit can be arranged on top of the second light emitting diode unit, thereby providing a stack of three light emitting diode units, or it can be arranged on the first light emitting diode unit, thereby providing two light emitting diode units side-by-side on top of the first light emitting diode unit. | 05-28-2009 |
20090201677 | HIGH EFFICIENCY LED LIGHT SOURCE ARRANGEMENT - A light source ( | 08-13-2009 |
20090212709 | LED Luminaire With Optical Feedback By Image Mapping On Segmented Light Sensors - The present invention relates to a luminaire comprising an array of LEDs emitting light of at least one colour, and a control system for controlling the light output of the luminaire. The control system comprises photosensor array for detecting light output of the luminaire. An imaging unit is arranged in front of the photosensor array such that it maps an image of said array of LEDs on said photosensor array. The photosensor array is divided into subareas each detecting light output from a single one of the LEDs. The control system uses the output of the subareas for controlling the luminaire light output. Thus, it is possible to act on different LED light colours or the light output of individual LEDs without having to separate them in time by means of a time pulsing method. | 08-27-2009 |
20090279316 | LAMP UNIT FOR AN ADAPTIVE FRONT LIGHTING SYSTEM FOR A VEHICLE - The present invention relates to a lamp unit ( | 11-12-2009 |
20090283780 | ILLUMINATION SYSTEM - An illumination system has a mounting substrate ( | 11-19-2009 |
20100109575 | SINGLE CHIP LED AS COMPACT COLOR VARIABLE LIGHT SOURCE - The present invention relates to a color variable light-emitting device comprising an array of a plurality of LEDs formed on one highly resistive substrate, which array comprises a first, a second and a third set of at least one LED arranged to provide light of a first, a second and a third color, respectively. At least one of the sets is independently addressable. Further, each light-emitting diode in the array has a separate connection to a circuitry, and at least one of the sets comprises at least two LEDs, interconnected in series via the circuitry. Thus, all connections between separate LEDs, for example in the same set, can be done via the circuitry. This also allows for a very dense packing of the LEDs in the array, as no interconnects between different LEDs of the array need to be arranged in the array. | 05-06-2010 |
20100220265 | ILLUMINATION SYSTEM AND DISPLAY DEVICE - An illumination system comprises a gas discharge lamp ( | 09-02-2010 |
20100271828 | LIGHT-EMITTING DEVICE AND METHOD FOR ITS DESIGN - A small and bright light-emitting device, comprising an outer boundary lens surface and at least one LED, is achieved by carefully choosing the inclination of each surface portion of the outer lens surface with respect to the chip size of the light source. The inclination of the surface portions are chosen such that the lens provides an optimal weighing between size and light efficiency. | 10-28-2010 |
20100328925 | ILLUMINATION DEVICE WITH LED AND A TRANSMISSIVE SUPPORT COMPRISING A LUMINESCENT MATERIAL - The invention provides an illumination device ( | 12-30-2010 |
20110025192 | ILLUMINATION DEVICE WITH LED AND A TRANSMISSIVE SUPPORT COMPRISING A LUMINESCENT MATERIAL - The invention provides an illumination device ( | 02-03-2011 |
20120155059 | LIGHT SOURCE COMPRISING A LIGHT EMITTER ARRANGED INSIDE A TRANSLUCENT OUTER ENVELOPE - The invention relates to a light source ( | 06-21-2012 |