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1.发明授权A SYSTEM FOR MAINTAINING LIGHT CHARACTERISTICS FROM A MULTI-CHIP LED PACKAGE 有权SYSTEM FOR A MULTI芯片的抵达光特性LED外壳
公开(公告)号：EP1518445B1
公开(公告)日：2009-05-06
申请号：EP03735929.6
申请日：2003-06-12
IPC分类号： H05B33/08
CPC分类号： H05B33/0869
摘要： The present invention provides a method, system and structure for maintaining light characteristics from a multi-chip LED package. This may be done by selecting a desired light output and restricting light from a plurality of light emitting diodes in the multi-chip LED package. It may also be done by measuring the restricted light, comparing the measured output light to the desired light and by adjusting current to LEDs in the multi-chip LED package based on the measured light.
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2.发明公开METHOD AND APPARATUS FOR RECYCLING REFLECTED LIGHT IN OPTICAL SYSTEMS AS E.G. PROJECTION DISPLAY 审中-公开方法和装置用于光学系统，如反射光的回收 投影SHOW
公开(公告)号：EP1639402A1
公开(公告)日：2006-03-29
申请号：EP04744367.6
申请日：2004-06-21
发明人： PASHLEY, Michael, D.
IPC分类号： G02F1/13357 , G03B21/20 , G02B27/10 , G02B5/30 , F21V7/00
CPC分类号： G02F1/13362 , G02B27/102 , G02B27/1033 , G02B27/149 , G02B27/283 , G02F1/133536 , G02F1/136277 , G02F2001/133622 , G03B21/2013 , H04N9/315
摘要： An optical system (100, 200) and method of use includes at least one light source (105, 106, 107, 211, 302), each of which transmit light substantially of a particular wavelength range in a substantially randomly polarized state or an unpolarized state. The optical system (100, 200) includes a reflective polarizer (108, 204, 305) coupled to the light source, and an element (101, 102, 103, 201, 202, 203, 301) that redirects the reflected light through the light source and onto the reflective polarizer. Illustratively there is substantially no optical distance between the light source (105, 106, 107, 211, 302) and the element (101, 102, 103, 201, 202, 203, 301). An optical package, which recycles reflected light is also disclosed.
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公开(公告)号：EP1048085B1
公开(公告)日：2007-11-14
申请号：EP99948955.2
申请日：1999-09-24
IPC分类号： H01L33/00
CPC分类号： H01L33/58 , F21V5/002 , F21V5/02 , F21V5/04 , F21V7/0091 , F21Y2115/10 , H01L33/60
摘要： A LED module comprising a LED and a rotationally symmetrical, bowl-shaped collimator lens. Said lens comprises a hole for accommodating the LED. The lens also includes a flat surface through which light from the LED passes. The normal to this emergent surface is substantially parallel to the axis of symmetry of the lens. Said surface comprises a sawtooth-like structure for bending the outgoing light. LED modules of this type can deflect the outgoing light through a certain angle relative to the axis of symmetry of the lens. These modules are relatively cheap and compact.
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公开(公告)号：EP1259754A1
公开(公告)日：2002-11-27
申请号：EP01271514.0
申请日：2001-12-06
IPC分类号： F21V7/09 , F21Y101/02
CPC分类号： F21S10/02 , F21V7/09 , F21Y2115/10
摘要： A light source includes an array of LED components in each of a plurality of colors such as red, green, and blue in the entrance aperture of a tubular reflector which has an exit aperture, an optic axis extending between the apertures, and a reflective circumferential wall extending between the apertures to reflect and mix light from the array of LED components. At least a portion of the circumferential wall of the reflector body has a polygonal cross-section taken normal to the optic axis, and at least a portion of the cross-section taken parallel to the optic axis includes segments of a curve joined one to the next to form a plurality of facets for reflecting light from the LED components to said exit aperture. Preferably, the segments of the curve included in the cross-section of the reflector body taken parallel to the optic axis are contiguous, linear trapezoidal facets.
摘要翻译： 光源包括在管状反射器的入口孔中的多个颜色（例如红色，绿色和蓝色）中的每一种中的LED组件的阵列，其具有出口孔，在孔之间延伸的光轴和反射圆周 壁在孔之间延伸以反射和混合来自LED组件的阵列的光。 反射器主体的圆周壁的至少一部分具有垂直于光轴的多边形横截面，并且平行于光轴的横截面的至少一部分包括一个连接到该光轴的曲线的段 接下来形成用于将来自LED部件的光反射到所述出口孔的多个面。 优选地，包括在平行于光轴的反射体的横截面中的曲线段是相邻的线性梯形面。
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公开(公告)号：EP1159728A1
公开(公告)日：2001-12-05
申请号：EP00979618.6
申请日：2000-11-23
IPC分类号： G09G3/34
CPC分类号： G09G3/3413 , G02B27/145 , G02F1/1336 , G02F2001/133622 , G09G2310/0235 , H04N9/3114 , H04N9/315 , H04N9/73
摘要： A display system has a light source which is composed of at least two LED sources having slightly different peak wavelengths of light emission. The separate LED sources are combined into a single beam having increased lumen output with little or no increase in etendue. Such combined sources of different colors (eg., red, green and blue) are useful as the light engine in display systems having a limited etendue, arising for example from the use of small light modulator panels.
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公开(公告)号：EP1155455A1
公开(公告)日：2001-11-21
申请号：EP00979608.7
申请日：2000-11-17
IPC分类号： H01L25/13 , H01L25/075 , H01L33/00
CPC分类号： H01L25/0753 , H01L33/50 , H01L33/504 , H01L2924/0002 , Y10S362/80 , H01L2924/00
摘要： A hybrid lighting system for producing white light including at least one light emitting diode and phosphor-light emitting diode. The hybrid lighting system exhibits improved performance over conventional LED lighting systems that use LEDs or phosphor-LEDs to produce white light. In particular, the hybrid system of the invention permits different lighting system performance parameters to be addressed and optimized as deemed important, by varying the color and number of the LEDs and/or the phosphor of the phosphor LED.
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公开(公告)号：EP1082572B1
公开(公告)日：2007-04-18
申请号：EP00914124.3
申请日：2000-03-10
CPC分类号： G02F1/133605 , F21S10/02 , F21V9/40 , F21Y2105/10 , F21Y2105/12 , F21Y2113/13 , F21Y2115/10
摘要： A light source includes an array of LEDs in each of a plurality colors such as red, green, and blue in the entrance aperture of a tubular reflector which preferably has convex walls facing the optic axis and flares outward toward the exit aperture, and preferably has a polygonal cross section such as a square. Mixing of colors is further promoted by utilizing a large number of small LEDs with the LEDs of each color being centered on the optic axis.
摘要翻译： 光源包括在管状反射器的入口孔中的多种颜色（例如红色，绿色和蓝色）中的每一种中的LED阵列，其优选地具有面向光轴的凸壁并向外朝向出射孔向外张开，并且优选地具有 多边形横截面，如正方形。 通过利用大量的小LED，每种颜色的LED以光轴为中心，进一步促进了颜色的混合。
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公开(公告)号：EP1321012B1
公开(公告)日：2005-12-14
申请号：EP01965257.7
申请日：2001-09-05
CPC分类号： H05B33/0818 , F21V9/40 , F21V23/0442 , F21V23/0457 , F21W2111/02 , F21Y2105/10 , F21Y2113/13 , F21Y2115/10 , G08G1/095 , H05B33/0803 , H05B33/086 , H05B33/0863 , H05B33/0869
摘要： A luminaire comprises an array of LEDs that include at least one LED in each of a plurality of colors. Supplied to the LEDs for each color is an electrical current that, during a measuring period, comprises a measuring drive pulse having at least a first boost portion and a turn-off portion. The LEDs relating to each color have a light output which has a nominal continuous value during ordinary operation and increases during the boost portion and is interrupted during the turn-off portion. The array has a combined light output when current is supplied to all of the LEDs in the array. A photodiode is arranged to measure the combined light output which selectively turning off the electrical current to the LEDs so that the photodiode measures the light output for each color separately in response to the measuring drive pulse. The average light output during the measuring period is substantially equal to the nominal continuous light output during the ordinary operation so as to avoid visible flickers.
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9.发明公开A SYSTEM FOR MAINTAINING LIGHT CHARACTERISTICS FROM A MULTI-CHIP LED PACKAGE 有权SYSTEM FOR A MULTI芯片的抵达光特性LED外壳
公开(公告)号：EP1518445A1
公开(公告)日：2005-03-30
申请号：EP03735929.6
申请日：2003-06-12
IPC分类号： H05B33/08
CPC分类号： H05B33/0869
摘要： The present invention provides a method, system and structure for maintaining light characteristics from a multi-chip LED package. This may be done by selecting a desired light output and restricting light from a plurality of light emitting diodes in the multi-chip LED package. It may also be done by measuring the restricted light, comparing the measured output light to the desired light and by adjusting current to LEDs in the multi-chip LED package based on the measured light.
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公开(公告)号：EP1056993B1
公开(公告)日：2003-03-26
申请号：EP99962235.0
申请日：1999-12-02
IPC分类号： G01J3/50
CPC分类号： H05B33/086 , F21V9/40 , F21V23/0442 , F21V23/0457 , F21W2111/02 , F21Y2115/10 , G02B6/003 , G08G1/095 , H05B33/0818
摘要： A white light emitting luminaire includes a plurality of LEDs in each of the colors red, green, and blue with a separate power supply for each color and a photodiode arranged to measure the light output of all the LEDs. The light output of each color is measured by an electronic control circuit which turns off the LEDs for the colors not being measured in a sequence of time pulses. The measured light output for each color is compared to a desired output, which may be determined by user inputs, and corrections to the current for each color are made accordingly.
摘要翻译： 白光发射照明器包括红色，绿色和蓝色中的每一种颜色中的多个LED（10,12,14），每种颜色具有单独的电源，光电二极管（24）被布置为测量所有颜色的光输出 LED。 每种颜色的光输出由电子控制电路（30）测量，该电子控制电路（30）关闭未按时间脉冲序列测量的颜色的LED。 将每种颜色的测量光输出与可由用户输入确定的期望输出进行比较，并相应地对每种颜色的电流进行校正。
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