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公开(公告)号：EP2844907A1
公开(公告)日：2015-03-11
申请号：EP13719693.7
申请日：2013-04-23
CPC分类号： F21V17/16 , F21K9/61 , Y10T29/49117
摘要： This disclosure provides systems, methods, and apparatuses for array illumination. In one aspect, an array of light engines is coupled to a support structure. Each light engine can be separately controlled to achieve a desired output beam. In another aspect, a support structure includes an array of LED emitters. The support structure is configured to removably receive a plurality of light guides over the array of LED emitters, thereby forming an array of light engines. The support structure can include an integrated heat sink in thermal communication with the array of LED emitters. Light from the LED emitters is distributed over the surface of the light guides to produce a desired output beam. The light engines can be configured to produce output beams of differing color, direction, shape and/or size.
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公开(公告)号：EP2225595A2
公开(公告)日：2010-09-08
申请号：EP08866194.7
申请日：2008-12-15
IPC分类号： G02B6/00 , G02F1/13357
CPC分类号： G02B6/0038 , G02B6/0055
摘要： In various embodiments described herein, a front light guide panel (80) comprises a plurality surface relief features (89) having a variety of different sloping surface portions (89a, 89b). Light (170) injected into an edge of the light guide (80) propagates though the light guide (80) until it strikes one of the surface relief features (89). The light is then turned by total internal reflection such that the light is directed onto a reflective modulator array (81) rearward of the light guide panel (80). The light reflects from the modulator array (81) and is transmitted back through the surface features (89) of the light guide panel (80). However, depending upon where the light is incident on the surface features, the light will be refracted at different angles by the different sloping surface portions. As a result, light reflected from a single point on the modulator array appears to originate from different locations, and ghost images appear. To reduce such ghosting, a conjugate film (92) having equal and opposite surface relief features (99) is disposed forward of the light guide panel (80). Light reflected from the modulator array (81) and passing through surface relief features (89) on the light guide panel is refracted a second time by the conjugate film (92) to return the rays to their original trajectory.
摘要翻译： 在本文所述的各种实施例中，前部光导面板（80）包括具有各种不同倾斜表面部分（89a，89b）的多个表面起伏特征（89）。 注入到光导（80）边缘的光（170）传播通过光导（80），直到它撞击表面起伏特征（89）中的一个。 然后通过全内反射使光转向，使得光被引导到导光板（80）后面的反射调制器阵列（81）上。 光从调制器阵列（81）反射并且通过导光板（80）的表面特征（89）被传回。 然而，根据光入射到表面特征上的位置，光将被不同的倾斜表面部分以不同的角度折射。 结果，从调制器阵列上的单个点反射的光似乎来自不同的位置，并且出现重影图像。 为了减少这种重影，具有相等和相反的表面起伏特征（99）的共轭膜（92）设置在导光板（80）的前方。 从调制器阵列（81）反射并且穿过导光板上的表面起伏特征（89）的光被共轭膜（92）第二次折射以使射线返回到它们的原始轨迹。
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公开(公告)号：EP2841978A1
公开(公告)日：2015-03-04
申请号：EP13721202.3
申请日：2013-04-23
IPC分类号： G02B26/08 , G02F1/1335
CPC分类号： F21V14/06 , F21V5/045 , G02B6/0028 , G02B6/0053 , G02B26/0875 , G02F1/0131 , G02F1/133606 , G02F1/29 , G02F2001/133607 , Y10T156/10
摘要： This disclosure provides systems, methods and apparatus relating to implementations of an electrically controlled light conditioning sheet. In one aspect, the electrically controlled light conditioning sheet includes a planar electrode having a first conductor and a second conductor and a transmissive elastic layer. The transmissive elastic layer is configured to deform in response to a potential difference applied between the first and the second conductor and produce regions of optical refractive power. The angular spread and/or the radiation pattern of an incoming beam of light incident on the electrically controlled light conditioning sheet is altered by the action of the regions of optical refractive power produced by the applied potential difference.
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公开(公告)号：EP2069839A2
公开(公告)日：2009-06-17
申请号：EP07839325.3
申请日：2007-10-05
发明人： HOLMAN, Robert, L. , SAMPSELL, Matt , GRUHLKE, Russell, Wayne , MIENKO, Marek , XU, Gang , BITA, Ion
CPC分类号： G02B6/0028 , G02B6/003 , G02B6/0031 , G02B6/0038 , G02B6/0055 , G02B6/0061
摘要： An illumination apparatus includes a light bar having a first end for receiving light from a light source. The light bar includes material that supports propagation of said light along the length of the light bar. Turning microstructure is disposed on a first side of the light bar. The turning microstructure is configured to turn at least a substantial portion of light incident on the first side and to direct the portion of the light out a second opposite side of the light bar. A substantially reflective surface is disposed with respect to a second end opposite said first end of said light bar to reflect light transmitted through the second end. A light guide panel is disposed with respect to said second opposite side of the light bar to receive light turned by said turning microstructure and directed out of the second opposite side of the light bar.
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公开(公告)号：EP2069841A2
公开(公告)日：2009-06-17
申请号：EP07852571.4
申请日：2007-10-05
发明人： HOLMAN, Robert, L. , SAMPSELL, Matt , GRUHLKE, Russell, Wayne , MIENKO, Marek , XU, Gang , BITA, Ion
CPC分类号： G02B6/0028 , G02B6/003 , G02B6/0031 , G02B6/0038 , G02B6/0055 , G02B6/0061
摘要： An illumination apparatus includes a light bar, turning microstructure disposed on a first side of the light bar, and a light guide panel disposed with respect to a second opposite side of the light bar. The light bar has a first end for receiving light from a light source. The light bar includes material that supports propagation of the light along the length of the light bar. The turning microstructure is configured to turn at least a substantial portion of the light incident on the first side and to direct the portion of light out the second opposite side of the light bar. A parameter of the turning microstructure changes with distance from the first end of the light bar. The light bar has a turning efficiency that determines the amount of light turned out of the light bar compared to the amount of light that continues to be guided within the light bar. The turning efficiency increases with distance from the first end of the light bar. The light guide panel is configured to receive light turned by the turning microstructure and directed out of the second opposite side of the light bar.
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