Light multiplexer and recycler, and micro-projector incorporating the same

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	Light multiplexer and recycler, and micro-projector incorporating the same
其他题名	Light multiplexer and recycler, and micro-projector incorporating the same
	LI, KENNETH
	2010-12-01
专利权人	WAVIEN, INC.
公开日期	2010-12-01
授权国家	欧洲专利局
专利类型	发明申请
摘要	A micro-projector comprises an LED layer, a light pipe coupled to the LED, a LCOS panel, a projection lens, a PBS, an aperture layer coupled to the output end of the light pipe which has a transmissive opening for transmitting a portion of the light output and a reflective surface for reflecting the remaining portion of the light output toward the input end of the light pipe. Thus, the remaining portion of the light output is recycled back to the LED to increase the brightness of the light output of the LED. The micro- projector also comprises a reflective polarizer disposed between the light pipe and the aperture layer for transmitting the light output of a predetermined polarization and reflecting other polarization of the light output, thereby recycling unused polarization of the light output back to the LED to increase the brightness of the light output of the LED.
其他摘要	微型投影仪包括LED层，耦合到LED的光管，LCOS面板，投影透镜，PBS，耦合到光管输出端的孔径层，其具有用于透射一部分的透光开口。光输出和反射表面，用于将光输出的剩余部分反射到光管的输入端。因此，光输出的剩余部分被再循环回LED，以增加LED的光输出的亮度。微型投影仪还包括设置在光管和孔径层之间的反射偏振器，用于传输预定偏振的光输出并反射光输出的其他偏振，从而将未使用的光输出的极化回收到LED以增加LED的光输出亮度。
主权项	A light multiplexer and recycler, comprising: a LED layer comprising a plurality of LEDs, each emitting a light output; an optics layer having an input end and an output end, said input end of said optics layer being coupled to said plurality of LEDs for multiplexing light output from said plurality of LEDs; and an aperture layer coupled to said output end of said optics layer and having a transmissive opening for transmitting a portion of the multiplexed light output to provide a single light output and a reflective surface for reflecting remaining portion of the multiplexed light toward said input end of said optics layer, thereby recycling the remaining portion of the multiplexed light back to said plurality of LEDs to increase the brightness of the light output of said plurality of LEDs.
申请日期	2009-01-20
专利号	EP2255242A1
专利状态	失效
申请号	EP2009703066
公开（公告）号	EP2255242A1
IPC 分类号	G02B21/14 \| G03B21/28 \| F21V11/00 \| F21V7/04 \| G02B27/09 \| G03B21/14 \| G03B33/06 \| G03B33/12
专利代理人	-
代理机构	MARCONNET, SÉBASTIEN
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/54066
专题	半导体激光器专利数据库
作者单位	WAVIEN, INC.
推荐引用方式 GB/T 7714	LI, KENNETH. Light multiplexer and recycler, and micro-projector incorporating the same. EP2255242A1[P]. 2010-12-01.