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	Laser array illumination for bright projectors
	SVENSEN, OYVIND; OLSEN, KJELL EINAR; LEFSAKER, SVERRE; SIMONSEN, TOBBY; BJORNSEN, RONNY
	2014-12-09
著作权人	PROJECTIONDESIGN AS
专利号	US8905578
国家	美国
文献子类	授权发明
其他题名	Laser array illumination for bright projectors
英文摘要	Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. One or more beam combiners are used to combine multiple light beams to provide a combined light beam toward to a pupil of an imaging device in a projector. Solid state light sources, such as diode lasers and light-emitting diodes (LEDs), may be used as light sources at relatively low cost and low power, and with long lifetime. In one embodiment, an optical beam combiner comprises a first reflective surface, a second reflective surface, and a transparent region disposed between the first reflector surface and the second reflective surface. In another embodiment, an optical device comprising an array of optical beam combiners is provided. In a further embodiment, light sources comprising a plurality of light-emitting devices mounted on curved surfaces are utilized in conjunction with an optical beam combiner to provide illumination for a projector.
公开日期	2014-12-09
申请日期	2012-09-21
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/32980]
专题	半导体激光器专利数据库
作者单位	PROJECTIONDESIGN AS
推荐引用方式 GB/T 7714	SVENSEN, OYVIND,OLSEN, KJELL EINAR,LEFSAKER, SVERRE,et al. Laser array illumination for bright projectors. US8905578. 2014-12-09.

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