Xi'an Institute of Optics and Precision Mechanics,CAS
Laser array illumination for bright projectors | |
其他题名 | Laser array illumination for bright projectors |
SVENSEN, OYVIND; OLSEN, KJELL EINAR; LEFSAKER, SVERRE; SIMONSEN, TOBBY; BJORNSEN, RONNY | |
2014-12-09 | |
专利权人 | PROJECTIONDESIGN AS |
公开日期 | 2014-12-09 |
授权国家 | 美国 |
专利类型 | 授权发明 |
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. |
其他摘要 | 本发明的实施例提供用于为投影仪提供照明的装置和系统。一个或多个光束组合器用于组合多个光束,以向投影仪中的成像装置的光瞳提供组合光束。诸如二极管激光器和发光二极管(LED)之类的固态光源可以以相对低的成本和低的功率用作光源,并且具有长的寿命。在一个实施例中,光束组合器包括第一反射表面,第二反射表面和设置在第一反射器表面和第二反射表面之间的透明区域。在另一实施例中,提供了一种包括光束组合器阵列的光学装置。在另一实施例中,结合光束组合器利用包括安装在弯曲表面上的多个发光装置的光源来为投影仪提供照明。 |
申请日期 | 2012-09-21 |
专利号 | US8905578 |
专利状态 | 授权 |
申请号 | US13/624659 |
公开(公告)号 | US8905578 |
IPC 分类号 | G02B19/00 | F21V7/00 | G03B21/20 | G03B21/26 | G03B21/28 |
专利代理人 | - |
代理机构 | KILPATRICK TOWNSEND & STOCKTON LLP |
文献类型 | 专利 |
条目标识符 | 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[P]. 2014-12-09. |
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US8905578.PDF(1374KB) | 专利 | 开放获取 | CC BY-NC-SA | 请求全文 |
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