Solid state based illumination source utilizing dichroic reflectors
文献类型:专利
作者 | WEBER, ANDREAS G.; CULTER, GERGORY M.; TRUTNA, WILLIAM R.,JR. |
发表日期 | 2000-08-02 |
专利号 | EP1024539A2 |
著作权人 | AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD. |
国家 | 欧洲专利局 |
文献子类 | 发明申请 |
其他题名 | Solid state based illumination source utilizing dichroic reflectors |
英文摘要 | A light source[50] having emissions in a plurality of spectral bands. The simplest light source according to the present invention is constructed from first and second light sources[51, 52] and a dichroic beam splitter[54]. The first and second solid state light sources emit light in first and second bands of non or only partially-overlapping wavelengths. The dichroic beam splitter[54] combines light from the first and second solid state light sources[51, 52] by passing light in the first band while reflecting light in the second band to generate light having a spectral content in the first and second bands. The solid state light sources[51-53] are preferably arrays of LEDs, VCSELs, or edge emitting semiconductor lasers. A light source having improved radiance in the green region of the spectrum can be constructed by utilizing first and second solid state light sources that emit in different bands in the green portion of the spectrum. A white light source can be constructed by utilizing a third solid state light source[53] and a second dichroic beam splitter[55] and by choosing the emission bands of the light sources such that light leaving the second dichroic beam splitter[55] is perceived as white by an observer when all three solid state light sources are emitting light. This light source[50] has a radiance that is higher than the radiance of each individual solid state light source. |
公开日期 | 2000-08-02 |
申请日期 | 1999-08-26 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/92870] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD. |
推荐引用方式 GB/T 7714 | WEBER, ANDREAS G.,CULTER, GERGORY M.,TRUTNA, WILLIAM R.,JR.. Solid state based illumination source utilizing dichroic reflectors. EP1024539A2. 2000-08-02. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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