| 发明名称 | Light module for a projection apparatus and method for generating the blue component in a light module for a projection apparatus | ||
| 摘要 | A light module for a projection apparatus, comprising a laser apparatus adapted to emit linearly polarized radiation in the blue wavelength range, a luminous wheel arranged in the beam path of the radiation emitted by the laser apparatus, a first beam splitter arranged in the beam path of the radiation emitted by the laser apparatus between the laser apparatus and the luminous wheel, a focusing apparatus arranged in the beam path of the radiation emitted by the laser apparatus between the first beam splitter and the luminous wheel, and at least one polarization manipulation apparatus, adapted to rotate the polarization of radiation that has passed through it twice in different directions through 90°, wherein the first beam splitter is arranged such that it is also located in the beam path of radiation in the blue wavelength range which has passed twice through the polarization manipulation apparatus in different directions. | ||
| 申请公布号 | US9170423(B2) | 申请公布日期 | 2015.10.27 |
| 申请号 | US201313942603 | 申请日期 | 2013.07.15 |
| 申请人 | OSRAM GmbH | 发明人 | Mehl Oliver |
| 分类号 | G03B21/14;G02B27/10;F21V13/02;G02B26/04;G02B27/14;G02B27/28;G03B21/20;H04N9/31 | 主分类号 | G03B21/14 |
| 代理机构 | Cozen O'Connor | 代理人 | Cozen O'Connor |
| 主权项 | 1. A light module for a projection apparatus, comprising: a laser apparatus adapted to emit linearly polarized radiation in a blue wavelength range; a luminous wheel arranged in the beam path of the radiation emitted by the laser apparatus; a first beam splitter arranged in the beam path of the radiation emitted by the laser apparatus between the laser apparatus and the luminous wheel; a focusing apparatus arranged in the beam path of the radiation emitted by the laser apparatus between the first beam splitter and the luminous wheel; and at least one polarization manipulation apparatus, arranged in the beam path of the radiation emitted by the laser apparatus between the first beam splitter and the luminous wheel, which is adapted to rotate the polarization of radiation that has passed through it twice in different directions through 90°, wherein the first beam splitter is arranged in the beam path of radiation in the blue wavelength range which has passed twice through the polarization manipulation apparatus in different directions. | ||
| 地址 | Munich DE | ||