| 发明名称 | Projector | ||
| 摘要 | A projector includes: a light modulation unit that modulates illumination light; a projection unit that projects image light modulated by the light modulation unit; and a holder that holds an optical filter and a cover in such a way that the optical filter and the cover can be alternately switched and positioned in an optical path on the light-exiting side of the projection unit. | ||
| 申请公布号 | US8876302(B2) | 申请公布日期 | 2014.11.04 |
| 申请号 | US200912544275 | 申请日期 | 2009.08.20 |
| 申请人 | Seiko Epson Corporation | 发明人 | Yanagisawa Hirotaka |
| 分类号 | G03B21/14 | 主分类号 | G03B21/14 |
| 代理机构 | ALG Intellectual Property, LLC | 代理人 | ALG Intellectual Property, LLC |
| 主权项 | 1. A projector comprising: a light modulation unit that modulates illumination light; a projection unit that projects image light modulated by the light modulation unit; and a holder that holds an optical filter and a cover in such a way that the optical filter and the cover can be alternately switched and positioned in an optical path on the light-exiting side of the projection unit, wherein: the cover includes at least a light-transmissive cover glass, andthe projector further comprises a display controller that adjusts how the light modulation unit modulates light in accordance with which of the optical filter and the cover glass is positioned in the optical path on the light exiting-side of the projection unit, such that the light modulation unit modulates light according to a first type of color correction when the optical filter is positioned in the optical path and the light modulation unit modulates light according to a second type of color correction when the cover glass is positioned in the optical path. | ||
| 地址 | Tokyo JP | ||