发明授权
- 专利标题: Optical system with high contrast
- 专利标题(中): 光学系统具有高对比度
-
申请号: US12744457申请日: 2008-11-10
-
公开(公告)号: US08405895B2公开(公告)日: 2013-03-26
- 发明人: Guido Hitschmann , Kay-Uwe Schenke
- 申请人: Guido Hitschmann , Kay-Uwe Schenke
- 申请人地址: US MN St. Paul
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: US MN St. Paul
- 代理商 Robert S. Moshrefzadeh
- 国际申请: PCT/US2008/082949 WO 20081110
- 国际公布: WO2009/070432 WO 20090604
- 主分类号: G02B26/00
- IPC分类号: G02B26/00
摘要:
An optical system is disclosed that includes a housing that has an interior, a reflective interior surface, and a first opening. The optical system further includes a spatial light modulator that is disposed proximate the first opening and a light source that is disposed within the interior of the housing. The spatial light modulator modulates the light that is emitted by the light source to form image rays. The optical system further includes a first light redirecting film that is disposed proximate the first opening between the spatial light modulator and the light source. The first light redirecting film recycles at least a portion of the light that is emitted by the light source. The optical system further includes an optically absorptive film that is disposed proximate the first opening between the spatial light modulator and the viewing position. The optically absorptive film receives the image rays from the spatial light modulator and displays the received image rays to the viewing position.
公开/授权文献
- US20100328749A1 OPTICAL SYSTEM WITH HIGH CONTRAST 公开/授权日:2010-12-30
信息查询