发明公开
- 专利标题: EXIT PUPIL EXPANDERS WITH SPHERICAL AND ASPHERIC SUBSTRATES
- 专利标题(中): 退出与球形和非球面基材的瞳孔扩张器
-
申请号: EP07849027.3申请日: 2007-12-17
-
公开(公告)号: EP2229603A1公开(公告)日: 2010-09-22
- 发明人: SAARIKKO, Pasi , LEVOLA, Tapani
- 申请人: Nokia Corporation
- 申请人地址: Keilalahdentie 4 02150 Espoo FI
- 专利权人: Nokia Corporation
- 当前专利权人: Nokia Corporation
- 当前专利权人地址: Keilalahdentie 4 02150 Espoo FI
- 代理机构: Higgin, Paul
- 国际公布: WO2009077803 20090625
- 主分类号: G02B27/01
- IPC分类号: G02B27/01
摘要:
The specification and drawings present a new apparatus and method for using exit pupil expanders (EPE) with spherical or aspheric non-flat substrates and a plurality of diffractive elements for expanding the exit pupil of a display for viewing in order to reduce image spreading. This can also enable improved image resolution and utilization of shorter focus distances.
公开/授权文献
- EP2229603B1 EXIT PUPIL EXPANDERS WITH SPHERICAL AND ASPHERIC SUBSTRATES 公开/授权日:2012-08-29
信息查询