发明授权
- 专利标题: Screen and projection system
- 专利标题(中): 屏幕投影系统
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申请号: US12351296申请日: 2009-01-09
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公开(公告)号: US07869126B2公开(公告)日: 2011-01-11
- 发明人: Koichi Akiyama
- 申请人: Koichi Akiyama
- 申请人地址: JP Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 优先权: JP2008-034115 20080215
- 主分类号: G03B21/60
- IPC分类号: G03B21/60
摘要:
A screen includes a screen sheet including a lens array having a plurality of element lenses arranged in a two-dimensional plane on the front side of the screen, a plurality of reflection surfaces disposed on the backside of the lens array, the plurality of reflection surfaces inclined to the two-dimensional plane, and a plurality of scattering portions that scatter the light directed from the plurality of reflection surfaces toward the front side of the screen. At least one of the plurality of element lenses is a combined lens comprised of a set of two lens portions offset from each other obtained by relatively shifting optical axes of the lens portions, and the reflection surfaces correspond to the respective combined lenses.
公开/授权文献
- US20090207488A1 SCREEN AND PROJECTION SYSTEM 公开/授权日:2009-08-20
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