发明授权
- 专利标题: Projector, projection unit, and interactive board
- 专利标题(中): 投影机,投影机和交互式电路板
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申请号: US13428593申请日: 2012-03-23
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公开(公告)号: US08955981B2公开(公告)日: 2015-02-17
- 发明人: Eiji Morikuni
- 申请人: Eiji Morikuni
- 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 PLC
- 优先权: JP2011-081648 20110401; JP2011-117677 20110526
- 主分类号: G03B21/14
- IPC分类号: G03B21/14 ; G03B21/28 ; G02B17/08 ; G03B21/62 ; G03B21/10 ; G03B21/20
摘要:
A projector includes: a main body section including a light source, a display surface illuminated by light from the light source, and an emission optical system adapted to emit light from the display surface; and a projection unit adapted to project light from the display surface toward an irradiated surface, the light being emitted from the emission optical system, wherein the projection unit includes an image plane control optical system adapted to change the light emitted from the emission optical system to light forming an image plane of the display surface tilted with respect to the display surface, and an angle-widening mirror with a concave surface having positive power and adapted to reflect light forming an image plane of the display surface tilted with respect to the display surface and widen an angle of the light.
公开/授权文献
- US20120249979A1 PROJECTOR, PROJECTION UNIT, AND INTERACTIVE BOARD 公开/授权日:2012-10-04