发明授权
- 专利标题: Projector
- 专利标题(中): 投影机
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申请号: US12897343申请日: 2010-10-04
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公开(公告)号: US08523363B2公开(公告)日: 2013-09-03
- 发明人: Susumu Aruga
- 申请人: Susumu Aruga
- 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: JP2009-235242 20091009; JP2010-181294 20100813
- 主分类号: G03B21/28
- IPC分类号: G03B21/28 ; H01K1/30
摘要:
A projector includes: a light source that emits light having an asymmetric illuminance distribution; a light modulation device that modulates the light emitted from the light source; and an optical member disposed in an optical path between the light source and the light modulation device, the optical member changing the illuminance distribution of the light from the light source, wherein the optical member changes the illuminance distribution of the light passing therethrough in such a way that a highest illuminance area in the illuminance distribution of the light after passing through the optical member is shifted toward the center of the optical member as compared with the position of the highest illuminance area in the illuminance distribution of the light before incident on the optical member.
公开/授权文献
- US20110085143A1 PROJECTOR 公开/授权日:2011-04-14
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