发明授权
US08242425B2 Projector having first and second lamps with an illumination control device for turning on lamp having higher contrast with respect to a light modulation device and method of controlling lighting thereof
有权
投影仪具有第一和第二灯，其具有用于打开具有相对于光调制装置的较高对比度的灯的照明控制装置及其照明控制方法
- 专利标题： Projector having first and second lamps with an illumination control device for turning on lamp having higher contrast with respect to a light modulation device and method of controlling lighting thereof
- 专利标题（中）： 投影仪具有第一和第二灯，其具有用于打开具有相对于光调制装置的较高对比度的灯的照明控制装置及其照明控制方法
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申请号： US12700505申请日： 2010-02-04
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公开(公告)号： US08242425B2公开(公告)日： 2012-08-14
- 发明人: Yuichiro Matsumoto , Osamu Fujimaki , Takeshi Takezawa
- 申请人： Yuichiro Matsumoto , Osamu Fujimaki , Takeshi Takezawa
- 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： JP2009-032363 20090216
- 主分类号： G01J1/32
- IPC分类号： G01J1/32
摘要：
A projector includes: first and second lamps; a combining member configured to combine the light from the first and second lamps; a light modulation device arranged on the downstream side of an optical path of the combining member configured to provide higher modulation contrast with respect to the light emitted from the first lamp and entering in a state of being inclined in a first direction with respect to a system optical axis than modulation contrast with respect to the light emitted from the second lamp and entering in a state of being inclined in a second direction; and an illumination control device configured to turn ON the first lamp having the higher contrast with respect to the light modulation device on a priority basis for illumination of the light modulation device in a one-lamp mode in which only one of the first and second lamps is turned ON.
公开/授权文献
- US20100208212A1 PROJECTOR AND METHOD OF CONTROLLING LIGHTING THEREOF 公开/授权日：2010-08-19
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