发明授权
- 专利标题： Projector and control method therefor to suppress flickering
- 专利标题（中）： 用于抑制闪烁的投影仪和控制方法
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申请号： US12029106申请日： 2008-02-11
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公开(公告)号： US08534847B2公开(公告)日： 2013-09-17
- 发明人: Toshiyuki Shirasu , Daizo Oka , Hiroyasu Morikawa
- 申请人： Toshiyuki Shirasu , Daizo Oka , Hiroyasu Morikawa
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JPP2007-060440 20070309
- 主分类号： G03B21/20
- IPC分类号： G03B21/20
摘要：
Disclosed herein is a projector for projecting an image to a screen, including: a lamp configured to emit light; an elliptic reflecting mirror configured to reflect and condense the light from the lamp; a sensor configured to detect the amount of the light reflected and condensed by the elliptic reflecting mirror; a lamp power supply configured to supply power to the lamp to drive the lamp; and a control circuit configured to successively increase the power to be supplied from the lamp power supply to the lamp until after a variation value of the amount of the reflected light detected by the sensor becomes equal to or lower than a predetermined threshold value.
公开/授权文献
- US20080218703A1 PROJECTOR AND CONTROL METHOD THEREFOR 公开/授权日：2008-09-11
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