发明授权
US08506093B2 Projector, method that adjusts luminance of projected image, and program
有权
投影仪，调整投影图像的亮度和程序的方法
- 专利标题： Projector, method that adjusts luminance of projected image, and program
- 专利标题（中）： 投影仪，调整投影图像的亮度和程序的方法
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申请号： US12998468申请日： 2008-10-31
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公开(公告)号： US08506093B2公开(公告)日： 2013-08-13
- 发明人: Takeshi Kato
- 申请人： Takeshi Kato
- 申请人地址： JP Tokyo
- 专利权人： NEC Display Solutions, Ltd.
- 当前专利权人： NEC Display Solutions, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： McGinn IP Law Group, PLLC
- 国际申请： PCT/JP2008/069934 WO 20081031
- 国际公布： WO2010/050058 WO 20100506
- 主分类号： G03B21/14
- IPC分类号： G03B21/14
摘要：
A projector that projects an image to a projection object using light emitted from a light source lamp, including a light adjustment sensor that measures the projection distance to the projection object and the intensity of reflected light from the projection object; a zoom position sensor that detects a zoom ratio; and a control section that adjusts the intensity of light emitted from the light source lamp based on the projection distance and the reflected light intensity measured by the adjustment sensor and the zoom ratio detected by the zoom position sensor so as to keep the luminance of a projection image displayed on the projection object constant.
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