发明授权
- 专利标题： Projection type video display apparatus
- 专利标题（中）： 投影式视频显示装置
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申请号： US11197436申请日： 2005-08-05
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公开(公告)号： US07325933B2公开(公告)日： 2008-02-05
- 发明人: Naoki Kaise , Koji Muraoka , Toru Kirimura
- 申请人： Naoki Kaise , Koji Muraoka , Toru Kirimura
- 申请人地址： JP Osaka
- 专利权人： Sanyo Electric Co., Ltd
- 当前专利权人： Sanyo Electric Co., Ltd
- 当前专利权人地址： JP Osaka
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP.
- 优先权： JP2004-232211 20040809; JP2004-273565 20040921
- 主分类号： G03B21/14
- IPC分类号： G03B21/14
摘要：
A projection type video display apparatus in which a display device transmits light emitted from a light source to project a video written into the display device is characterized by comprising person detection means for detecting a person who exists within a projected video area, and control means for changing the state of the projected video when the person detection means detects the person.
公开/授权文献
- US20060028624A1 Projection type video display apparatus 公开/授权日：2006-02-09
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