发明授权
- 专利标题： Camera with a line-of-sight detecting device
- 专利标题（中）： 摄像机配有视线检测装置
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申请号： US259128申请日： 1994-06-13
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公开(公告)号： US5640610A公开(公告)日： 1997-06-17
- 发明人: Shigemasa Sato , Toshimi Watanabe , Kenji Tazaki
- 申请人： Shigemasa Sato , Toshimi Watanabe , Kenji Tazaki
- 申请人地址： JPX Tokyo
- 专利权人： Nikon Corporation
- 当前专利权人： Nikon Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-062373 19920318
- 主分类号： G03B13/02
- IPC分类号： G03B13/02
摘要：
A camera with a line-of-sight detecting device, having a light source illuminating an eye of a photographer with light; a conversion device converting reflected light from the illuminated eye to an output corresponding to the intensity of the reflected light; and an eye gazing point determination system identifying an eye-gazing point of the photographer when an output difference or an output ratio between a peak output and a background output of the conversion device is greater than a predetermined value and when the magnitude of a peak output from the conversion device is within a predetermined range.
公开/授权文献
- US4849695A Null-detection magnetometers 公开/授权日：1989-07-18