发明名称 |
Optical apparatus having visual axis detector and determining whether eyeglasses are worn |
摘要 |
An optical apparatus includes a view finder through which a subject is observed, a visual axis detection device for detecting a direction of a visual axis of an observer who is looking into the view finder, and a determination device for determining whether or not the observer is wearing eyeglasses.
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申请公布号 |
US5182443(A) |
申请公布日期 |
1993.01.26 |
申请号 |
US19910767665 |
申请日期 |
1991.09.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SUDA, YASUO;NAGANO, AKIHIKO;KONISHI, KAZUKI |
分类号 |
G02B7/34;G03B13/02 |
主分类号 |
G02B7/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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