发明授权
- 专利标题: Camera with a visual line position detection device and method
- 专利标题(中): 相机具有视线位置检测装置和方法
-
申请号: US791729申请日: 1997-01-31
-
公开(公告)号: US5819119A公开(公告)日: 1998-10-06
- 发明人: Kazuharu Imafuji , Hidehiro Ogawa , Toru Kosaka , Yoshio Matsuzawa
- 申请人: Kazuharu Imafuji , Hidehiro Ogawa , Toru Kosaka , Yoshio Matsuzawa
- 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: JPX6-103991 19940518
- 主分类号: G02B7/28
- IPC分类号: G02B7/28 ; G03B7/08 ; G03B7/28 ; G03B13/02 ; G03B7/00 ; G03B13/00
摘要:
A camera with a visual line position detection device is capable of shortening the time required for auto focus detection and capable of more accurate selection of the focus detection point. The camera includes a focus detection device to output the results of distance measurements at a plurality of points where focus detection is possible and to detect focus for one of these points. A liquid crystal display device displays on a screen specified symbols overlapping the subject image on the positions corresponding to each of the points. A microprocessor accepts the results of the distance measurements from the focus detection system and selects one of the points based on the photographer visual line position as the point for focus detection among all the points whose distances are measured and on which focus detection is possible, excluding the points with an infinite focus distance.
公开/授权文献
信息查询