发明授权
- 专利标题: Autofocus camera with flash unit
- 专利标题(中): 带闪光灯的自动对焦相机
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申请号: US467134申请日: 1990-01-18
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公开(公告)号: US5017955A公开(公告)日: 1991-05-21
- 发明人: Takaaki Kotani
- 申请人: Takaaki Kotani
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX1-9193 19890118
- 主分类号: G02B7/28
- IPC分类号: G02B7/28 ; G03B7/16 ; G03B13/36 ; G03B15/03 ; G03B15/05
摘要:
A camera is provided with a data table memory which stores control data for controlling not only the position of a taking lens but also the aperture size of a program shutter. The data also determines whether a flash unit is to be actuated depending on the subject distance as well as the subject brightness, so that the depth of field and hence the focusable range can be enlarged by stopping down the aperture and using a flash light. The data table memory further stores flash timing data for controlling the timing of flashing of the flash unit.
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