发明名称 |
Automatic focus control system and camera using same |
摘要 |
Disclosed is an automatic focus control system including an active type automatic focusing device. The system further includes detecting apparatus which produces a characteristic signal when detecting that an image forming optical apparatus is in an out-of-focus condition, and control means which renders the automatic focusing device in an inoperative condition when the optical apparatus reaches an in-focus condition. It also renders the focusing device in an operative condition in response to the characteristic signal produced by the detecting apparatus.
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申请公布号 |
US4591919(A) |
申请公布日期 |
1986.05.27 |
申请号 |
US19830536369 |
申请日期 |
1983.09.27 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KANEDA, NAOYA;TOYAMA, MASAMICHI;KOZUKI, SUSUMU;KOHTANI, YUTAKA;FUJIWARA, AKIHIRO |
分类号 |
G03B13/36;G02B7/28;G02B7/32;H04N5/232;(IPC1-7):H04N5/232;G01J1/20;G01J1/36;G03B13/18 |
主分类号 |
G03B13/36 |
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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