发明名称 Camera provided with automatic focus detector
摘要 A camera provided with automatic focus detector is disclosed. The automatic focus detector drives a photographing lens toward the in-focus position by lens driving means in accordance with focus detection signal repeatedly put out from focus detecting means. The present invention is directed to improvement in focusing operation of such camera. Said lens driving means is allowed to drive the photographing lens toward the in-focus position only when the focus detection information signal continues to be constant longer than a predetermined time length. At the same time, the driving state of the photographing lens by said lens driving means is detected and display means is controlled by the detection signal to display the state of focusing now present.
申请公布号 US4335942(A) 申请公布日期 1982.06.22
申请号 US19800199262 申请日期 1980.10.21
申请人 CANON KABUSHIKI KAISHA 发明人 TSUNEKAWA, TOKUICHI;AMIKURA, TAKASHI
分类号 G02B7/30;(IPC1-7):G03B7/08 主分类号 G02B7/30
代理机构 代理人
主权项
地址