发明名称 AUTOFOCUSING CAMERA
摘要 PROBLEM TO BE SOLVED: To provide an autofocusing camera capable of preventing wasteful AF preliminary irradiation. SOLUTION: This autofocusing camera is equipped with a range-finding means equipped with a range-finding sensor receiving and integrating subject light and measuring a subject distance by making the range-finding sensor perform integrating operation, a preliminary irradiation means for irradiating a subject with auxiliary light for range-finding, a decision means for deciding whether or not the AF preliminary irradiation by the preliminary irradiation means is required based on the variation of the integrated value of the range- finding sensor, and a control means for making the preliminary irradiation means perform the AF preliminary irradiation at the time of integration by the range-finding sensor when the decision means decides that the AF preliminary irradiation is required.
申请公布号 JP2002277728(A) 申请公布日期 2002.09.25
申请号 JP20010079074 申请日期 2001.03.19
申请人 ASAHI OPTICAL CO LTD 发明人 NAKAHARA NAOHITO
分类号 G01C3/06;G02B7/28;G02B7/34;G03B7/28;G03B13/36;G03B15/03;G03B15/05;(IPC1-7):G02B7/28 主分类号 G01C3/06
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