发明名称 Automatic focusing method
摘要 An automatic focusing method is disclosed with which a plurality of selected objects can be held within the focusing range of the photographing lens of a camera. For each of object for which it is desired to keep within the focusing range, a focusing detection operation is carried out to provide defocusing data for the object. A weighted mean value of the defocusing data is employed as a common focal position.
申请公布号 US5249011(A) 申请公布日期 1993.09.28
申请号 US19900518262 申请日期 1990.05.07
申请人 ASAHI KOGAKU KOGYO K.K. 发明人 SAKAI, NARIYASU
分类号 G02B7/36 主分类号 G02B7/36
代理机构 代理人
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