发明名称 Automatic focusing cameras
摘要 An automatic focusing camera, after determining composition of an object being photographed within a range finding frame disposed at the center of a finder, repeats operations of detecting a range difference between an image forming position and a predetermined focusing position of the object and of storing the detected range difference, before a shutter release button is half-depressed, and, after being half-depressed, drives a taking lens in accordance with a range difference based on the latest information stored immediately before the half-depression to stop the taking lens at the predetermined focusing position, thereby enabling the lens setting without a time lag even when the object being photographed is in a low brightness.
申请公布号 US4816858(A) 申请公布日期 1989.03.28
申请号 US19880156999 申请日期 1988.02.17
申请人 OLYMPUS OPTICAL CO., LTD. 发明人 WATANABE, YOUJI;MATSUZAKI, MINORU;ITOH, JUNICHI
分类号 G02B7/28;(IPC1-7):G03B3/00 主分类号 G02B7/28
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