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.
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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 |
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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