发明名称 CAMERA
摘要 PURPOSE:To convert quickly and easily a set value by providing a shutter speed and diaphragm value display device in a finder, and also providing a shifting means for shifting a display value of one of them to a desired value in accordance with the indication of a direction indicating device in the finder. CONSTITUTION:A photographer can select easily the combination of a desired shutter second time and a diaphragm value by confirming visually a correct diaphragm value displayed in a finder and a shutter second time value displayed by a shutter display disk 354, after turning on a sub-power source switch SW1'. Subsequently, when the shutter button of a camera is pushed, first of all, a power source switch SW1 turns on, a power source controlling transistor E1 also turns on, an electric conduction is fed to a circuit. A luminance of an object to be photographed is made incident on a photodetector P.D. through a lens, and a logarithmically compressed value VBV0 (Bv0=Bv-Av0-Avc) of the luminance of the object to be photographed is outputted from a photometric circuit L.
申请公布号 JPS60173531(A) 申请公布日期 1985.09.06
申请号 JP19840272373 申请日期 1984.12.24
申请人 CANON KK 发明人 AIZAWA HIROSHI;UCHITOI MASANORI;KOUZUKI SUSUMU;DATE NOBUAKI;SHIMIZU MASAMI;TAKISHIMA YOSHIYUKI
分类号 G03B7/0805;G03B17/18 主分类号 G03B7/0805
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