发明名称 Flashlight photography preparing device of a camera
摘要 In a camera provided with a flash unit, a device for limiting the preparatory operation for flashlight emission of said flash unit comprises metering means for detecting that the brightness of an object to be photographed is lower than predetermined brightness and producing a detection signal, means operable to start photographing, the operable means having a first operation stage for producing a first signal and a second operation stage for producing a second signal subsequently to the first operation stage, the photographing being started in response to the second signal, and means including timer means responsive to the first signal to count a predetermined time set shorter than the time required from after the first signal is produced until photographing is started in response to the second signal, said means causing the flash unit to effect the preparatory operation for flashlight emission in response to the detection signal of the metering means produced while the timer means is effecting the time count.
申请公布号 US4475801(A) 申请公布日期 1984.10.09
申请号 US19830516727 申请日期 1983.07.25
申请人 NIPPON KOGAKU K.K. 发明人 OTSUBO, YOSHIAKI;WAKABAYASHI, HIROSHI;OTANI, TADASHI
分类号 G02B7/28;G03B3/00;G03B7/00;G03B7/16;G03B13/36;G03B15/00;G03B15/03;G03B15/05;(IPC1-7):G03B15/03 主分类号 G02B7/28
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