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2. 发明授权

US4475801A Flashlight photography preparing device of a camera 失效
标题翻译：相机的手电筒摄影准备装置
公开(公告)号：US4475801A
公开(公告)日：1984-10-09
申请号：US516727
申请日：1983-07-25
申请人： Yoshiaki Otsubo , Hiroshi Wakabayashi , Tadashi Otani
发明人： Yoshiaki Otsubo , Hiroshi Wakabayashi , Tadashi Otani
IPC分类号： G03B7/16 , G02B7/28 , G03B3/00 , G03B7/00 , G03B13/36 , G03B15/00 , G03B15/03 , G03B15/05
CPC分类号： G03B7/16 , G03B15/05 , G03B2215/0507
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.
摘要翻译：在设置有闪光灯组件的照相机中，用于限制所述闪光灯组件的手电筒发射的准备操作的装置包括用于检测被拍摄对象的亮度低于预定亮度并产生检测信号的计量装置，开始拍摄，具有用于产生第一信号的第一操作级和第二操作级的操作装置，用于在第一操作级之后产生第二信号，响应于第二信号开始拍摄，以及包括定时器装置响应于所述第一信号，计数比从所述第一信号产生之后所需的时间短的预定时间，以响应于所述第二信号开始拍摄，所述装置使所述闪光灯单元响应于手电筒发射的预备操作与定时器装置产生的计量装置的检测信号相关联影响时间计数。

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