发明名称 BELICHTUNGSZEITSYNCHRONISATIONSWARNVORRICHTUNG FUER EINE KAMERA
摘要 <p>A photographic camera for use in conjunction with a flash device is provided with a warning apparatus which provides a warning signal when a selected shutter speed is beyond a shutter speed range synchronizable with the light emission from the flash device. The warning apparatus comprises a circuit for providing a signal indicating that the selected shutter speed is faster than a limit shutter speed, beyond which the shutter cannot be synchronized with the flash. A charge detection circuit detects the completion of charging of the flash device. A warning indication that the selected shutter speed is faster than the limit shutter speed is provided only upon completion of charging of the flash device, thereby conserving battery power.</p>
申请公布号 DE2830822(A1) 申请公布日期 1979.02.01
申请号 DE19782830822 申请日期 1978.07.13
申请人 NIPPON KOGAKU K.K. 发明人 GOTO,TETSURO;HASEGAWA,HIROSHI
分类号 G03B15/05;(IPC1-7):G03B15/05 主分类号 G03B15/05
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