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 |
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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