发明名称 |
IMPROVEMENTS IN OR RELATING TO OVEREXPOSURE INDICATORS FOR AUTOMATIC ELECTRONIC FLASH FOR PHOTOGRAPHY |
摘要 |
<p>An overexposure indicator for an automatic electronic flash produces a time factor signal of a given duration after an emission terminate signal is delivered to an electronic flash. When the amount of flashlight emitted by the electronic flash reaches an arbitrary multiple of a proper value of exposure, a detection output is produced. The indicator indicates the occurrence of an overexposure whenever detection output is produced during the time the time factor signal is present.</p> |
申请公布号 |
GB2108690(A) |
申请公布日期 |
1983.05.18 |
申请号 |
GB19820029909 |
申请日期 |
1982.10.20 |
申请人 |
* OLYMPUS OPTICAL COMPANY LTD |
发明人 |
KAZUNORI * MIZOKAMI |
分类号 |
G03B15/05;G03B17/18;H05B41/30;(IPC1-7):03B7/16 |
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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