发明名称 |
MULTI-AREA BRIGHTNESS MEASURING APPARATUS |
摘要 |
A multi-area brightness measuring apparatus for a camera, which measures the brightness of an object in a center area of a photographing area and a circumferential area surrounding the center area to detect whether the object in the center area is in follow light state or in back light state in order to correct the exposure value. The exposure also can be controlled in accordance with the magnification, i.e. in accordance with the surface area of a main object occupying the center area. |
申请公布号 |
GB2221764(B) |
申请公布日期 |
1992.11.25 |
申请号 |
GB19890015623 |
申请日期 |
1989.07.07 |
申请人 |
* ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
OSAMU * SATOH;ISAMU * HIRAI;MASAHIRO * NAKATA |
分类号 |
G03B7/28;G03B7/087 |
主分类号 |
G03B7/28 |
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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