| 发明名称 |
AUTOMATIC FOCUS ADJUSTING DEVICE |
| 摘要 |
PURPOSE:To make narrow the dynamic range of a signal processing circuit by regulating the brightness signal level of a group of light receiving elements for producing image contrast information for focal adjustment. |
| 申请公布号 |
JPS5440633(A) |
申请公布日期 |
1979.03.30 |
| 申请号 |
JP19770106283 |
申请日期 |
1977.09.06 |
| 申请人 |
OLYMPUS OPTICAL CO |
发明人 |
AOKI MASAHIRO |
| 分类号 |
G03B13/36;G02B7/32;G03B3/00 |
主分类号 |
G03B13/36 |
| 代理机构 |
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代理人 |
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| 地址 |
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