| 发明名称 |
Contrast sensing apparatus for automatic focus systems |
| 摘要 |
An improved automatic focus system wherein circuitry is provided to inhibit the focusing function when the scene being viewed provides too little contrast for satisfactory operation.
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| 申请公布号 |
US4247762(A) |
申请公布日期 |
1981.01.27 |
| 申请号 |
US19780965361 |
申请日期 |
1978.11.30 |
| 申请人 |
HONEYWELL INC. |
发明人 |
WILWERDING, DENNIS J. |
| 分类号 |
G02B7/30;(IPC1-7):G01J1/36 |
主分类号 |
G02B7/30 |
| 代理机构 |
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