| 发明名称 |
FOCAL POINT DETECTING SYSTEM |
| 摘要 |
PURPOSE:To improve the detecting accuracy with the use of a simple construction by detecting the fact that the level difference among the picture elements scanned horizontally and vertically become the maximum. |
| 申请公布号 |
JPS5397826(A) |
申请公布日期 |
1978.08.26 |
| 申请号 |
JP19770012309 |
申请日期 |
1977.02.07 |
| 申请人 |
RICOH KK |
发明人 |
HORIIE MASANORI;SHIBATA ISAMU;MAEDA IKUO |
| 分类号 |
G03B13/36;G02B7/36;G03B3/00 |
主分类号 |
G03B13/36 |
| 代理机构 |
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代理人 |
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