| 发明名称 |
FOCUS ADJUSTING DEVICE FOR OPTICAL SYSTEMS |
| 摘要 |
PURPOSE:To automatically adjust focusing with high precision by detecting an optical focusing condition by means of a comparison of counted values of pulses that are generated through two systems. |
| 申请公布号 |
JPS51142318(A) |
申请公布日期 |
1976.12.07 |
| 申请号 |
JP19750060006 |
申请日期 |
1975.05.20 |
| 申请人 |
ASAHI KOUGAKU KOUGIYOU KK |
发明人 |
IBUSAWA TSUKUMO |
| 分类号 |
G03B13/36;G02B7/32;G02B7/36 |
主分类号 |
G03B13/36 |
| 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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