| 发明名称 |
DIAPHRAGM DEVICE FOR VARIABLE MAGNIFICATION COPIER OF SLIT EXPOSURE TYPE |
| 摘要 |
PURPOSE:To maintain an exposure light amount to be constant by changing the slit width while interlocked with the change action between correct image copy of the exposure optical system and mirror image copy of the same system and variable magnification action. |
| 申请公布号 |
JPS533218(A) |
申请公布日期 |
1978.01.12 |
| 申请号 |
JP19760076859 |
申请日期 |
1976.06.29 |
| 申请人 |
RICOH KK |
发明人 |
SATOMI TOYOKAZU |
| 分类号 |
G03B27/34;G03B27/72;G03G15/04;G03G21/00 |
主分类号 |
G03B27/34 |
| 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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