发明名称 |
STYRANORDNING FOR EXPONERINGSNIVAN I EN FOTOKOPIATOR |
摘要 |
Automatic control of exposure level and contrast correction for a photographic printer is disclosed. The printer uses dynamic masking achieved by modulating the intensity and velocity of a CRT scanning spot. A prescan is employed to evaluate the negative and establish exposure level and contrast grade excursion limits for the subsequent exposure. Different control systems are disclosed for contact printing and projection printing. |
申请公布号 |
SE447425(B) |
申请公布日期 |
1986.11.10 |
申请号 |
SE19820000434 |
申请日期 |
1982.01.27 |
申请人 |
LOGETRONICS INC |
发明人 |
W L * MCINTOSH |
分类号 |
G03B27/80;G03B27/72;G03G15/04;G03G15/043;G03G21/00;(IPC1-7):G03B27/18 |
主分类号 |
G03B27/80 |
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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