| 发明名称 |
Enlarger for use in photography |
| 摘要 |
An enlarger for copying a film is provided having two modes of operation. A first mode of operation permits preliminary adjustment of the focus of the lens system while the second mode of operation permits an actual exposure, the first mode of operation being inhibited during the actual exposure of the film in the second mode.
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| 申请公布号 |
US4704025(A) |
申请公布日期 |
1987.11.03 |
| 申请号 |
US19850794572 |
申请日期 |
1985.11.04 |
| 申请人 |
MINOLTA CAMERA KABUSHIKI KAISHA |
发明人 |
YUASA, YOSHIO;YASUMOTO, HIDETOSHI;NARUSE, KAZUHIKO;KAWAGOE, NOBUKAZU;INABA, MASAHITO |
| 分类号 |
G03B27/46;G03B27/73;(IPC1-7):G03B27/80 |
主分类号 |
G03B27/46 |
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