发明名称 |
System for selectively controlling the spectral make-up of visible light from a source thereof |
摘要 |
A preferred photographic printer (10) includes light filters (52, 54, 56) which can be shifted to selected positions for filtering respective spectral components from selected portions of a light beam (100) in order to vary the spectral make-up of the light beam, and further includes a preferred metal halide lamp (48) which produces a spectral output with substantial portions in the visible band.
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申请公布号 |
US5333034(A) |
申请公布日期 |
1994.07.26 |
申请号 |
US19920829779 |
申请日期 |
1992.01.31 |
申请人 |
BREMSON DATA SYSTEMS, INC. |
发明人 |
GU, XUE M.;JOHNSON, DAVID B.;HAINES, MICHAEL S.;ARMSTRONG, LOUIS P. |
分类号 |
G03B27/54;G03B27/73;(IPC1-7):G03B27/32;G03B27/72 |
主分类号 |
G03B27/54 |
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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