发明名称 |
VARIABLE COLOR-OUTPUT STROBE |
摘要 |
VARIABLE COLOR-OUTPUT STROBE A single flash discharge tube system is provided that is capable of emitting artificial light of a controlled and variable spectral output to compensate for photographic film color variations and/or extremes in scene color temperature. The flash tube contains a mixture of two or more gasses with each gas in the tube having a different ionization potential. When ionized, each gas or combination thereof produces light having a different spectral output. The ionization of each gas is controlled by a trigger voltage applied to the flash tube in accordance with a code on a film container indicative of the color balance of film contained therein and/or sensing apparatus that determines scene color temperature.
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申请公布号 |
CA2001953(A1) |
申请公布日期 |
1990.06.27 |
申请号 |
CA19892001953 |
申请日期 |
1989.11.01 |
申请人 |
POLAROID CORPORATION |
发明人 |
PETRAKOS, STEPHANIE;GAEWSKY, JOHN P. |
分类号 |
G03B15/05;H01J61/16;H01J61/80;H01J61/95;H05B41/32;(IPC1-7):H05B41/30;H01J61/90 |
主分类号 |
G03B15/05 |
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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