发明名称 |
Variable color-output strobe for photographic apparatus |
摘要 |
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 |
US5109248(A) |
申请公布日期 |
1992.04.28 |
申请号 |
US19900586512 |
申请日期 |
1990.09.21 |
申请人 |
POLAROID CORPORATION |
发明人 |
PETRAKOS, STEPHANIE;GAEWSKY, JOHN P. |
分类号 |
H01J61/95;H05B41/32 |
主分类号 |
H01J61/95 |
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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