发明名称 |
FILM VIDEO PLAYER WITH ELECTRONIC STROBE LIGHT |
摘要 |
A film video player for producing a standard television signal from photographic film includes an image sensor for sensing a film image illuminated by a pulse of light from an electronic strobe light. The electronic strobe light includes a high voltage power supply with a voltage greater than the minimum ignition voltage of a flash tube in the strobe light for igniting an arc in the flash tube, a low voltage power supply having a voltage less than the minimum ignition voltage of the flash tube for producing an extended pulse of light of constant intensity, means including a photocell for sensing the quantity of light produced by the flash tube and including a control device in series with the flash tube for terminating the pulse of light after a predetermined quantity of light is produced, and means for dispersing the light from the flash tube to produce more uniform illumination. The film video player has the advantage of providing a video signal free from visible flicker, of uniform intensity, and constant color balance. A further advantage is that the video player generates very little heat from its electronic strobe light source and therefore requires minimal cooling. |
申请公布号 |
DE3477333(D1) |
申请公布日期 |
1989.04.20 |
申请号 |
DE19843477333 |
申请日期 |
1984.10.29 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
FRANK, LEE, FITZPATRICK;KAISER, DONALD, FRANK |
分类号 |
G03B15/05;G03B27/72;H04N3/36;H04N5/253;H05B41/34;(IPC1-7):H04N3/36 |
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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