Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1980-07-11
1983-02-15
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
313 94, H01J 3150
Patent
active
043743250
ABSTRACT:
An image intensifier device is provided with color filters on its input and output surfaces so as to intensify a color image without losing the color content. Each filter consists of an array of red, green and blue elements and these elements are precisely aligned in both input and output filters to avoid degradation of the color content. A method of producing the output filter in situ is described to provide the required accuracy of alignment.
REFERENCES:
patent: 3231746 (1966-01-01), Goodrich
patent: 3267283 (1966-08-01), Kapany
patent: 3863093 (1975-01-01), Orthuber
English Electric Valve Company Limited
Nelms David C.
Westin Edward P.
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