Video camera image tube burn-in prevention apparatus

Details Video camera image tube burn-in prevention apparatus Video camera image tube burn-in prevention apparatus

1983-11-10

1985-01-08

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358220, 358221, 354441, H04N 5193

Patent

active

044929820

ABSTRACT:
A video camera having an image tube and a detector for detecting the operation state of the image tube. The light intensity from an object to the image tube is controlled in accordance with the output signal from said detector.

REFERENCES:
patent: 2901539 (1959-08-01), Morgan
patent: 3553363 (1971-01-01), Anderson
patent: 3558809 (1971-01-01), Aoki
patent: 3586773 (1971-06-01), Niemyer
patent: 3637937 (1972-01-01), Deveson
patent: 3652792 (1972-03-01), Usagawa
patent: 3691302 (1972-09-01), Gaebele
patent: 3934266 (1976-01-01), Shinozoki
patent: 4141043 (1979-02-01), Liu
patent: 4202014 (1980-05-01), Gilligan
patent: 4300167 (1981-11-01), Miller
patent: 4306251 (1981-12-01), Safar

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