Image exposure apparatus using CRT as exposure light source

Details Image exposure apparatus using CRT as exposure light source Image exposure apparatus using CRT as exposure light source

1990-04-09

1991-08-20

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

346110R, 358 75, G01D 1514, H04N 123, H04N 146, B41J 2435

Patent

active

050419145

ABSTRACT:
An image exposure apparatus exposes a photosensitive recording medium to an image corresponding to an image displayed on the screen of a cathode-ray tube which is used as a light source. A video image detector substantially detects whether there is a video image supplied to the cathode-ray tube or not. A microprocessor starts an exposure in response to an exposure command given by an exposure command switch only when it is detected by the video image detector that there is a video signal.

REFERENCES:
patent: 4185198 (1980-01-01), Fujimoto
patent: 4305098 (1981-12-01), Mitchell

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