Exposure apparatus for color cathode ray tubes

Details Exposure apparatus for color cathode ray tubes Exposure apparatus for color cathode ray tubes

1989-12-29

1991-06-18

Berman, Jack I.

Radiant energy

Irradiation of objects or material

250504R, 2504941, 313475, 354 1, G03B 2700

Patent

active

050251660

ABSTRACT:
An exposure apparatus for color cathode ray tube having a single faceplate with a phosphor screen on an inner surface thereof comprises light source device including an initial light source for emitting ultraviolet light, exposure device including a base for supporting the faceplate with a photosensitive layer having a plurality of sub-regions to form the phosphor screen, a plurality of secondary light sources emitting exposure light for exposing corresponding sub-regions and moving device for shifting position of the secondary light sources, and light distribution device for equally distributing a part of ultraviolet light emitted from the light source device to the secondary light sources.

REFERENCES:
patent: 3043179 (1962-07-01), Dunn
patent: 3648576 (1972-03-01), Mears et al.
patent: 4523806 (1985-06-01), Kojima et al.
patent: 4576435 (1986-03-01), Nishioka

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