Cathode ray tube screen exposure system

Details Cathode ray tube screen exposure system Cathode ray tube screen exposure system

1980-03-20

1981-03-17

Griffin, Donald A.

G03C 500

Patent

active

042563909

ABSTRACT:
The invention relates to an improvement in the photo-exposure system utilized in the forming of stripe-patterned screens on the viewing panels of color cathode ray tubes. The versatile system incorporates an adjustable electronically controlled cam arrangement for achieving desired oscillation of the exposure light source. A cam associated multi-apertured control disk initiates a pre-determined number of pulses which accurately control the degree of cam movement and resultant light source oscillation.

REFERENCES:
patent: 3259038 (1966-07-01), Burdick et al.
patent: 3890151 (1975-06-01), Suzuki et al.
patent: 4050080 (1977-09-01), Pawlikowski et al.
patent: 4122461 (1978-10-01), Morean et al.

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