Exposure device for the manufacture of cathode-ray tubes for dis

Details Exposure device for the manufacture of cathode-ray tubes for dis Exposure device for the manufacture of cathode-ray tubes for dis

1976-12-16

1980-09-16

Gonzales, John

G03B 4100

Patent

active

042226422

ABSTRACT:
An exposure device for the manufacture of cathode-ray tubes for displaying colored pictures comprises an elongate light source shaped so that the amount of light radiated by said light source increases linearly from zero at the ends of the light source to a maximum at the center of the light source, so that a triangular light profile is obtained. The device may be used to manufacture cathode-ray tubes wherein the display screen is composed of triplets of phosphor lines of very constant width.

REFERENCES:
patent: 3587417 (1971-06-01), Balder et al.
patent: 3767956 (1973-10-01), Bauer
patent: 3780629 (1973-12-01), Barten et al.
patent: 4025811 (1977-05-01), Van Nes

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