Phosphor screen exposure apparatus

Details Phosphor screen exposure apparatus Phosphor screen exposure apparatus

1978-01-25

1980-02-05

Gonzales, John

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250573, 313 24, G03B 4100

Patent

active

041870131

ABSTRACT:
An exposure apparatus which is used during the formation of the phosphor screen of a color picture tube includes a light quantity control unit in which the temperature of its light receiver does not increase, nor is the light receiver attacked by ultraviolet rays and which is capable of controlling the quantity of light with a high degree of accuracy. The light receiver is mounted in the vicinity of the light source of the exposure apparatus and it is cooled by water.

REFERENCES:
patent: 2434924 (1948-01-01), Hamilton
patent: 3523495 (1970-08-01), Giedd et al.
patent: 3603827 (1971-09-01), Degawa et al.
patent: 3610125 (1971-10-01), Touchy
patent: 3636836 (1972-01-01), Maddox et al.
patent: 3783276 (1974-01-01), Allington
patent: 3832067 (1974-08-01), Kopf et al.
patent: 3949226 (1976-04-01), Dugan et al.

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