Radiation imagery chemistry: process – composition – or product th – Producing cathode-ray tube or element thereof – Using specific control or specific modification of exposure,...
Patent
1977-12-27
1980-09-16
Kimlin, Edward C.
Radiation imagery chemistry: process, composition, or product th
Producing cathode-ray tube or element thereof
Using specific control or specific modification of exposure,...
430 5, 430394, 430396, G03C 500
Patent
active
042230837
ABSTRACT:
An improved method of screening a color cathode ray tube of the shadow mask type is disclosed. The shadow mask is used to form a corresponding virtual mask on the outer or viewing surface of the CRT faceplate. The virtual mask then is employed as a substitute for the shadow mask in the subsequent photoprinting of a color display screen on the faceplates's inner surface. Advantages include reduced handling of the fragile shadow mask, which reduces the costs associated with replacing such masks if they become damaged, and better defined and registered phosphor deposits.
REFERENCES:
patent: 1967057 (1934-07-01), Irvine
patent: 2870010 (1959-01-01), Sadowsky et al.
patent: 3146368 (1964-08-01), Fiora et al.
patent: 3224895 (1965-12-01), Rebel
patent: 3226246 (1965-12-01), Vermuelen et al.
patent: 3313626 (1967-04-01), Whitney
patent: 3615461 (1971-10-01), Kaplan
patent: 3615462 (1971-10-01), Szegho et al.
patent: 3661580 (1972-05-01), Mayaud
patent: 3764366 (1973-10-01), Ninagawa et al.
Kimlin Edward C.
Tektronix Inc.
Winkelman John D.
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