Coating processes – Electrical product produced – Welding electrode
Patent
1976-09-13
1978-09-26
Goolkasian, John T.
Coating processes
Electrical product produced
Welding electrode
427 68, 427264, 427272, 427376A, 96 361, 96 451, B05D 306, B05D 506
Patent
active
041171772
ABSTRACT:
The mosaic image screen of a shadow mask color tube has a plurality of sets of elemental screen areas, each of which areas includes a phosphor for emitting light of one of three primary colors and a filter which is transmissive of that color but otherwise is essentially a visible light attenuator. The color filter for the first set is formed by applying a thin film of a metallic resinate of a particular color onto the faceplate, directing a laser beam to the elemental screen areas for the other two primary colors to liquify the film and to withdraw the liquefied film from these areas, and heating the entire film to raise the energy threshold at which liquefaction occurs. Second and third metallic resinate films of the other two colors are similarly processed, and then all three films are heated to volatilize their respective organic material to form the color filters.
REFERENCES:
patent: 3569761 (1971-03-01), Lange
patent: 3681111 (1972-08-01), Kaplan
patent: 3884694 (1975-05-01), Gallaro
patent: 3884695 (1975-05-01), Gallaro
patent: 3932183 (1976-01-01), Fisher
patent: 4000334 (1976-12-01), Hallman et al.
patent: 4027312 (1977-05-01), Schlafer et al.
patent: 4054094 (1977-10-01), Caddell et al.
patent: 4059707 (1977-11-01), Smith et al.
Fugardi "Thick-Film Printing With a Laser" IBM Tech. Disc. Bull., vol. 14, No. 10, Mar. 1972, p. 2855.
IBM Technical Disclosure Bulletin, vol. 14, No. 8, Jan. 1972, p. 2358.
Goolkasian John T.
GTE Laboratories Incorporated
Keay David M.
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