Photographic master for use in screening a color cathode ray tub

Details Photographic master for use in screening a color cathode ray tub Photographic master for use in screening a color cathode ray tub

1975-11-21

1977-04-26

Griffin, Donald A.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

96 361, 313402, G03B 4100, G03C 500, H01J 2980

Patent

active

040204936

ABSTRACT:
This disclosure depicts a novel low cost, high performance color cathode ray tube of the shadow mask type, and methods and apparatus for manufacturing the tube. The tube has a novel envelope, on a faceplate portion of which is corner-suspended a lightweight, non-self-rigid shadow mask. The tube has a variety of features and is especially adapted to be made by manufacturing methods which permit the screened faceplates to be interchanged, each with all others, and the shadow masks to be interchanged, each with all others, with consequent economies in manufacture and enhanced tube performance. This disclosure stresses the structure of masters employed in the making of the screen.

REFERENCES:
patent: 3231380 (1966-01-01), Law
patent: 3450920 (1969-06-01), Engels et al.
patent: 3873875 (1975-03-01), Miller
patent: 3889329 (1975-06-01), Fazlin
patent: 3890151 (1975-06-01), Suzuki et al.
patent: 3904914 (1975-09-01), Palac
patent: 3912963 (1975-10-01), Sedivy

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