Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1986-02-21
1987-09-22
DeMeo, Palmer C.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313408, 313286, H01J 2907
Patent
active
046957618
ABSTRACT:
A front assembly for a color cathode ray tube includes a faceplate having on its inner surface a centrally disposed phosphor screen. The assembly according to the invention comprises in one embodiment a shadow mask support structure composed of sheet metal secured to the inner surface of the faceplate on opposed sides of the screen, and a foil shadow mask secured in tension on the structure. Other embodiments of the invention comprise shadow mask support structures having in cross-section the shape of an inverted "V", and the shapes of a a hollow tube, a rectangle, and a tooth.
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"A High Brightness Shadow-Mask Color CRT For Cockpit Displays"; SID 83 Digest; Robinder et al.
Clarke, Jr. Ralph E.
DeMeo Palmer C.
Zenith Electronics Corporation
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