Electric lamp and discharge devices – Cathode ray tube – Envelope
Patent
1986-08-07
1988-05-03
Moore, David K.
Electric lamp and discharge devices
Cathode ray tube
Envelope
313477R, 174 5063, 174 1708, 174110N, 174117F, H01J 2990, H01B 700
Patent
active
047422670
ABSTRACT:
A cathode ray tube has a thin flexible circuit (48) comprising one or more films of polyimide with a plurality of conductive tracks deposited directly thereon for establishing electrical connection between a multi-pin lead through (45) passing through the wall of the tube's envelope (31) and terminals of electrically operable components within the envelope, e.g. electron gun (35) and beam-deflection electrodes (36,39 and 40). A number of track-carrying films may be stacked together to form a laminate structure. Such a flexible circuit avoids outgassing problems and, being thin and flexible, occupies minimal space and is easily routed around internal components to ease assembly.
REFERENCES:
patent: 4075420 (1978-02-01), Walton
patent: 4268712 (1981-05-01), Overall
patent: 4492815 (1985-01-01), Maros
Baker Robert J.
Francis Leslie H.
Moore David K.
Spain Norman N.
U.S. Philips Corp.
Wieder K.
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