Beam-index type color cathode ray tube device

Details Beam-index type color cathode ray tube device Beam-index type color cathode ray tube device

1986-09-12

1988-07-12

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Screen

313461, 313471, H01J 2934, H01J 2986

Patent

active

047572310

ABSTRACT:
A beam-index type color cathode ray tube device which includes a front panel portion, a screen panel portion which faces the front panel portion, a phosphor screen including a plurality of index phosphor stripes fixed to the inner surface of the screen panel portion and extending at regularly spaced intervals. A porous inorganic layer is fixed on the inner surface of the screen panel portion and extends between each adjoining pair of the index phosphor stripes. A metallic reflecting layer covers the index phosphor stripes and the porous inorganic layer. A plurality of color phosphor stripes is applied to the metallic reflecting layer in a predetermined pattern. A photodetecting portion disposed at the outside of the screen panel portion receives fluorescence from the actuation of the index phosphor stripes.

REFERENCES:
patent: 2842697 (1958-07-01), Bingley
patent: 3005125 (1961-10-01), Evans et al.
patent: 3767954 (1973-10-01), van den Avoort
patent: 4122213 (1978-10-01), Ito et al.
patent: 4209551 (1980-06-01), Masaki et al.
patent: 4406974 (1983-09-01), Tanaka et al.
patent: 4590092 (1986-05-01), Giancaterini et al.
patent: 4654559 (1987-03-01), Hinotani et al.

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