Cathode ray tube

Details Cathode ray tube Cathode ray tube

1986-03-11

1987-10-20

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

313475, 313472, H04N 918, H04N 920

Patent

active

047017899

ABSTRACT:
A color cathode ray tube has a fibre optic faceplate with a uniform phosphor layer on the inside and color elements on the outside, which may be color filters or color phosphors responsive to light from the inside phosphor layer. With this arrangement, the tube may be rugged and alignment problems as between the shadow mask and color elements are eliminated since the color element may be formed after the tube has been permanently assembled, the formation of the color elements being achieved utilizing light generated by the inside phosphor layer in response to irradiation thereof by the electron beams. The shadow mask is arranged so that the zones of the inside phosphor layer irradiated by the scanning electron beams each have an area which covers the ends of a plurality of the optical fibres.

REFERENCES:
patent: 2979632 (1961-04-01), MacNeille
patent: 2983835 (1961-05-01), Frey, Jr.
patent: 3244921 (1966-04-01), Behun
patent: 3247756 (1966-04-01), Siegmund
patent: 3439207 (1969-04-01), Barten
patent: 3745398 (1973-07-01), Oikawa
patent: 3812394 (1974-05-01), Kaplan
patent: 3826944 (1974-07-01), Cooper
patent: 3904912 (1975-09-01), Duistermaat
patent: 3988777 (1976-10-01), Hosokoshi et al.

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