Color cathode ray tube having a reference white fluorescent scre

Details Color cathode ray tube having a reference white fluorescent scre Color cathode ray tube having a reference white fluorescent scre

1979-07-11

1983-09-27

La Roche, Eugene R.

Electric lamp and discharge devices

Cathode ray tube

Screen

313472, 358 10, H01J 2910

Patent

active

044069715

ABSTRACT:
A color cathode ray tube comprises a first fluorescent part on a part of an inner surface of a face plate and said first fluorescent part imparting a luminescence of a predetermining reference white color by irradiation of electron beams; a second fluorescent part on the remained part of the face plate and said second fluorescent part imparting red, green and blue fluorescent dots or stripes wherein the first fluorescent part for the reference white color is formed by a mixture or tricolor fluorescent materials for the second fluorescent part or a mixture of tricolor fluorescent materials which imparts a luminous spectrum being similar to that of the tricolor fluorescent materials for the second fluorescent part.

REFERENCES:
patent: 2337980 (1943-12-01), Du Mont et al.
patent: 2556455 (1951-06-01), Szegho et al.
patent: 2669671 (1954-07-01), Headrick
patent: 2823254 (1958-09-01), Heuer et al.
patent: 2842697 (1958-07-01), Bingley
patent: 2854505 (1958-08-01), Davis
patent: 2892123 (1959-06-01), Sunstein
patent: 3479448 (1969-07-01), Kollsman
patent: 3763310 (1973-10-01), Sagishima et al.
"Optical Characteristics of Cathode Ray Tube Screens," JEDEC Publication No. 16-B; Aug. 1971; p. 120 cited.

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