Red luminescent cathode ray device with improved color filtering

Details Red luminescent cathode ray device with improved color filtering Red luminescent cathode ray device with improved color filtering

1984-10-09

1986-12-02

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313468, 313112, 350312, H01J 3100, H01J 2910, H01J 516

Patent

active

046267409

ABSTRACT:
Undesired light radiations emitted by europium activated red luminescent phosphors employed in projection color televisions are greatly reduced, with essentially no reduction in the desired radiation, by employing as a filter a solution containing a soluble holmium salt and a soluble neodymium salt.

REFERENCES:
patent: 3143683 (1964-08-01), Duncans
patent: 3631284 (1971-12-01), Sisneros
patent: 3634711 (1972-01-01), Barber
patent: 3638060 (1972-01-01), Wacher
patent: 3914010 (1975-10-01), Zeller
patent: 4070101 (1978-01-01), Richards et al.
patent: 4099883 (1978-07-01), Berger et al.
patent: 4106857 (1978-08-01), Snitzer

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