Color cathode ray tube for use with a light pen

Details Color cathode ray tube for use with a light pen Color cathode ray tube for use with a light pen

1984-03-12

1986-01-21

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Screen

313472, 313474, 340707, H01J 2920, H01J 2932

Patent

active

045659478

ABSTRACT:
In a shadow mask cathode ray tube for use with a light pen, the elemental phosphor areas emissive of red light comprise a blend of a red-emissive phosphor with silver-activated cadmium sulphide (CdS:Ag), the CdS:Ag being present in an amount from 10% to 30% by weight of the blend. In the preferred embodiment the blend comprises approximately 20% by weight of CdS:Ag and 80% by weight of industry standard P22R phosphor.

REFERENCES:
patent: 2687360 (1954-08-01), Michaels
patent: 4424467 (1984-01-01), Masuda et al.
patent: 4459476 (1984-07-01), Weissmueller
patent: 4496158 (1985-01-01), Baer

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