Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1987-05-01
1990-05-01
Issing, Gregory G.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
313461, 313463, 313467, 358 72, H01J 2952, H01J 2910, H04N 927
Patent
active
049221582
ABSTRACT:
A polychromatic cathode ray tube includes a screen formed by a single layer of a crystalline semiconductor material which luminesces in visible light when excited by an electron beam. The color of luminescence is varied by modulating the heat energy imparted to the layer by the electron beam.
REFERENCES:
patent: 3582960 (1971-06-01), Hilborn et al.
patent: 3893165 (1975-07-01), Sunstein
patent: 4453179 (1984-06-01), Peters et al.
Issing Gregory G.
Kraus Robert J.
North American Philips Corporation
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