Phosphors

Details Phosphors Phosphors

1980-03-10

1982-12-21

Smith, John D.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

29 2511, 29 2513, 2523014S, 2523016S, 313506, 313509, 427 12, 427 64, 427 66, 427157, H05B 3310, H05B 3314

Patent

active

043651844

ABSTRACT:
This invention provides phosphors for use in electroluminescent devices. Each phosphor contains a dopant and at least one of the sulphides of the group consisting of strontium, calcium, barium and magnesium sulphide.

REFERENCES:
patent: 3731353 (1973-05-01), Vecht
patent: 3984586 (1976-10-01), Kawarada et al.
patent: 4140937 (1979-02-01), Vecht et al.
Kanari, P. S., "Photoluminescence in Copper and Manganese Activated Strontium Sulphide Phosphors".
Lehman, "Activators and Co-Activators in Calcium Sulphide Phosphors," Journal of Luminescence, 5, 87-107, 1972.
Masoorkar et al., "Voltage & Frequency Dependence of Brightness in SRS: Cu Electroluminophors," Indian J. of Pure and Applied Physics, 11, Sep. 1973, pp. 688-690.

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