Deep-red emitting phosphor

Details Deep-red emitting phosphor Deep-red emitting phosphor

1977-04-18

1978-01-31

Cooper, Jack

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

2523014R, C09K 1138

Patent

active

040714659

ABSTRACT:
A luminescent composition excited by ultraviolet or selected visible wavelength radiations consisting essentially of aluminum oxide-germanium dioxide matrix activated by chromium. The composition provides strong line emissions in the deep red.

REFERENCES:
patent: 2227418 (1941-01-01), Addink
patent: 2919363 (1959-12-01), Crosby et al.
patent: 3550033 (1970-12-01), Ohlmann et al.
patent: 3755536 (1973-08-01), Bither

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