Infra-red phosphors and fluorescent lamp containing the same

Details Infra-red phosphors and fluorescent lamp containing the same Infra-red phosphors and fluorescent lamp containing the same

1986-11-13

1988-01-12

Cooper, Jack

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

2523014R, 2523016R, H01J 6144, C09K 11463

Patent

active

047193875

ABSTRACT:
An infra-red emissive phosphor consists of chromium activated cerium manganese aluminate having a hexagonal crystal structure and represented by the general formula: ##EQU1## where x is from 0.3 to 3.0, y is from 0.01 to 2.0, z is from 0.001 to 0.3 and R is manganese, in which up to 95 atomic percent of the manganese may be replaced by an equivalent amount of zinc or magnesium or both.

REFERENCES:
patent: 3597365 (1971-08-01), Ward
patent: 3693006 (1972-09-01), Chenot
patent: 4003845 (1977-01-01), van den Boom et al.
patent: 4071465 (1978-01-01), Vodoklys
patent: 4524300 (1985-06-01), Rutten et al.

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