Luminescent aluminates and mercury vapor discharge lamp containi

Details Luminescent aluminates and mercury vapor discharge lamp containi Luminescent aluminates and mercury vapor discharge lamp containi

1978-01-13

1979-04-17

Cooper, Jack

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

2523014R, 2523014F, 2523014P, 2523016R, 2523016F, 2523016P, C09K 1146, H01J 163

Patent

active

041503210

ABSTRACT:
Luminescent aluminate with magnetoplumbite crystal structure, activated by cerium, by cerium and terbium or by cerium and manganese. The aluminate comprises at least one of the elements B, Si and P in a quantity of 0.001 to 0.20 mole per mole of aluminate which results in improved properties of luminescence. These aluminates are preferably used in low-pressure mercury vapor discharge lamps.

REFERENCES:
patent: 3836477 (1974-09-01), Lagos
patent: 4003845 (1977-01-01), Boom et al.

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