Mercury vapor lamp with terbium-activated gadolinium borate lumi

Details Mercury vapor lamp with terbium-activated gadolinium borate lumi Mercury vapor lamp with terbium-activated gadolinium borate lumi

1992-06-22

1994-06-28

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313485, 313493, 2523014R, C09K 1178, H01J 163

Patent

active

053250168

ABSTRACT:
A mercury vapor discharge lamp includes, as a luminescent material, a terbium-activated gadolinium borate wherein the terbium comprises about 2-40% of total terbium and gadolinium. Said material is capable of excitation by ultraviolet radiation at 254 nm. without sensitization by materials such as trivalent cerium.

REFERENCES:
patent: 4093890 (1978-06-01), Verriet et al.
patent: 4335330 (1982-06-01), Peters et al.
patent: 4403171 (1983-09-01), Nakano et al.
patent: 4914347 (1990-04-01), Osawa et al.
patent: 4926091 (1990-05-01), Verlijsdonk et al.
Veenis et al., Philips J. Res., 33, 124-132 (1978).

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