Fluorescent lamp

Details Fluorescent lamp Fluorescent lamp

1992-08-07

1995-08-01

Chin, Tommy P.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

427 67, C09K 1102, H01J 6146

Patent

active

054382343

ABSTRACT:
A fluorescent lamp having a non-fluorescent substance layer and a phosphor layer laminated and coated on, or having a fluorescent composition composed of a mixture of a non-fluorescent substance and a phosphor, coated on the inner wall of a glass bulb, wherein the non-fluorescent substance is an oxide containing at least one rare earth element selected from the group consisting of yttrium, gadolinium and lanthanum.

REFERENCES:
patent: 4069441 (1978-01-01), Wanmaker et al.
patent: 4081398 (1978-03-01), Hase et al.
patent: 4131821 (1978-12-01), Mossman
patent: 4396863 (1983-08-01), Ranby et al.
patent: 4952422 (1990-08-01), Pappalardo et al.
patent: 5194332 (1993-03-01), Kasenga et al.

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