Compact fluorescent lamp

Details Compact fluorescent lamp Compact fluorescent lamp

1986-07-16

1989-02-07

DeMeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313493, H01J 6135, H01J 6142

Patent

active

048034010

ABSTRACT:
Disclosed is a compact fluorescent lamp which comprises an airtight outer bulb filled with a rare gas and mercury; inner tube means provided within the outer bulb, said means having opening to a space of the inside of the outer bulb, and a coating formed onto at least one of an inner surface of said outer bulb and an outer surface of said inner tube means, said coating being so transparent as substantially not to scater visible rays and which consists of at least one material of an oxide and a phosphate.
A compact fluorescent lamp mostly in the electric bulb shape of the present invention has been remarkably improved in the so-called lumen output maintenance without lowering of the initial lumen output.

REFERENCES:
patent: 2706691 (1955-04-01), Schaefer
patent: 3205394 (1965-09-01), Ray
patent: 3377494 (1968-04-01), Repsher et al.
patent: 3514276 (1970-05-01), Fujio et al.
patent: 4587453 (1986-05-01), Ono et al.

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