Phosphor distribution for helical compact fluorescent lamp

Details Phosphor distribution for helical compact fluorescent lamp Phosphor distribution for helical compact fluorescent lamp

1995-03-31

1997-10-21

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313485, 313573, 313635, H01J 162

Patent

active

056800053

ABSTRACT:
A compact fluorescent lamp is provided in a coiled or helical configuration in order to maximize the length of discharge tubing for a given height. A non-uniform coating of phosphor is provided on the interior surface of the discharge envelope to inhibit light otherwise directed inwardly into the lamp toward a longitudinal axis of the helical configuration and redirect the light outwardly through an outer circumferential portion having a thinner phosphor coating. This results in increased light output for an given lamp geometry and lamp power.

REFERENCES:
patent: 2788462 (1954-06-01), MacFarlane
patent: 3764844 (1973-10-01), Schmidt
patent: 3886396 (1975-05-01), Hammer et al.
patent: 3898495 (1975-08-01), Livera
patent: 3953761 (1976-04-01), Giudice
patent: 4503360 (1985-03-01), Bedel
patent: 4694215 (1987-09-01), Hofmann
patent: 4797594 (1989-01-01), Sigai et al.
patent: 5128590 (1992-07-01), Holzer
patent: 5150965 (1992-09-01), Fox
patent: 5220236 (1993-06-01), Washburn et al.
patent: 5331168 (1994-07-01), Beaubien et al.
patent: 5341068 (1994-08-01), Nerone
patent: 5361017 (1994-11-01), Krause

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