Fluorescent lamp having visible and UV radiation

Details Fluorescent lamp having visible and UV radiation Fluorescent lamp having visible and UV radiation

1996-02-28

1998-09-01

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313487, 313489, H01J 162

Patent

active

058014837

ABSTRACT:
A fluorescent lamp includes a light-transmitting envelope, means for generating a discharge within envelope, a discharge sustaining fill contained in envelope for emitting ultraviolet rays during the lamp operation and a phosphor layer coated on an inner surface of envelope. The phosphor layer converts the ultraviolet rays into visible light and ultraviolet radiation within a wavelength range of 320 nm to 410 nm so as to have radiant flux ratio of ultraviolet radiation of 5 to 50 percent of the entire radiant flux of the lamp.

REFERENCES:
patent: 3748518 (1973-07-01), Lewis
patent: 4075532 (1978-02-01), Piper et al.
patent: 4703224 (1987-10-01), Rattray et al.
patent: 4967090 (1990-10-01), Schlitt
patent: 5309069 (1994-05-01), Sigai et al.

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