Ultraviolet fluorescent lamp for accelerated exposure test on po

Details Ultraviolet fluorescent lamp for accelerated exposure test on po Ultraviolet fluorescent lamp for accelerated exposure test on po

1988-03-02

1989-08-22

DeMeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313486, 313493, H01J 6130, H01J 6144

Patent

active

048599034

ABSTRACT:
An ultraviolet fluorescent lamp for accelerated artificial test on polymer is disclosed, which comprises a bulb consisting of an ultraviolet-ray-transmitting glass with the absorbance thereof having a wavelength of 280 nm being 1 to 3 with respect to ultraviolet rays, the inner surface of the bulb being provided with a phosphor having a characteristic that causes radiant energy transmitted through the bulb to increase by 5 to 17 times for every wavelength increase of 5 nm in a wavelength range of 295 to 310 nm, and that it has a radiant energy peak in a wavelength of 305 to 325 nm.

REFERENCES:
patent: 3104226 (1963-09-01), Struck
patent: 3692689 (1972-09-01), Hoffman
patent: 4370595 (1983-01-01), Willemsen et al.
patent: 4499403 (1965-12-01), Leppelmeier et al.
patent: 4645969 (1987-02-01), Hoffman
patent: 4703224 (1987-10-01), Rattray et al.
J. Electrochem. Soc. 118 1508 (1971), "Effect of Thorium on Ce.sup.+3 Phosphors".

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