Ultraviolet fluorescent lamp for accelerated exposure test on polymer
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United States of America Patent
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Aug 22, 1989
Grant Date -
N/A
app pub date -
Mar 2, 1988
filing date -
Mar 4, 1987
priority date (Note) -
Expired
status (Latency Note)
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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.
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