Treating apparatus utilizing ultraviolet ray
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United States of America Patent
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Issued Date -
Sep 25, 2003
app pub date -
Jan 6, 2003
filing date -
Jul 7, 2000
priority date (Note) -
Abandoned
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Abstract
There is provided a light diffusing structure that diffuses ultraviolet rays, emitted by an ultraviolet ray discharge lamp (50), to irradiate a to-be-treated substance with the thus-diffused ultraviolet rays, so as to lessen unevenness in luminance of the rays. The light diffusing structure is provided by forming a generally while-colored thin film (11) on the inner surface of a light emitting tube (10) or minute irregularities on the inner or outer surface of the light emitting tube (10), or by forming a light-transmissive outer tube (protective tube) (60), accommodating therein the discharge lamp (50), of a translucent (diffusion-permeable) material. Such arrangements achieve enhanced sterilizing/purifying capabilities commensurate with amounts of ultraviolet ray irradiation by a high-density ultraviolet ray light source and can thereby perform efficient treatment.
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