Light radiation device for use in medical treatment
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United States of America Patent
Stats
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Feb 6, 1990
Grant Date -
N/A
app pub date -
May 12, 1989
filing date -
Jul 1, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light radiation device for use in medical treatment is described. The device comprises a fitted portion for engaging with a light source having a ring-shaped light-radiating end-surface, a cylindrical transparent base portion held in the fitted portion and having one end facing to the light-radiating end-surface of the light source portion and a light-radiating portion comprising of a large number of transparent tapered light-radiating elements arranged at the other end of the cylindrical transparent base portion. The cylindrical base portion is covered with a light-reflecting layer or a clad layer at its outer and inner cylindrical surfaces.
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