Irradiance attachment for an optical fiber to provide a uniform level of illumination across a plane
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United States of America Patent
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May 21, 1996
Grant Date -
N/A
app pub date -
May 25, 1994
filing date -
May 25, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A irradiation attachment for an optical fiber which provides an output of light that has a highly uniform intensity. The device includes a hollow spherical shell having a diffusive reflective surface or target supported therein. Light is directed into the hollow spherical shell so that it reflects off the diffusive reflective surface or target. The reflected light is internally reflected off the inner surface of the hollow spherical shell several times before passing through an output aperture. As a result of the internal reflection within the hollow spherical shell, the light leaving the device has a highly uniform intensity. The device is particularly useful for photodynamic therapy.
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