Irradiance attachment for an optical fiber to provide a uniform

Details Irradiance attachment for an optical fiber to provide a uniform Irradiance attachment for an optical fiber to provide a uniform

1994-05-25

1996-05-21

Shafer, Ricky D.

Optical: systems and elements

Diffusing of incident light

359900, 250228, 356236, 385 31, 385 84, 606 16, 606 18, 607 88, G02B 502, G01J 104, A61B 1736, A61N 500

Patent

active

055195342

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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