Fiber optic diffusers and methods for manufacture of the same

Details Fiber optic diffusers and methods for manufacture of the same Fiber optic diffusers and methods for manufacture of the same

1990-03-07

1991-12-24

Sikes, William L.

Optical waveguides

With optical coupler

Input/output coupler

G02B 626

Patent

active

050746324

ABSTRACT:
The present invention relates to improvements on fiberoptic diffusers for use in PDT and methods of making the same. This invention discloses a fiberoptic cylindrical diffuser dispersing light outwardly in a cylindrical scattering pattern which includes a fiber with a jacket-stripped core tip, a thin layer of scattering medium coated on the bare core tip, and a sleeve member with a closed end enclosing the fiber tip without touching the scattering medium and fixed on the jacket of the fiber. The sleeve member may include a tapered head. The present invention also discloses a fiberoptic spherical diffuser radiating light outwardly in a spherical scattering pattern. The spherical diffuser comprises a fiber with a jacket-stripped core tip, a bushing member with open ends circumferentially surrounding the core tip and fixed on the jacket of the fiber, and a scattering medium enclosing a portion of the bushing member and the fiber core tip in a spherical form.

REFERENCES:
patent: 4660925 (1987-04-01), McCaughan, Jr.
patent: 4693556 (1987-09-01), McCaughan, Jr.

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