Light mixing device with fiber optic output

Details Light mixing device with fiber optic output Light mixing device with fiber optic output

1991-11-08

1993-12-14

Lee, John D.

Optical waveguides

With optical coupler

Particular coupling structure

385 43, 385 92, G02B 642

Patent

active

052710793

ABSTRACT:
A light mixing device includes multiple light sources supplying light into a mixing rod. The mixing rod mixes the light and supplies it to a plurality of output optical fibers. The physical configuration of the mixing rod is such that light from the various light sources is coupled to each of the output fibers in such a fashion that the light carried by each of the fibers is relatively equal in intensity. The mixing rod structure is larger than the diameter of a single fiber to enable coupling light into multiple fibers. The illumination sources disclosed are narrow-band light emitting diodes wherein light having a narrow frequency range is produced by each LED. Multiple LEDs producing light in several distinct ranges are used.

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