Bifurcated randomized fiber bundle light cable for directing light from multiple light sources to single light output

摘要

A fiber optic light cable can transmit light from one or more of multiple light originating areas to a light issuing end of the light cable. A main bundle of optic fibers extends from the light issuing end (or cross-sectional area) of the light cable to a bundle junction area of the light cable. At this bundle junction area, the individual fibers are split into at least two bundle segments. The positions of all the individual fibers of the multiple segments are approximately randomized in the main bundle so that by the time they reach the light issuing end (or cross-sectional area) of the light cable, they are approximately random in position with respect to one another. This produces a generally consistent light spread regardless of which light originating area is illuminated. The light cable can be employed in conjunction with a light box having two or more lamps so that when one burns out, another may be quickly activated to continue illumination at the distal end of the tool. Alternatively, multiple lamps may be operated simultaneously to increase illumination.