Color coded optical fibers

摘要

The specification describes an optical fiber color coding scheme that uses two colors, where each of the two colors constitutes one half of the surface of the optical fiber coating. If a longitudinal portion of the coating is considered a hollow cylinder, then each of the two colors is a hollow hemi-cylinder. To ensure that each of the two colors is always plainly visible to an installer, the two colors are formed with a twist. Using two colors for coding substantially increases the number of available unique color codes. Coloring the entire coating reduces the chances of error in identifying the optical fibers.

主权项

1. A hemi-twist color coded optical fiber comprising:
an optical fiber light waveguide, an elongated polymer coating covering the optical fiber light waveguide, the elongated polymer coating having, along any extended portion of the elongated polymer coating, a transverse section that is round and having, along any extended portion of the elongated polymer coating, a longitudinal section comprising a hollow cylinder shape and divided in half to form a first hollow hemi-cylinder coating portion and a second hollow hemi-cylinder coating portion, with the first hollow hemi-cylinder coating portion having a color different from the second hollow hemi-cylinder coating portion.