(under subclass 154) Subject matter which further includes one or more transparent elongated structures (e.g., rods, fibers, or pipes) which are used to transmit light waves from one point to another within the confines of their outer surface by means of internal reflections or modal transmission.
(1) Note. An optical waveguide requires total internal reflection.
(2) Note. This subject matter includes an optical waveguide in combination with an optical transmitter and receiver system (see Search Class Note for Class 385).
SEE OR SEARCH CLASS
250, Radiant Energy,
227.11+, for photocell control that could be optical communication type modulator.
324, Electricity: Measuring and Testing, 95, for measuring, testing, or sensing electricity, per se, with waveguide or long line.
385, Optical Waveguides, appropriate subclasses for optical waveguide structure, per se.
