US PATENT SUBCLASS 359 / 179
.~.~ Including optical waveguide


Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

109  DF  OPTICAL COMMUNICATION {13}
174  DF  .~ Optical repeater system {4}
179.~.~ Including optical waveguide


DEFINITION

Classification: 359/179

Including optical waveguide:

(under subclass 174) 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. This requires total internal reflection.

(2) Note. This subject matter includes an optical waveguide in combination with an optical repeater system (see Search Class Notes 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.