US PATENT SUBCLASS 359 / 131
.~.~.~.~ Lens

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

109  DF  OPTICAL COMMUNICATION {13}
115  DF  .~ Multiplex {7}
124  DF  .~.~ Wavelength division/frequency division (includes scattering, e.g., Raman, Brillouin, etc.) {4}
127  DF  .~.~.~ By optical coupling {4}
131.~.~.~.~ Lens

DEFINITION

Classification: 359/131

Lens:

(under subclass 127) Subject matter wherein a beam is coupled in or out of a waveguide to accomplish the desired multiplexing by a trans-parent optical component consisting of one or more pieces of optical glass with the surfaces so curved (usually spherical) that they serve to converge or diverge the transmited rays.

(1) Note. This subject matter includes the combination of a lens and wavelength division or frequency division optical communication system (see Search Class Note for Class 385).

SEE OR SEARCH CLASS

385, Optical Waveguides,

33, for lens coupling not included in an optical communication system.