US PATENT SUBCLASS 359 / 303
.~.~.~ Using more than one polarization (e.g., digital)

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

237  DF  OPTICAL MODULATOR {3}
298  DF  .~ Light wave directional modulation (e.g., deflection or scanning is representative of the modulating signal) {5}
301  DF  .~.~ Acting on polarized light {3}
303.~.~.~ Using more than one polarization (e.g., digital)

DEFINITION

Classification: 359/303

Using more than one polarization (e.g., digital):

(under subclass 301) Subject matter wherein at least two distinct beams, corresponding to two different polarizations, are obtained.

(1) Note. The systems use a polarization modulation element to switch the polarization of the incoming beam followed by a birefringent polarization discriminator whereby two distinct beams are obtained corresponding to the ordinary and extraordinary rays.

SEE OR SEARCH THIS CLASS, SUBCLASS:

302, for reflecting structures where different polarizations are used.