US PATENT SUBCLASS 385 / 37
.~.~ Grating

Current as of: June, 1999
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385 /   HD   OPTICAL WAVEGUIDES

15  DF  WITH OPTICAL COUPLER {8}
31  DF  .~ Input/output coupler {5}
37.~.~ Grating

DEFINITION

Classification: 385/37

Grating:

(under subclass 31) Subject matter wherein coupling is performed by a diffraction grating.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

566+, for optical grating structure and subclass 34 for holos:graphic diffraction elements in combination with optical waveguides.