US PATENT SUBCLASS 359 / 575
.~.~.~ With nonuniform corrugation width, spacing, or depth

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

558  DF  DIFFRACTION {3}
566  DF  .~ From grating {3}
569  DF  .~.~ Including particular grating characteristic {7}
575.~.~.~ With nonuniform corrugation width, spacing, or depth

DEFINITION

Classification: 359/575

With nonuniform corrugation width, spacing, or depth:

(under subclass 569) Subject matter wherein the grating has at least one ridge or groove for the light to impinge and the width, depth, height, or spacing of each ridge or groove

varies along the corrugation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

574, for curved or geometrically shaped corrugations of a grating.

576, for laminated or layered grating which usually has parallel corrugations.