US PATENT SUBCLASS 359 / 562
.~.~ For changing zeroth order intensity

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

558  DF  DIFFRACTION {3}
559  DF  .~ Using Fourier transform spatial filtering {5}
562.~.~ For changing zeroth order intensity

DEFINITION

Classification: 359/562

For changing zeroth order intensity:

(under subclass 559) Subject matter wherein the spatial filter located at the Fourier transform plane is designed to have a positive effect (i.e., blocks, transparent, increase intensity, etc.) on the zeroth order term in the Fourier series representative of the light wave input.

SEE OR SEARCH THIS CLASS, SUBCLASS:

559, for spatial filtering at the Fourier transform plane.