US PATENT SUBCLASS 359 / 15
.~ Using a hologram as an optical element

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

1  DF  HOLOGRAPHIC SYSTEM OR ELEMENT {16}
15.~ Using a hologram as an optical element {3}
16  DF  .~.~> With aberration correction
17  DF  .~.~> Scanner {1}
19  DF  .~.~> Lens {1}

DEFINITION

Classification: 359/15

Using a hologram as an optical element:

(under subclass 1) Subject matter wherein a holos:graphic equivalent to an ordinary optical element is formed or used and wherein the holos:graphic equivalent does not itself contain any intelligence or image information more significant than a point image.

(1) Note. The optical elements for which the hologram may be substituted include lenses, reflectors, diffusers, gratings, polarizers, beam splitters or combiners, filters, and phase plates or beam couplers.