US PATENT SUBCLASS 235 / 462.34
.~.~.~.~.~.~ Hologram

Current as of: June, 1999
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235 /   HD   REGISTERS

435  DF  CODED RECORD SENSORS {9}
439  DF  .~ Particular sensor structure {8}
454  DF  .~.~ Optical {10}
462.01  DF  .~.~.~ Bar code {20}
462.32  DF  .~.~.~.~ Specific scanning detail (e.g., scanner with a specific scanning field of view) {1}
462.33  DF  .~.~.~.~.~ Moving a spot of light (e.g., flying spot scanner) {3}
462.34.~.~.~.~.~.~ Hologram

DEFINITION

Classification: 235/462.34

Hologram

(under subclass 462.33) Subject matter wherein the light beam moving means includes a hologram.

(1) Note. A hologram is an interference pattern produced by a split coherent beam of light.

SEE OR SEARCH THIS CLASS, SUBCLASS:

457, for an optical coded record sensor including means to sense a holographically encoded pattern.

SEE OR SEARCH CLASS

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

15+, for using a hologram as an optical element.