US PATENT SUBCLASS 359 / 625
.~.~ Focusing or defocusing by noncurved surfaces (e.g., prismatic, etc.)

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

618  DF  SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.) {3}
619  DF  .~ By surface composed of lenticular elements {6}
625.~.~ Focusing or defocusing by noncurved surfaces (e.g., prismatic, etc.)

DEFINITION

Classification: 359/625

Focusing or defocusing by noncurved surfaces (e.g., prismatic, etc.):

(under subclass 619) Subject matter wherein the elements of the array are planar surface ele-ments.

(1) Note. Prismatic elements are classified in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

831+, for prism (including mount).