US PATENT SUBCLASS 359 / 454
.~ Unitary sheet comprising plural refracting areas


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

443  DF  PROJECTION SCREEN {13}
454.~ Unitary sheet comprising plural refracting areas {1}
455  DF  .~.~> Lenticular {2}


DEFINITION

Classification: 359/454

Unitary sheet comprising plural refracting areas:

(under subclass 443) Subject matter wherein a plurality of refracting elements are each part of a unitary plate or mass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

455, for a lenticular screen.

542, for signal reflectors with plural refracting elements formed as a unitary mass.