US PATENT SUBCLASS 359 / 891
.~ Filters in optical parallel (e.g., colors side-by-side, etc.)


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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

885  DF  ABSORPTION FILTER {7}
891.~ Filters in optical parallel (e.g., colors side-by-side, etc.)


DEFINITION

Classification: 359/891

Filters in optical parallel (e.g., colors side-by-side, etc.):

(under subclass 885) Subject matter having a plurality of differently colored filters arranged in such a fashion that ray energy passing through one filter does not pass through any other filter and the resultant filtered rays are uniformly equidistant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

618+, for similar subject matter used with light dividing and combining systems.

887, where colored ray energies are sequentially additive.

SEE OR SEARCH CLASS

352, Optics: Motion Pictures,

45, and 66+ for similar subject matter used in the motion picture art.

396, Photography, 305+, for similar camera color image forming using monochrome film.