US PATENT SUBCLASS 352 / 45
.~.~ Photographing with light filtration
Current as of:
June, 1999
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352 /
HD
OPTICS: MOTION PICTURES
38
DF
METHODS
{4}
44
DF
.~ Recording {5}
45
.~.~ Photographing with light filtration
DEFINITION
Classification: 352/45
(under subclass 44) Subject matter including the filtering of the image bearing light before reaching the photo sensitive recording surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42, for methods of controlling the projector involving color filtration.