US PATENT SUBCLASS 396 / 112
.~.~ Double wedge prism


Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

89  DF  WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS {28}
111  DF  .~ Optical detail with photoelement system {8}
112.~.~ Double wedge prism


DEFINITION

Classification: 396/112

Double wedge prism:

(under subclass 111) Subject matter wherein the light modifying means includes at least two triangular shaped refracting elements.

SEE OR SEARCH CLASS

353, Image Projectors,

81, for prism in an image projector light path.

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

625, for focusing or defocusing using noncurved surfaces (e.g., prismatic, etc.), subclass 640 for light-dividing, combining, or image-forming by prismatic-type refractor, and subclass 837 for a prism with refracting surface.

362, Illumination,

339, for light modifier with prismatic type refractor.