US PATENT SUBCLASS 359 / 639
.~ By refraction at beam splitting or combining surface

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
639.~ By refraction at beam splitting or combining surface {1}
640  DF  .~.~> Including prismatic element

DEFINITION

Classification: 359/639

By refraction at beam splitting or combining surface:

(under subclass 618) Subject matter including a surface which refracts substantial portions of the incident light.

SEE OR SEARCH THIS CLASS, SUBCLASS:

737, for lens with refracting element.

837, for prism with refracting surface.