US PATENT SUBCLASS 359 / 727
.~.~ Including concave or convex reflecting surface

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

642  DF  LENS {32}
726  DF  .~ With reflecting element {3}
727.~.~ Including concave or convex reflecting surface {2}
728  DF  .~.~.~> With aspheric surface (e.g., Schmidt lens, etc.) {1}
730  DF  .~.~.~> Reflectors in series {1}

DEFINITION

Classification: 359/727

Including concave or convex reflecting surface:

(under subclass 726) Subject matter wherein the lens system includes a transparent refractive element and a curved reflective surface which coact to provide a single lens of both refractive and reflective components, i.e., a catadioptric lens.

SEE OR SEARCH THIS CLASS, SUBCLASS:

364+, for lenses having both refracting and reflecting components combined with an ocular or viewing system.

838, for reflectors and reflecting systems.

SEE OR SEARCH CLASS

348, Television,

744+, for catadioptric lenses combined with cathode-ray tubes.

396, Photography, appropriate subclasses for catadioptric lenses combined with significant camera structure.