US PATENT SUBCLASS 359 / 785
.~.~.~ + - + Arrangement

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

642  DF  LENS {32}
754  DF  .~ Multiple component lenses {6}
784  DF  .~.~ Three components {3}
785.~.~.~ + - + Arrangement {5}
786  DF  .~.~.~.~> With multiple element first component
787  DF  .~.~.~.~> With multiple element second component
788  DF  .~.~.~.~> With multiple element third component
789  DF  .~.~.~.~> With first component biconvex
790  DF  .~.~.~.~> With third component biconvex

DEFINITION

Classification: 359/785

+-+ Arrangement:

(under subclass 784) Subject matter wherein the plus and minus signs indicate convergent and divergent lens components, respectively.

(1) Note. The arrangement along the optical axis of the lens is identified by the leftmost sign representing the component at the entrant face of the lens, i.e., the direction of light travelling through the lens is the same as the reading arrangement of the subclass title.