US PATENT SUBCLASS 359 / 762
.~.~.~.~ First two components negative

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}
756  DF  .~.~ Six components {2}
761  DF  .~.~.~ First component negative {1}
762.~.~.~.~ First two components negative

DEFINITION

Classification: 359/762

First two components negative:

(under subclass 761) Subject matter wherein the first two components at the entrant face of the lens, i.e., the first two components hit by the light as the light begins travelling through the lens, are divergent lenses.