US PATENT SUBCLASS 359 / 778
.~.~.~.~.~.~ Having a biconvex single element component

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}
771  DF  .~.~ Four components {2}
772  DF  .~.~.~ First component positive {5}
775  DF  .~.~.~.~ + - - + Arrangement {1}
776  DF  .~.~.~.~.~ With multiple element component {2}
778.~.~.~.~.~.~ Having a biconvex single element component

DEFINITION

Classification: 359/778

Having a biconvex single element component:

Subject matter under 776 wherein at least one element consists of a single mass of refracting material having a curved or rounded outward surface at the entrance and exit ends.

SEE OR SEARCH THIS CLASS, SUBCLASS:

789, for a three component lens having a first biconvex component in the + - + component arrangement.

790, for a three component lens having a third biconvex component in the + - + component arrangement.