US PATENT SUBCLASS 359 / 643
.~ Eyepiece

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

642  DF  LENS {32}
643.~ Eyepiece {4}
644  DF  .~.~> Having four components
645  DF  .~.~> Having three components
646  DF  .~.~> Having two components
647  DF  .~.~> Having one component

DEFINITION

Classification: 359/643

Eyepiece:

(under subclass 642) Subject matter wherein the lens creates a magnified virtual image of a rear object.

(1) Note. The eyepiece in an optical instrument is the lens or lenses nearest the viewer's eye.