US PATENT SUBCLASS 359 / 379
.~.~ Spacing of optical elements axially adjustable

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

362  DF  COMPOUND LENS SYSTEM {8}
368  DF  .~ Microscope {10}
379.~.~ Spacing of optical elements axially adjustable {1}
380  DF  .~.~.~> Variable magnification

DEFINITION

Classification: 359/379

Spacing of optical elements axially adjustable:

(under subclass 368) Subject matter including means for varying the axial separation of the optical elements, for example, for focusing or varying magnification.

(1) Note. Other subclasses in this class indented under subclass 399, Telescope, and titled "Separation of optical elements axially adjustable" or including the word "focusing" may include subject matter related to subject matter in this subclass (379).

SEE OR SEARCH THIS CLASS, SUBCLASS:

506, for an adjustable extended spacing structure for optical elements.