US PATENT SUBCLASS 359 / 823
.~.~.~.~ With axial adjustment (e.g., adjustable focus, etc.)

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

642  DF  LENS {32}
811  DF  .~ With support {6}
819  DF  .~.~ Lens mounts {6}
822  DF  .~.~.~ Adjustable {1}
823.~.~.~.~ With axial adjustment (e.g., adjustable focus, etc.) {3}
824  DF  .~.~.~.~.~> Electromagnetic or piezoelectric drive
825  DF  .~.~.~.~.~> Focusing ring
826  DF  .~.~.~.~.~> Sliding barrels

DEFINITION

Classification: 359/823

With axial adjustment (e.g., adjustable focus, etc.):

(under subclass 819) Subject matter including structure for moving or permitting motion of the lens along its optical axis or for moving or permitting motion along the optical axis of at least two of the lens components relative to one another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

694+, for adjusting mechanisms for variable focal length lenses.

813, for supports for movement of the lens in its plane.

820, for lens mountings permitting axial movement of the lens in response to temperature change.

SEE OR SEARCH CLASS

396, Photography, 89+, for focusing lens structure in cameras. See (2) Note under subclass 819 above for lines between this classs and Class 396 relating to camera lens mount.