US PATENT SUBCLASS 359 / 824
.~.~.~.~.~ Electromagnetic or piezoelectric drive

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  DF  .~.~.~.~ With axial adjustment (e.g., adjustable focus, etc.) {3}
824.~.~.~.~.~ Electromagnetic or piezoelectric drive

DEFINITION

Classification: 359/824

Electromagnetic or piezoelectric drive:

(under subclass 823) Subject matter wherein the 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 includes a source of mechanical motive power which is driven by electrical means.