Camera

Details Camera Camera

1994-07-29

1995-08-29

Adams, Russell E.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

318696, G03B 1336

Patent

active

054465176

ABSTRACT:
An optical apparatus having a lens driving device includes a stepping motor for driving a lens which is movable along an optical axis and a controller for driving the stepping motor. The controller selectively changes excitation for the stepping motor among a plurality of respectively different excitations.

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