Lens driving device

Details Lens driving device Lens driving device

1991-02-14

1992-09-22

Hix, L. T.

35419512, G03B 1300

Patent

active

051501449

ABSTRACT:
A device for driving a lens including one or more lens groups displaceable in a direction along the optical axis by an electric drive unit. A memory unit is provided for storing a position of the lens group, and a controller for displacing one or more lens groups to the position stored in the memory unit by the electric drive unit.

REFERENCES:
patent: 4299457 (1981-11-01), Ducommun
patent: 4465352 (1984-08-01), Hirobe et al.
patent: 4866468 (1989-09-01), Himuro et al.
patent: 4885600 (1989-12-01), Iwasa et al.
patent: 4933700 (1990-06-01), Ikeda et al.
patent: 4936664 (1990-06-01), Haraguchi et al.
patent: 4994843 (1991-02-01), Kitazawa

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