Optical apparatus provided with a driving unit for moving a lens

Details Optical apparatus provided with a driving unit for moving a lens Optical apparatus provided with a driving unit for moving a lens

1991-07-29

1994-02-22

Dzierzynski, Paul M.

Optical: systems and elements

Lens

With support

359814, G03B 300

Patent

active

052893189

ABSTRACT:
This specification discloses an optical apparatus provided with a lens unit movable in the direction of the optical axis thereof, a lens barrel, an electromagnetic coil coupled to one of the lens unit and the lens barrel, a driving unit having a magnetic material coupled to the other of the lens unit and the lens barrel, and a guide for slidably guiding the lens unit relative to the lens barrel.

REFERENCES:
patent: 4639084 (1987-01-01), Kugioka
patent: 4749269 (1988-06-01), Nakashima et al.
patent: 4785210 (1988-11-01), Maruyama et al.
patent: 4862441 (1989-08-01), Yumura et al.
patent: 5146071 (1992-09-01), Ookubo et al.

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