Lens barrel and image pickup device including lens barrel

Details Lens barrel and image pickup device including lens barrel Lens barrel and image pickup device including lens barrel

2006-06-13

2006-06-13

Dang, Hung X. (Department: 2873)

Optical: systems and elements

Lens

With support

C359S696000, C359S699000

Reexamination Certificate

active

07061700

ABSTRACT:
A lens barrel for holding a lens group includes: a holding mechanism for movably holding the lens group in a direction parallel to an optical axis; an electromagnetic motor including a cylindrical stator with an axis parallel to the optical axis being taken as a center axis and a cylindrical rotor that is coaxial with the stator and rotates about the center axis with respect to the stator; a converting mechanism for converting a rotating motion of the rotor to a straight-ahead motion for allowing the holding mechanism to move the lens group in the direction parallel to the optical axis; and force applying means that applies a magnetic force to the rotor in the direction parallel to the optical axis.

REFERENCES:
patent: 4828360 (1989-05-01), Maruyama
patent: 60-146207 (1985-08-01), None
patent: 62-267711 (1987-11-01), None
patent: 5-196850 (1993-08-01), None
patent: 6-250068 (1994-09-01), None
patent: 2000-131586 (2000-05-01), None

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