Objective lens moving apparatus

Details Objective lens moving apparatus Objective lens moving apparatus

G - Physics

02

B

88/109

G02B 7/04 (2006.01) F16C 11/00 (2006.01) G11B 7/09 (2006.01)

Patent

CA 2009706

ABSTRACT OF THE DISCLOSURE An objective lens moving apparatus, wherein a pole which is set upright on a base and supports an objective lens is fitted with some eccentricity into a hole of a lens holder which holds an objective lens and can be freely turned and slided, and the lens holder is elastically sup- ported on the base by an elastic member. In this objective lens moving apparatus, the pole is fitted into the hole of the lens holder opposingly to an elastic force of the elas- tic member, and the inner face of the hole of the lens holder is always pressed against the pole to be put along the pole. Accordingly, the axis of the hole, namely, the optical axis of the objective lens and the axis of the pole are always kept almost parallel to each other.

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