Objective lens mount utilizing leaf springs

Details Objective lens mount utilizing leaf springs Objective lens mount utilizing leaf springs

1991-04-02

1991-12-10

Richardson, Robert L.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

G11B 700

Patent

active

050724339

ABSTRACT:
A device for supporting an objective lens of an optical pickup in which one end of a first leaf spring is secured to a spring mounting portion of a base through a first elastic member. A connective member is secured to the other end of the first leaf spring through a second elastic member. One end of a second leaf spring is secured to the connective member through a third elastic member. A holder member for holding an objective lens is secured to the other end of the second leaf spring through a fourth elastic member. The objective lens is displaceable by one of the two leaf springs in a tracking direction and is displaceable by the other leaf spring in a focusing direction. Each of said elastic members is made of an elastic material different in elastic force from the leaf springs.

REFERENCES:
patent: 4302830 (1981-11-01), Hamaoka et al.

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