Objective lens drive having optical axis adjustment function

Details Objective lens drive having optical axis adjustment function Objective lens drive having optical axis adjustment function

2007-09-04

2007-09-04

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053190

Reexamination Certificate

active

10692042

ABSTRACT:
An objective lens drive having an optical axis adjustment function. An objective lens is supported by a lens holder, and the lens holder is supported on a suspension holder by way of a suspension. The suspension holder is supported so as to be rotatable about an axis extending in a direction in which the suspension extends, whereby the suspension holder is supported laterally by means of multilayer piezoelectric elements. When a drive voltage is applied to the multilayer piezoelectric elements, the piezoelectric elements are displaced vertically, whereupon the suspension holder is rotated about the axis, to thus adjust the optical axis of the objective lens.

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JP 09-050637 Translation Japan, Sugawara Yutaka, Publication Feb. 1997.
JP 2001-344788 Translation Japan, Hiroi Masaki , Publication Dec. 2001.

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