Objective lens driving device settled within a height limit of an optical pickup unit
AssigneeMitsumi Electric Co., Ltd.
InventorTsukasa Yamada
Life of this patent
Estimating the term…
Abstract
In an objective lens driving device of a symmetry type having an object lens, an objective lens holder for holding the objective lens, and a damper base apart from the objective lens holder in a tangential direction, a suspension member elastically supports the objective lens holder with respect to the damper base. The suspension member consists of four suspension wires disposed on both sides of the damper base and the objective lens holder. The suspension member inclines upward in a direction from the damper base to the objective lens holder by a predetermined angle in an inactive state.
Claims13
An objective lens driving device of a symmetry type comprising:
- an objective lens;
- an objective lens holder for holding said objective lens;
- a damper base apart from said objective lens holder in a tangential direction;
- and
- a suspension member elastically supporting said objective lens holder with respect to said damper base, said suspension member consisting of a plurality of suspension wires disposed on both sides of said damper base and said objective lens holder, said suspension member inclining upward in a direction from said damper base to said objective lens holder by a predetermined angle in an inactive state.
Dependencies are inferred from the claim text.