US 2013/0160035 A1 · OBJECTIVE LENS HOLDER, OBJECTIVE LENS DRIVING DEVICE, OPTICAL PICKUP DEVICE, AND METHOD FOR MANUFACTURING OBJECTIVE LENS DRIVING DEVICE

Abstract

Provided is an objective lens holder, an objective lens driving device, an optical pickup device, and a method for manufacturing an objective lens driving device, in which an adhesive for fixing coils can be collectively applied to many housings. In the present invention, to collectively apply an adhesive to OBL holders, contact portions are provided to the upper portion and the lower portion of each OBL holder. Specifically, four contact portions are provided to a +Df side end portion of the OBL holder at positions near corner portions of a principal surface portion, respectively. Further, contact portions are provided to a −Df side end portion of the OBL holder at positions overlapping with the above-described contact portions.

Claims9

Dependent claims

An objective lens holder movably supported at an objective lens driving device of an optical pickup device and configured to hold an objective lens, the objective lens holder comprising:

a principal surface portion to which the objective lens is fixed;
and
a sidewall portion provided with bobbins on which tracking coils are wound, wherein
an upper portion of the sidewall portion is provided with a first contact portion, and
a lower portion of the sidewall portion is provided with a second contact portion at a position overlapping with the first contact portion in a plan view, the second contact portion being shaped to be able to come into contact with the first contact portion.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/711,207Filed 11 Dec 2012

Priority

JP 2011-27707019 Dec 2011

Published

20 Jun 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

G11B 7/0901
With provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record…
G11B 7/08
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the…:…
G11B 7/0935
Electromechanical actuators for lens positioning: details of the moving parts
G11B 7/22
Heads, e.g. forming of the optical beam spot or modulation of the optical beam: apparatus or processes for the manufacture of optical heads, e.g.…

Objective lens holder, objective lens driving device, optical pickup device, and method for manufacturing objective lens driving device

Life of this patent

Objective lens holder, objective lens driving device, optical pickup device, and method for manufacturing objective lens driving device

Life of this patent

Abstract

Claims9