Title:
OBJECTIVE LENS DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/065783
Kind Code:
A1
Abstract:
An objective lens driving device comprising objective lens (13) for focusing
a light flux from light source on optical disk (11) and lens holder (14) for holding
the objective lens (13). The lens holder (14) has second adhesion part (14j)
and first adhesion part (14i) for holding the objective lens (13) by adhesion.
The objective lens (13) is adhered by application of first adhesive (25) to the
first adhesion part (14i), and the tilt of optical axis of the objective lens (13)
is adjusted by deforming the first adhesive (25). Thereafter, the objective
lens (13) is fixed to the lens holder (14) by application of second adhesive (26)
to the second adhesion part (14j), the second adhesive (26) having a Young's
modulus after hardening greater than that of the first adhesive (25).
Inventors:
YABE MITORU (JP)
NAKAMURA KEIJI (JP)
NAKAMURA KEIJI (JP)
Application Number:
PCT/JP2007/065898
Publication Date:
June 05, 2008
Filing Date:
August 15, 2007
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
YABE MITORU (JP)
NAKAMURA KEIJI (JP)
YABE MITORU (JP)
NAKAMURA KEIJI (JP)
International Classes:
G11B7/08; G11B7/135
Foreign References:
| JP2006260761A | 2006-09-28 | |||
| JPH04143929A | 1992-05-18 | |||
| JPH1011765A | 1998-01-16 | |||
| JPH03230328A | 1991-10-14 | |||
| JP2001160239A | 2001-06-12 |
Other References:
See also references of EP 2093760A4
Attorney, Agent or Firm:
MAEDA, Minoru et al. (Koda Bldg. 4F16-2, Yoyogi 2-chom, Shibuya-ku Tokyo, JP)
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