Invention Grant
- Patent Title: Optical pickup device and optical disc drive apparatus
- Patent Title (中): 光拾取装置和光盘驱动装置
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Application No.: US11830012Application Date: 2007-07-30
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Publication No.: US07873970B2Publication Date: 2011-01-18
- Inventor: Satoshi Arai , Hiroaki Furuichi , Yoshio Oozeki , Rika Nomura , Masayuki Okamura , Kazumi Takahashi , Mitsuo Satake
- Applicant: Satoshi Arai , Hiroaki Furuichi , Yoshio Oozeki , Rika Nomura , Masayuki Okamura , Kazumi Takahashi , Mitsuo Satake
- Applicant Address: JP Iwate
- Assignee: Hitachi Media Electronics Co., Ltd.
- Current Assignee: Hitachi Media Electronics Co., Ltd.
- Current Assignee Address: JP Iwate
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2006-227529 20060824
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
The present invention provides an optical pickup device employing a disc protector that includes a plurality of first protrusions and at least one second protrusion disposed on the lens holder, wherein the first protrusions are formed by applying a first adhesive to a plurality of areas of a top surface of the lens holder, wherein the first protrusions are arranged at different locations in the tracking direction such that the objective lens is sandwiched between the first protrusions, wherein the at least one second protrusion protrudes is formed by applying a second adhesive to at least one area of the top surface of the lens holder, and wherein tips of the first protrusions are closer to the optical disc than a tip of the at least one second protrusion.
Public/Granted literature
- US20080052734A1 OPTICAL PICKUP DEVICE AND OPTICAL DISC DRIVE APPARATUS Public/Granted day:2008-02-28
Information query
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