CN1311446C - 物镜驱动装置和光盘装置 - Google Patents

物镜驱动装置和光盘装置 Download PDF

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Publication number
CN1311446C
CN1311446C CNB2004100476692A CN200410047669A CN1311446C CN 1311446 C CN1311446 C CN 1311446C CN B2004100476692 A CNB2004100476692 A CN B2004100476692A CN 200410047669 A CN200410047669 A CN 200410047669A CN 1311446 C CN1311446 C CN 1311446C
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CN
China
Prior art keywords
coil
object lens
outer circumferential
circumferential side
coil unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2004100476692A
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English (en)
Chinese (zh)
Other versions
CN1581315A (zh
Inventor
木村胜彦
西田有
末永秀夫
田口博文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Media Electronics Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Media Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Media Electronics Co Ltd filed Critical Hitachi Ltd
Publication of CN1581315A publication Critical patent/CN1581315A/zh
Application granted granted Critical
Publication of CN1311446C publication Critical patent/CN1311446C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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CNB2004100476692A 2003-07-31 2004-05-28 物镜驱动装置和光盘装置 Expired - Fee Related CN1311446C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP204227/2003 2003-07-31
JP2003204227A JP2005050414A (ja) 2003-07-31 2003-07-31 対物レンズ駆動装置および光ディスク装置

Publications (2)

Publication Number Publication Date
CN1581315A CN1581315A (zh) 2005-02-16
CN1311446C true CN1311446C (zh) 2007-04-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100476692A Expired - Fee Related CN1311446C (zh) 2003-07-31 2004-05-28 物镜驱动装置和光盘装置

Country Status (2)

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JP (1) JP2005050414A (ja)
CN (1) CN1311446C (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4537309B2 (ja) 2005-03-29 2010-09-01 富士通株式会社 光ピックアップ
CN100401399C (zh) * 2005-03-29 2008-07-09 富士通株式会社 光学拾取头
JP4564944B2 (ja) 2006-08-08 2010-10-20 株式会社日立メディアエレクトロニクス 光ピックアップ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10162417A (ja) * 1996-11-27 1998-06-19 Mitsumi Electric Co Ltd 光ピックアップ
JPH11191236A (ja) * 1997-10-06 1999-07-13 Toshiba Corp 対物レンズ駆動装置
JPH11238262A (ja) * 1998-02-23 1999-08-31 Ricoh Co Ltd 光ディスクの製造方法
CN1379401A (zh) * 2001-04-12 2002-11-13 三星电子株式会社 光拾取装置和组装该光拾取装置的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10162417A (ja) * 1996-11-27 1998-06-19 Mitsumi Electric Co Ltd 光ピックアップ
JPH11191236A (ja) * 1997-10-06 1999-07-13 Toshiba Corp 対物レンズ駆動装置
JPH11238262A (ja) * 1998-02-23 1999-08-31 Ricoh Co Ltd 光ディスクの製造方法
CN1379401A (zh) * 2001-04-12 2002-11-13 三星电子株式会社 光拾取装置和组装该光拾取装置的方法

Also Published As

Publication number Publication date
CN1581315A (zh) 2005-02-16
JP2005050414A (ja) 2005-02-24

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Tokyo, Japan

Co-patentee after: Hitachi Audio-visual Media Co., Ltd.

Patentee after: Hitachi Ltd.

Address before: Tokyo, Japan

Co-patentee before: Hitachi electronic audio-visual media

Patentee before: Hitachi Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070418

Termination date: 20130528