JPS6442520U - - Google Patents

Info

Publication number
JPS6442520U
JPS6442520U JP1987138086U JP13808687U JPS6442520U JP S6442520 U JPS6442520 U JP S6442520U JP 1987138086 U JP1987138086 U JP 1987138086U JP 13808687 U JP13808687 U JP 13808687U JP S6442520 U JPS6442520 U JP S6442520U
Authority
JP
Japan
Prior art keywords
objective lens
optical
support device
optical disk
axis
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.)
Pending
Application number
JP1987138086U
Other languages
English (en)
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 filed Critical
Priority to JP1987138086U priority Critical patent/JPS6442520U/ja
Priority to US07/199,103 priority patent/US4878214A/en
Publication of JPS6442520U publication Critical patent/JPS6442520U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0932—Details of sprung supports
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)

Description

【図面の簡単な説明】
第１図は本考案の実施例に係る光学式ピツクア
ツプの対物レンズ支持装置の斜視図、第２図は第
１図の光学式ピツクアツプの対物レンズ支持装置
に備えられている支持棒の拡大斜視図、第３図は
第２図の―断面図、第４図は他の実施例に係
る支持棒の拡大断面図、第５図は第４図の―
断面図、第６図は支持棒の変形状態の説明図、第
７図は従来例に係る光学式ピツクアツプの対物レ
ンズ支持装置の斜視図、第８図は第７図の光学式
ピツクアツプの対物レンズ支持装置の―断面
図である。 ２１……対物レンズ、２２……レンズホルダ、
２３，３３……支持棒、２３ａ，３３ａ……くび
れ部、２３ｂ……中間部、２４……固定部、２６
……フオーカシングコイル、２７……トラツキン
グコイル、２８……ヨーク、２９……マグネツト
。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 光デイスクに対向する対物レンズがレンズ
    ホルダに保持されており、このレンズホルダが、
    平行に配置された複数本の弾性材料製の支持棒に
    よつて動作自在に支持されており且つ、レンズホ
    ルダを、対物レンズの光軸方向と光デイスクの記
    録面に沿う方向とへ駆動する駆動機構が設けられ
    ている光学式ピツクアツプの対物レンズ支持装置
    において、前記弾性材料製の支持棒は両端部にく
    びれ部を有しており且つ、このくびれ部では、主
    軸を通り且つ対物レンズの光軸方向に延びる軸に
    対する断面二次モーメントと、主軸を通り且つ光
    デイスクの記録面に沿う方向に延びる軸に対する
    断面二次モーメントとが等しくなる断面形状に形
    成されていることを特徴とする光学式ピツクアツ
    プの対物レンズ支持装置。 (2) くびれ部の断面形状は、正方形である実用
    新案登録請求の範囲第１項記載の光学式ピツクア
    ツプの対物レンズ支持装置。 (3) くびれ部の断面形状は、正円形である実用
    新案登録請求の範囲第１項記載の光学式ピツクア
    ツプの対物レンズ支持装置。
JP1987138086U 1987-09-08 1987-09-08 Pending JPS6442520U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1987138086U JPS6442520U (ja) 1987-09-08 1987-09-08
US07/199,103 US4878214A (en) 1987-09-08 1988-05-26 Objective lens supporting device for optical pickup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987138086U JPS6442520U (ja) 1987-09-08 1987-09-08

Publications (1)

Publication Number Publication Date
JPS6442520U true JPS6442520U (ja) 1989-03-14

Family

ID=15213626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987138086U Pending JPS6442520U (ja) 1987-09-08 1987-09-08

Country Status (2)

Country Link
US (1) US4878214A (ja)
JP (1) JPS6442520U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005088620A1 (ja) * 2004-03-16 2008-01-31 パイオニア株式会社 光学ピックアップ装置

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63257927A (ja) * 1987-04-15 1988-10-25 Pioneer Electronic Corp ピツクアツプアクチユエ−タ
JP2683243B2 (ja) * 1988-03-29 1997-11-26 オリンパス光学工業株式会社 レンズの支持装置
US5046821A (en) * 1988-11-02 1991-09-10 Nec Corporation Optics support for an optical disk drive
US5206762A (en) * 1988-12-01 1993-04-27 Kabushiki Kaisha Toshiba Viscoelastic substance and objective lens driving apparatus with the same
JP2684762B2 (ja) * 1989-04-20 1997-12-03 ソニー株式会社 対物レンズ駆動装置
JPH02281431A (ja) * 1989-04-21 1990-11-19 Teac Corp 対物レンズ駆動装置
JPH0690803B2 (ja) * 1989-05-22 1994-11-14 パイオニア株式会社 情報読取装置の製造方法
US5124965A (en) * 1989-09-28 1992-06-23 Matsushita Electric Industrial Co., Ltd. Optical head supporting apparatus
JPH03165330A (ja) * 1989-11-22 1991-07-17 Konica Corp 光ピックアップ
US5134527A (en) * 1990-04-25 1992-07-28 Industrial Technology Research Institute Suspension mechanism for an objective lens of an optical head
JP2741092B2 (ja) * 1990-05-29 1998-04-15 アルプス電気株式会社 光ディスクプレーヤの振動防止装置
NL9001492A (nl) * 1990-06-29 1992-01-16 Philips Nv Electro-optische aftastinrichting, alsmede optische speler voorzien van de aftastinrichting.
US5617402A (en) * 1990-12-21 1997-04-01 Art Tech Gigadisc "Atg" Access and tracking device for an optical disc
KR920015291A (ko) * 1991-01-31 1992-08-26 강진구 광학기록 및 재생장치의 대물렌즈 구동수단
KR920022223A (ko) * 1991-05-13 1992-12-19 강진구 광학계 구동장치
KR950013703B1 (ko) * 1991-05-13 1995-11-13 삼성전자주식회사 광 픽업의 대물렌즈 구동장치
US5177640A (en) * 1991-10-08 1993-01-05 Applied Magnetics Corporation Two-axis moving coil actuator
US5414563A (en) * 1992-07-28 1995-05-09 Asahi Kogaku Kogyo Kabushiki Kaisha Electromagnetic objective lens driving apparatus of optical data recording and reproducing apparatus
US5428589A (en) * 1993-08-17 1995-06-27 Eastman Kodak Company Apparatus and method for an electromagnetic actuator with two orthogonal axes of motion
TW282529B (ja) * 1993-12-28 1996-08-01 Sony Co Ltd
JPH08167158A (ja) * 1994-12-13 1996-06-25 Sony Corp 二軸アクチュエータ
DE19910947A1 (de) * 1999-03-12 2000-09-14 Zeiss Carl Fa Vorrichtung zum Verschieben eines optischen Elementes entlang der optischen Achse
JP2001118270A (ja) * 1999-10-21 2001-04-27 Sankyo Seiki Mfg Co Ltd 光ピックアップ装置およびその製造方法
SG99889A1 (en) * 2000-02-25 2003-11-27 Sony Corp Recording medium, recording apparatus and reading apparatus
JP2007108523A (ja) * 2005-10-14 2007-04-26 Sharp Corp 光学部品モジュールおよびカメラモジュール

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004841A1 (en) * 1983-05-31 1984-12-06 Matsushita Electric Ind Co Ltd Apparatus for driving objective lens of optical disc player
JPS6069841A (ja) * 1983-09-26 1985-04-20 Toshiba Corp 光学ヘッド装置
JPH0668843B2 (ja) * 1985-08-16 1994-08-31 ソニー株式会社 光学ピツクアツプ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005088620A1 (ja) * 2004-03-16 2008-01-31 パイオニア株式会社 光学ピックアップ装置

Also Published As

Publication number Publication date
US4878214A (en) 1989-10-31

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