KR900018928A - 대물렌즈 구동장치 - Google Patents

대물렌즈 구동장치 Download PDF

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Publication number
KR900018928A
KR900018928A KR1019890006990A KR890006990A KR900018928A KR 900018928 A KR900018928 A KR 900018928A KR 1019890006990 A KR1019890006990 A KR 1019890006990A KR 890006990 A KR890006990 A KR 890006990A KR 900018928 A KR900018928 A KR 900018928A
Authority
KR
South Korea
Prior art keywords
objective lens
movable
movable member
rotating
rotation axis
Prior art date
Application number
KR1019890006990A
Other languages
English (en)
Other versions
KR920005264B1 (en
Inventor
미쯔오 이시이
유끼오 구라따
히데요시 야마오까
Original Assignee
쯔지 하루오
샤프 가부시끼가이샤
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 쯔지 하루오, 샤프 가부시끼가이샤 filed Critical 쯔지 하루오
Publication of KR900018928A publication Critical patent/KR900018928A/ko
Application granted granted Critical
Publication of KR920005264B1 publication Critical patent/KR920005264B1/ko

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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
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Lens Barrels (AREA)

Abstract

내용 없음

Description

대물렌즈 구동장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 배경을 이루는 광 디스크 장치의 한 예를 도시한 개략적인 측면도.
제8도는 본 발명에 따른 대물렌즈의 구동장치의 한 실시예를 도시한 평면도.
제9도는 본 발명의 대물렌즈의 구동장치를 도시한 측면도.

Claims (5)

  1. 대물렌즈를 포함한 가동부분을, 상기 대물렌즈의 광축에 직교하는 평면위에서 가요성을 갖는 부재를 받침점으로 하여 회전시키는 대물렌즈 구동장치에 있어서, 대물렌즈(1)를 지지하는 가동부재(2, 11)와, 상기 가동부재를 지지하는 베이스 부재(4, 12)와, 상기 가동부재와 상기 베이스 부재를 접속하여 가요성을 갖는 재료로 형성되는 힌지부(16)와, 상기 힌지부재를 통하는 회전축선을 중심으로하여 상기 가동부재를 상기 베이스 부재에 대해서 상대적으로 회전시키는 회전수단(65, 66, 81, 82, 83, 84)을 구비하고, 상기 힌지부재를 통하여 상기 회전축선을 상기 가동부재의 중심위치 및 상기 가동부재의 관성 모멘트의 균형이 잡힌 위치를 통과하는 것을 특징으로 하는 대물렌즈 구동장치.
  2. 제1항에 있어서, 상기 회전수단은 상기 가동부재를 상기 회전 방향으로 구동하는 전자석 코일(81, 82, 83, 84)과 자기 회로수단(65, 66)으로 형성되는 자기 구동부를 포함하는 것을 특징으로 하는 대물렌즈 구동장치.
  3. 제2항에 있어서, 상기 자기 구동부는 상기 회전축선에 관해서 거의 대칭인 위치에 설치된 것을 특징으로 하는 대물렌즈 구동장치.
  4. 제3항에 있어서, 상기 전자석 코일은 상기 가동부에 설치된 코일(81, 82, 83, 84)을 포함하는 것을 특징으로 하는 대물렌즈 구동장치.
  5. 제4항에 있어서, 상기 자기 회로수단은 상기 코일에 설치된 마그네트(65, 66)를 포함하는 것을 특징으로 하는 대물렌즈 구동장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR8906990A 1988-05-25 1989-05-25 Driving apparatus for objective lens KR920005264B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1988069064U JP2536436Y2 (ja) 1988-05-25 1988-05-25 対物レンズ駆動装置
JP63-69064 1988-05-25

Publications (2)

Publication Number Publication Date
KR900018928A true KR900018928A (ko) 1990-12-22
KR920005264B1 KR920005264B1 (en) 1992-06-29

Family

ID=13391768

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8906990A KR920005264B1 (en) 1988-05-25 1989-05-25 Driving apparatus for objective lens

Country Status (6)

Country Link
US (1) US4988165A (ko)
EP (1) EP0343979B1 (ko)
JP (1) JP2536436Y2 (ko)
KR (1) KR920005264B1 (ko)
CA (1) CA1323696C (ko)
DE (1) DE68916861T2 (ko)

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US5265079A (en) 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
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NL9001492A (nl) * 1990-06-29 1992-01-16 Philips Nv Electro-optische aftastinrichting, alsmede optische speler voorzien van de aftastinrichting.
US5140470A (en) * 1991-01-07 1992-08-18 New Focus, Inc. Optical mounting apparatus
US5729511A (en) 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
US5808980A (en) * 1991-02-15 1998-09-15 Discovision Associates Seek actuator for optical recording
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
US6069857A (en) 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
JPH04313824A (ja) * 1991-04-12 1992-11-05 Pioneer Electron Corp 光学式情報読取装置におけるレンズ駆動装置
JPH05205283A (ja) * 1992-01-27 1993-08-13 Sharp Corp 光ピックアップの対物レンズ駆動装置
US5748578A (en) 1995-01-25 1998-05-05 Discovision Associates Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US6091684A (en) 1995-01-25 2000-07-18 Discovision Associates Optical disc system and method for changing the rotational rate of an information storage medium
US5920539A (en) 1995-01-25 1999-07-06 Discovision Associates Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor
JPH0954969A (ja) * 1995-08-11 1997-02-25 Minebea Co Ltd 対物レンズ支持装置
US5757561A (en) 1996-11-26 1998-05-26 Newport Corporation Precision optical mounts
US6198580B1 (en) 1998-08-17 2001-03-06 Newport Corporation Gimballed optical mount
US6516130B1 (en) 1998-12-30 2003-02-04 Newport Corporation Clip that aligns a fiber optic cable with a laser diode within a fiber optic module
FR2790115B1 (fr) 1999-02-23 2001-05-04 Micro Controle Procede et dispositif pour deplacer un mobile sur une base montee elastiquement par rapport au sol
US6996506B2 (en) * 1999-02-23 2006-02-07 Newport Corporation Process and device for displacing a moveable unit on a base
US6511035B1 (en) 1999-08-03 2003-01-28 Newport Corporation Active vibration isolation systems with nonlinear compensation to account for actuator saturation
US6655840B2 (en) 2001-02-13 2003-12-02 Newport Corporation Stiff cross roller bearing configuration
US6601524B2 (en) 2001-03-28 2003-08-05 Newport Corporation Translation table with a spring biased dovetail bearing
US6791058B2 (en) 2001-04-25 2004-09-14 Newport Corporation Automatic laser weld machine for assembling photonic components
US6568666B2 (en) 2001-06-13 2003-05-27 Newport Corporation Method for providing high vertical damping to pneumatic isolators during large amplitude disturbances of isolated payload
US6619611B2 (en) 2001-07-02 2003-09-16 Newport Corporation Pneumatic vibration isolator utilizing an elastomeric element for isolation and attenuation of horizontal vibration
US6966535B2 (en) * 2002-05-07 2005-11-22 Newport Corporation Snubber for pneumatically isolated platforms
US8231098B2 (en) 2004-12-07 2012-07-31 Newport Corporation Methods and devices for active vibration damping of an optical structure
US7570547B2 (en) * 2005-08-22 2009-08-04 Konica Minolta Opto, Inc. Objective lens unit and optical pickup device
EP2681507B1 (en) * 2011-03-03 2018-11-28 Visionix Ltd. Automatic lens mapping system

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Also Published As

Publication number Publication date
EP0343979A3 (en) 1991-01-09
JPH01174716U (ko) 1989-12-12
CA1323696C (en) 1993-10-26
KR920005264B1 (en) 1992-06-29
JP2536436Y2 (ja) 1997-05-21
EP0343979A2 (en) 1989-11-29
DE68916861T2 (de) 1994-12-22
DE68916861D1 (de) 1994-08-25
EP0343979B1 (en) 1994-07-20
US4988165A (en) 1991-01-29

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