KR20090021077A - 대물 광학 소자 및 광 헤드 장치 - Google Patents

대물 광학 소자 및 광 헤드 장치 Download PDF

Info

Publication number
KR20090021077A
KR20090021077A KR1020080080726A KR20080080726A KR20090021077A KR 20090021077 A KR20090021077 A KR 20090021077A KR 1020080080726 A KR1020080080726 A KR 1020080080726A KR 20080080726 A KR20080080726 A KR 20080080726A KR 20090021077 A KR20090021077 A KR 20090021077A
Authority
KR
South Korea
Prior art keywords
recording medium
numerical aperture
information recording
optical information
aberration
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.)
Withdrawn
Application number
KR1020080080726A
Other languages
English (en)
Korean (ko)
Inventor
마사끼 무꼬오
다께시 시마노
Original Assignee
히다치 막셀 가부시키가이샤
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 히다치 막셀 가부시키가이샤 filed Critical 히다치 막셀 가부시키가이샤
Publication of KR20090021077A publication Critical patent/KR20090021077A/ko
Withdrawn legal-status Critical Current

Links

Images

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Head (AREA)
KR1020080080726A 2007-08-24 2008-08-19 대물 광학 소자 및 광 헤드 장치 Withdrawn KR20090021077A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP-P-2007-00218455 2007-08-24
JP2007218455A JP5291906B2 (ja) 2007-08-24 2007-08-24 対物光学素子及び光ヘッド装置

Publications (1)

Publication Number Publication Date
KR20090021077A true KR20090021077A (ko) 2009-02-27

Family

ID=40382026

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080080726A Withdrawn KR20090021077A (ko) 2007-08-24 2008-08-19 대물 광학 소자 및 광 헤드 장치

Country Status (4)

Country Link
US (1) US20090052303A1 (https=)
JP (1) JP5291906B2 (https=)
KR (1) KR20090021077A (https=)
CN (1) CN101373608B (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009295251A (ja) * 2008-06-06 2009-12-17 Hitachi Maxell Ltd 液晶光学素子の駆動方法、光ヘッド装置、及び、液晶光学素子
JPWO2010116828A1 (ja) * 2009-03-30 2012-10-18 コニカミノルタアドバンストレイヤー株式会社 光ピックアップ装置用の集光光学系の光学素子、集光光学系及び光ピックアップ装置
WO2010116852A1 (ja) * 2009-03-30 2010-10-14 コニカミノルタオプト株式会社 対物レンズ、カップリング素子及び光ピックアップ装置
US9851613B2 (en) * 2014-02-21 2017-12-26 Apple Inc. Electro-optic variable aperture lens
CN110784632B (zh) * 2019-11-12 2021-09-03 Oppo广东移动通信有限公司 摄像头和电子装置
CN116204109B (zh) * 2021-11-30 2026-02-06 华为技术有限公司 一种数据读取方法、装置及光存储系统
CN114911149B (zh) * 2022-05-05 2025-12-19 浙江理工大学 一种多参量调谐的全息打印光刻系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020036958A1 (en) * 2000-07-24 2002-03-28 Hidenori Wada Optical element, optical head, optical recording/reproducing apparatus and optical recording/reproducing method
US7206276B2 (en) * 2001-10-12 2007-04-17 Konica Corporation Objective lens, optical element, optical pick-up apparatus and optical information recording and/or reproducing apparatus equipped therewith
US7715286B2 (en) * 2002-06-21 2010-05-11 Sharp Kabushiki Kaisha Optical pickup spherical aberration compensating method, optical pickup spherical aberration focus offset compensating method, and optical pickup device
KR20050006887A (ko) * 2003-07-10 2005-01-17 삼성전자주식회사 포커스 오프셋을 저감할 수 있는 광픽업 및 이를 채용한광 기록 및/또는 재생기기
JP2005071424A (ja) * 2003-08-28 2005-03-17 Pioneer Electronic Corp 収差補正装置および光学式記録媒体再生装置
JP4038467B2 (ja) * 2003-10-15 2008-01-23 株式会社日立製作所 光ピックアップおよび光ディスク装置
JP2005222612A (ja) * 2004-02-05 2005-08-18 Konica Minolta Opto Inc 対物光学素子および光ピックアップ装置
JP2007026540A (ja) * 2005-07-15 2007-02-01 Toshiba Samsung Storage Technology Corp 光ピックアップ装置及び光学的情報処理装置
JP4484814B2 (ja) * 2005-12-26 2010-06-16 株式会社日立メディアエレクトロニクス 収差補正装置及びそれを備える光ピックアップ

Also Published As

Publication number Publication date
CN101373608A (zh) 2009-02-25
JP5291906B2 (ja) 2013-09-18
US20090052303A1 (en) 2009-02-26
JP2009054218A (ja) 2009-03-12
CN101373608B (zh) 2011-08-17

Similar Documents

Publication Publication Date Title
US7170664B2 (en) Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method
US7787063B2 (en) Optical element and optical pickup
JP5291906B2 (ja) 対物光学素子及び光ヘッド装置
JP2000235725A (ja) 収差補正装置及びこれを用いた光ピックアップ装置
CN1685411B (zh) 液晶光学元件和光学装置
JP4472209B2 (ja) 光ピックアップ装置および情報記録再生装置
KR20070004745A (ko) 광학 기록 매체 주사 장치
JP4082085B2 (ja) 光ヘッド装置
JP4792910B2 (ja) 液晶デバイスおよび光ピックアップ
JP2002288866A (ja) 光ヘッド装置
JP4329566B2 (ja) 収差補償装置及び収差補償方法
JP4212978B2 (ja) 収差補正素子、それを備えた光ピックアップ装置、および、それを備えた情報記録再生装置
KR20040071703A (ko) 광학주사장치
JP2009199651A (ja) 対物光学素子及び光ヘッド装置
JP2011054251A (ja) 液晶光学素子及びこれを用いた光ピックアップ装置
US20070047422A1 (en) Compatible optical pickup and an optical recording and/or reproducing apparatus employing a compatible optical pickup
US20070097810A1 (en) Optical head unit and optical disc apparatus
WO2003046897A2 (en) Optical scanning device
KR20070004744A (ko) 다층 가변 굴절률 유닛
JP2006003739A (ja) 位相補正光学素子、光学ピックアップ装置及び位相補正方法
JP2008010062A (ja) 光学素子および光ピックアップ
JP2005266483A (ja) 液晶光学素子及び光学装置
WO2007091184A1 (en) Optical pick-up unit for use in a multi-disc optical player

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20080819

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid