JP5686717B2 - 光情報再生装置 - Google Patents

光情報再生装置 Download PDF

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Publication number
JP5686717B2
JP5686717B2 JP2011258428A JP2011258428A JP5686717B2 JP 5686717 B2 JP5686717 B2 JP 5686717B2 JP 2011258428 A JP2011258428 A JP 2011258428A JP 2011258428 A JP2011258428 A JP 2011258428A JP 5686717 B2 JP5686717 B2 JP 5686717B2
Authority
JP
Japan
Prior art keywords
light
signal
detector
optical
reference light
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
JP2011258428A
Other languages
English (en)
Japanese (ja)
Other versions
JP2013114705A5 (enExample
JP2013114705A (ja
Inventor
達朗 井手
達朗 井手
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 Consumer Electronics Co Ltd
Original Assignee
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 Media Electronics Co Ltd filed Critical Hitachi Media Electronics Co Ltd
Priority to JP2011258428A priority Critical patent/JP5686717B2/ja
Priority to US13/685,761 priority patent/US8493830B2/en
Priority to CN201210494954.3A priority patent/CN103137148B/zh
Publication of JP2013114705A publication Critical patent/JP2013114705A/ja
Publication of JP2013114705A5 publication Critical patent/JP2013114705A5/ja
Application granted granted Critical
Publication of JP5686717B2 publication Critical patent/JP5686717B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B7/0908—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 for focusing only
    • G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP2011258428A 2011-11-28 2011-11-28 光情報再生装置 Expired - Fee Related JP5686717B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2011258428A JP5686717B2 (ja) 2011-11-28 2011-11-28 光情報再生装置
US13/685,761 US8493830B2 (en) 2011-11-28 2012-11-27 Optical information reproducing apparatus
CN201210494954.3A CN103137148B (zh) 2011-11-28 2012-11-28 光信息再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011258428A JP5686717B2 (ja) 2011-11-28 2011-11-28 光情報再生装置

Publications (3)

Publication Number Publication Date
JP2013114705A JP2013114705A (ja) 2013-06-10
JP2013114705A5 JP2013114705A5 (enExample) 2014-07-03
JP5686717B2 true JP5686717B2 (ja) 2015-03-18

Family

ID=48466798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011258428A Expired - Fee Related JP5686717B2 (ja) 2011-11-28 2011-11-28 光情報再生装置

Country Status (3)

Country Link
US (1) US8493830B2 (enExample)
JP (1) JP5686717B2 (enExample)
CN (1) CN103137148B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6003366B2 (ja) * 2012-08-06 2016-10-05 ソニー株式会社 再生装置、再生方法
CN104297218B (zh) * 2013-07-15 2016-09-14 中国科学院沈阳自动化研究所 远距离冶金液态金属成分的原位、在线检测装置及方法
JP2015028823A (ja) * 2013-07-30 2015-02-12 ソニー株式会社 再生装置および再生方法
NL2017933A (en) * 2015-12-18 2017-06-26 Asml Netherlands Bv Focus monitoring arrangement and inspection apparatus including such an arrangement
US10187948B1 (en) * 2018-05-31 2019-01-22 Pixart Imaging Inc. Light control circuit and optical encoder system
JP7090135B2 (ja) * 2020-10-23 2022-06-23 浜松ホトニクス株式会社 レーザ装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4482036B2 (ja) * 2005-11-24 2010-06-16 富士通株式会社 ホログラフィック記録装置
KR100767932B1 (ko) * 2006-04-06 2007-10-18 주식회사 대우일렉트로닉스 광 정보 재생 장치, 트랙킹 서보 제어 장치 및 트랙킹 제어방법
KR100738984B1 (ko) * 2006-06-07 2007-07-13 주식회사 대우일렉트로닉스 광정보 처리장치 및 이를 이용한 광정보 기록 및 재생방법
JP4861948B2 (ja) 2007-02-23 2012-01-25 株式会社日立製作所 光ヘッドおよび光ディスク装置
US8023390B2 (en) 2007-02-23 2011-09-20 Hitachi, Ltd. Optical head and optical disk device
JP5081763B2 (ja) * 2008-08-13 2012-11-28 株式会社日立メディアエレクトロニクス 光情報検出方法、光ピックアップ及び光情報記録再生装置
JP5256161B2 (ja) * 2009-10-02 2013-08-07 日立コンシューマエレクトロニクス株式会社 光情報記録再生装置及び情報再生装置
JP5417269B2 (ja) 2010-07-05 2014-02-12 日立コンシューマエレクトロニクス株式会社 光情報再生装置

Also Published As

Publication number Publication date
US8493830B2 (en) 2013-07-23
CN103137148A (zh) 2013-06-05
JP2013114705A (ja) 2013-06-10
US20130135978A1 (en) 2013-05-30
CN103137148B (zh) 2016-01-13

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