KR100296680B1 - 광픽업장치 - Google Patents

광픽업장치 Download PDF

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Publication number
KR100296680B1
KR100296680B1 KR1019940037705A KR19940037705A KR100296680B1 KR 100296680 B1 KR100296680 B1 KR 100296680B1 KR 1019940037705 A KR1019940037705 A KR 1019940037705A KR 19940037705 A KR19940037705 A KR 19940037705A KR 100296680 B1 KR100296680 B1 KR 100296680B1
Authority
KR
South Korea
Prior art keywords
optical
objective lens
lens
base member
beam splitter
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
KR1019940037705A
Other languages
English (en)
Korean (ko)
Other versions
KR950020477A (ko
Inventor
후지사와히로또시
Original Assignee
이데이 노부유끼
소니 가부시끼 가이샤
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 이데이 노부유끼, 소니 가부시끼 가이샤 filed Critical 이데이 노부유끼
Publication of KR950020477A publication Critical patent/KR950020477A/ko
Application granted granted Critical
Publication of KR100296680B1 publication Critical patent/KR100296680B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
KR1019940037705A 1993-12-29 1994-12-28 광픽업장치 Expired - Fee Related KR100296680B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP93-355379 1993-12-29
JP35537993A JP3449769B2 (ja) 1993-12-29 1993-12-29 光ピックアップ装置

Publications (2)

Publication Number Publication Date
KR950020477A KR950020477A (ko) 1995-07-24
KR100296680B1 true KR100296680B1 (ko) 2001-10-24

Family

ID=18443597

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940037705A Expired - Fee Related KR100296680B1 (ko) 1993-12-29 1994-12-28 광픽업장치

Country Status (5)

Country Link
US (1) US5497366A (enExample)
JP (1) JP3449769B2 (enExample)
KR (1) KR100296680B1 (enExample)
CN (1) CN1053283C (enExample)
TW (1) TW279979B (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611904A1 (de) * 1996-03-26 1997-10-02 Thomson Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
EP1004115B1 (en) 1997-08-19 2003-03-26 Kabushiki Kaisha Kenwood Optical pickup apparatus, holder and method of producing optical pickup apparatus
KR20020070088A (ko) * 1999-08-04 2002-09-05 가부시키가이샤 히타치세이사쿠쇼 레이저 모듈 및 그를 이용한 광헤드, 광학적 정보 기록재생 장치
KR20040091571A (ko) * 2003-04-21 2004-10-28 마쯔시다덴기산교 가부시키가이샤 광디스크 장치
US7600235B2 (en) 2003-05-21 2009-10-06 Panasonic Corporation Optical disk device
US20040246827A1 (en) * 2003-05-21 2004-12-09 Matsushita Electric Industrial Co., Ltd. Optical disk device
US7573800B2 (en) * 2004-01-29 2009-08-11 Panasonic Corporation Optical pickup and optical disk apparatus
JP2005334928A (ja) * 2004-05-26 2005-12-08 Yamazaki Mazak Corp レーザ加工機における焦点調整装置
JP2008033988A (ja) * 2006-07-26 2008-02-14 Canon Inc 情報記録再生装置、及び、光ピックアップ
US8427928B2 (en) * 2009-01-26 2013-04-23 Panasonic Corporation Optical head and optical information device
JP6394134B2 (ja) * 2014-07-11 2018-09-26 船井電機株式会社 プロジェクタおよびヘッドアップディスプレイ装置
WO2020128295A1 (fr) * 2018-12-17 2020-06-25 Sidel Participations Dispositif de détection optique d'un défaut de positionnement ou de forme d'un corps creux dans un convoyeur d'une unité de conditionnement thermique
CN110908468B (zh) * 2019-11-22 2021-08-20 苏州浪潮智能科技有限公司 一种pcie卡固定装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58220252A (ja) * 1982-06-16 1983-12-21 Hitachi Ltd 光学式ピツクアツプのトラツキング誤差信号検出回路
DE3472322D1 (en) * 1983-08-26 1988-07-28 Hitachi Ltd Optical information recording and reproducing apparatus
US4670869A (en) * 1984-01-03 1987-06-02 Magnetic Peripherals Inc. Switching laser beam apparatus with recombined beam for recording
JPH0633537Y2 (ja) * 1984-06-30 1994-08-31 ソニ−株式会社 感光性半導体装置
EP0205940B1 (de) * 1985-05-31 1989-08-30 Siemens Aktiengesellschaft Optisches System zum Führen des Lesestrahles bei einem magneto-optischen Speicher
JPS63146244A (ja) * 1986-12-10 1988-06-18 Hitachi Ltd 波長多重光記録装置
JPH0296618U (enExample) * 1989-01-17 1990-08-01
JP2902415B2 (ja) * 1989-09-14 1999-06-07 シャープ株式会社 光学ヘッド

Also Published As

Publication number Publication date
JP3449769B2 (ja) 2003-09-22
CN1124867A (zh) 1996-06-19
KR950020477A (ko) 1995-07-24
US5497366A (en) 1996-03-05
JPH07201044A (ja) 1995-08-04
CN1053283C (zh) 2000-06-07
TW279979B (enExample) 1996-07-01

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