KR850005675A - 광학디스크 장치 - Google Patents

광학디스크 장치

Info

Publication number
KR850005675A
KR850005675A KR1019850000566A KR850000566A KR850005675A KR 850005675 A KR850005675 A KR 850005675A KR 1019850000566 A KR1019850000566 A KR 1019850000566A KR 850000566 A KR850000566 A KR 850000566A KR 850005675 A KR850005675 A KR 850005675A
Authority
KR
South Korea
Prior art keywords
optical disc
disc device
optical
disc
Prior art date
Application number
KR1019850000566A
Other languages
English (en)
Other versions
KR890003556B1 (ko
Inventor
노리아끼 와카바야시
히로미찌 이시바시
Original Assignee
마쯔시다덴기산교 가부시기가이샤
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
Priority claimed from JP59016263A external-priority patent/JPH061553B2/ja
Priority claimed from JP59175931A external-priority patent/JPH061554B2/ja
Priority claimed from JP59175932A external-priority patent/JPH061555B2/ja
Application filed by 마쯔시다덴기산교 가부시기가이샤 filed Critical 마쯔시다덴기산교 가부시기가이샤
Publication of KR850005675A publication Critical patent/KR850005675A/ko
Application granted granted Critical
Publication of KR890003556B1 publication Critical patent/KR890003556B1/ko

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
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
KR1019850000566A 1984-01-31 1985-01-30 광학디스크 장치 KR890003556B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP59-16263 1984-01-31
JP59016263A JPH061553B2 (ja) 1984-01-31 1984-01-31 光デイスク装置
JP59175931A JPH061554B2 (ja) 1984-08-24 1984-08-24 光学ピツクアツプ装置
JP59-175932 1984-08-24
JP59175932A JPH061555B2 (ja) 1984-08-24 1984-08-24 光学ピツクアツプ装置
JP59-175931 1984-08-24

Publications (2)

Publication Number Publication Date
KR850005675A true KR850005675A (ko) 1985-08-28
KR890003556B1 KR890003556B1 (ko) 1989-09-23

Family

ID=27281325

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850000566A KR890003556B1 (ko) 1984-01-31 1985-01-30 광학디스크 장치

Country Status (4)

Country Link
US (1) US4669073A (ko)
EP (1) EP0156460B1 (ko)
KR (1) KR890003556B1 (ko)
DE (1) DE3573853D1 (ko)

Families Citing this family (50)

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DE3446991C1 (de) * 1984-12-21 1985-07-25 Nixdorf Computer Ag, 4790 Paderborn Einrichtung zum Inspizieren der Oberfläche von Magnetspeicherplatten
US4761774A (en) * 1985-05-30 1988-08-02 Matsushita Electric Industrial Co., Ltd. Optical disc drive apparatus
EP0214529B1 (de) * 1985-08-27 1991-01-02 Siemens Aktiengesellschaft Positioniereinrichtung für einen optischen Datenspeicher
EP0226647B1 (en) * 1985-12-17 1991-05-29 Ibm Deutschland Gmbh Read/write head for optical disks
US5001694A (en) * 1986-05-06 1991-03-19 Pencom International Corp. Tracking and focus actuator for a holographic optical head
DE3681178D1 (de) * 1986-12-30 1991-10-02 Ibm Deutschland Schwenkbarer zugriffsarm fuer optische platten.
US4959824A (en) * 1987-07-31 1990-09-25 Minolta Camera Kabushiki Kaisha Optical information record/pickup head assembly
US4920442A (en) * 1988-09-08 1990-04-24 Quantum Corporation Releasable servo writing fixture connector
US5132944A (en) * 1988-09-20 1992-07-21 Hewlett-Packard Company Half-height magneto-optic disk drive
US6141300A (en) * 1989-06-20 2000-10-31 Discovision Associates Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same
US5136558A (en) * 1989-06-20 1992-08-04 Applied Magnetics Corporation Two axis electromagnetic actuator
US5265079A (en) * 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
US5153870A (en) * 1989-06-29 1992-10-06 Digital Equipment Corporation Rotary head actuator for optical disk
JPH077522B2 (ja) * 1990-01-31 1995-01-30 シャープ株式会社 レンズ駆動用支持体
JPH04114325A (ja) * 1990-09-04 1992-04-15 Matsushita Electric Ind Co Ltd 光ディスク装置
GB2248989B (en) * 1990-10-15 1995-05-24 Applied Magnetics Corp Focus sensing apparatus and method
US5245174A (en) * 1990-10-15 1993-09-14 Applied Magnetics Corporation Focus sensing apparatus utilizing a reflecting surface having variable reflectivity
US5313332A (en) * 1990-11-16 1994-05-17 Applied Magnetics Corporation Flexure suspension for two axis actuator
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
US6069857A (en) * 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
US5808980A (en) * 1991-02-15 1998-09-15 Discovision Associates Seek actuator for optical recording
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
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
KR930009682B1 (ko) * 1991-03-23 1993-10-08 현대전자산업 주식회사 광디스크 구동장치의 광픽업장치
JP2695302B2 (ja) * 1991-05-16 1997-12-24 シャープ株式会社 光ピックアップ駆動装置
US5177640A (en) * 1991-10-08 1993-01-05 Applied Magnetics Corporation Two-axis moving coil actuator
JP2617057B2 (ja) * 1992-02-27 1997-06-04 富士通株式会社 光ディスク装置
US5285062A (en) * 1992-04-14 1994-02-08 Hoetron, Inc. Laser/detector hybrid with mirror source and diffracted return beam
US5381288A (en) * 1992-06-16 1995-01-10 Applied Magnetics Corporation, Inc. Center moment suspension assembly
US5432763A (en) * 1993-03-15 1995-07-11 Hewlett-Packard Company Subminiature rotary actuator optical head
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
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
US5748578A (en) * 1995-01-25 1998-05-05 Discovision Associates Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same
US6631113B1 (en) * 2000-10-04 2003-10-07 Dphi Acquisitions, Inc. Continuous flexible connection method for miniature optical head
CN1643583A (zh) * 2002-03-29 2005-07-20 皇家飞利浦电子股份有限公司 用于将信息记录和 /或复制在可旋转的光盘的信息表面上 /从可旋转的光盘的信息表面记录和 /或复制信息的光盘设备
WO2004027767A1 (en) * 2002-09-19 2004-04-01 Koninklijke Philips Electronics N.V. Optical disc apparatus
US20060113268A1 (en) * 2002-09-19 2006-06-01 Koninjkle Phillips Electronics Nv Optical disc apparatus
JP2006507618A (ja) * 2002-11-22 2006-03-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 旋回光学装置
WO2004049319A1 (en) * 2002-11-27 2004-06-10 Nokia Corporation Read/write device for optical memory and method therefore
CN1898728A (zh) * 2003-12-23 2007-01-17 皇家飞利浦电子股份有限公司 具有旋转臂致动器的光学拾取装置
BR112014003888A2 (pt) 2011-08-19 2017-03-21 Visual Physics Llc sistema ótico opcionalmente transferível com uma espessura reduzida
CA2881826C (en) 2012-08-17 2021-03-30 Visual Physics, Llc A process for transferring microstructures to a final substrate
JP6058977B2 (ja) * 2012-11-15 2017-01-11 シャープ株式会社 蛍光検出装置
BR112015022369A2 (pt) 2013-03-15 2017-07-18 Visual Physics Llc dispositivo de segurança óptica
WO2015148878A2 (en) 2014-03-27 2015-10-01 Visual Physics, Llc An optical device that produces flicker-like optical effects
US10766292B2 (en) 2014-03-27 2020-09-08 Crane & Co., Inc. Optical device that provides flicker-like optical effects
ES2721757T3 (es) 2014-07-17 2019-08-05 Visual Physics Llc Material de lámina polimérico mejorado para su uso en la obtención de documentos de seguridad poliméricos tales como billetes de banco
BR112017017113B1 (pt) 2015-02-11 2022-09-27 Crane & Co., Inc Material de folha fibrosa e método para a aplicação à superfície de um dispositivo de segurança em um material de folha fibrosa
WO2018147966A1 (en) 2017-02-10 2018-08-16 Crane & Co., Inc. Machine-readable optical security device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2126492A5 (ko) * 1971-02-08 1972-10-06 Thomson Csf
DE2337015C2 (de) * 1973-07-20 1983-07-14 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur optischen Abtastung einer um eine vertikale Rotationsachse sich drehenden Platte
JPS5610689B2 (ko) * 1973-07-27 1981-03-10
US4260858A (en) * 1978-06-26 1981-04-07 Leo Beiser Videodisc player with drive means engaging videodisc guide groove
FR2443734A1 (fr) * 1978-12-08 1980-07-04 Thomson Csf Dispositif d'acces a une piste portee par un support enregistrable ou lisible optiquement et systeme optique comportant un tel dispositif
JPS56170537U (ko) * 1980-05-16 1981-12-16
NL8103960A (nl) * 1981-08-26 1983-03-16 Philips Nv Zwenkarminrichting voor een optische aftasteenheid.
JPS5877036A (ja) * 1981-10-30 1983-05-10 Olympus Optical Co Ltd ピット中心検出方法
EP0099123B1 (en) * 1982-07-15 1990-11-28 Matsushita Electric Industrial Co., Ltd. Optical recording and reproducing head
JPS59104733A (ja) * 1982-12-08 1984-06-16 Pioneer Electronic Corp 光学式情報読取装置における光学系駆動装置
JPH0534507A (ja) * 1991-07-31 1993-02-12 Asahi Glass Co Ltd 帯電防止膜及びその製造方法

Also Published As

Publication number Publication date
EP0156460A1 (en) 1985-10-02
KR890003556B1 (ko) 1989-09-23
US4669073A (en) 1987-05-26
DE3573853D1 (en) 1989-11-23
EP0156460B1 (en) 1989-10-18

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Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19920922

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee