DE3688905D1 - Geraet mit optischem kopf. - Google Patents

Geraet mit optischem kopf.

Info

Publication number
DE3688905D1
DE3688905D1 DE8686115664T DE3688905T DE3688905D1 DE 3688905 D1 DE3688905 D1 DE 3688905D1 DE 8686115664 T DE8686115664 T DE 8686115664T DE 3688905 T DE3688905 T DE 3688905T DE 3688905 D1 DE3688905 D1 DE 3688905D1
Authority
DE
Germany
Prior art keywords
optical head
optical
head
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
DE8686115664T
Other languages
English (en)
Other versions
DE3688905T2 (de
Inventor
Shinsuke Shikama
Eiichi Toide
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 JP60260358A external-priority patent/JPH07105055B2/ja
Priority claimed from JP60260356A external-priority patent/JPS62137734A/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE3688905D1 publication Critical patent/DE3688905D1/de
Application granted granted Critical
Publication of DE3688905T2 publication Critical patent/DE3688905T2/de
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
    • G11B7/08—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
    • G11B7/12—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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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)
DE86115664T 1985-11-20 1986-11-11 Gerät mit optischem Kopf. Expired - Fee Related DE3688905T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60260358A JPH07105055B2 (ja) 1985-11-20 1985-11-20 光学ヘツド装置
JP60260356A JPS62137734A (ja) 1985-11-20 1985-11-20 光学ヘツド装置

Publications (2)

Publication Number Publication Date
DE3688905D1 true DE3688905D1 (de) 1993-09-23
DE3688905T2 DE3688905T2 (de) 1994-03-10

Family

ID=26544570

Family Applications (1)

Application Number Title Priority Date Filing Date
DE86115664T Expired - Fee Related DE3688905T2 (de) 1985-11-20 1986-11-11 Gerät mit optischem Kopf.

Country Status (4)

Country Link
US (1) US4835761A (de)
EP (1) EP0223191B1 (de)
KR (1) KR900006956B1 (de)
DE (1) DE3688905T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0612064B1 (de) * 1988-06-23 1997-10-29 Sharp Kabushiki Kaisha Optische Abtastvorrichtung
JPH0263067A (ja) * 1988-08-30 1990-03-02 Konica Corp 画像作成装置の安全装置
US5606541A (en) * 1992-11-13 1997-02-25 International Business Machines Corporation Switchable filter for modulating laser intensity and reducing laser feedback in an optical disk device
US5473594A (en) * 1993-02-26 1995-12-05 Kabushiki Kaisha Kenwood Optical pickup device using optical lens coated with antireflection film whose spectral reflectance changes in accordance with wavelength
US5894465A (en) * 1997-01-07 1999-04-13 Rrad-Rite Corporation Transmissive data storage media and an optical head using holographic or acousto-optical deflection
DE10330945A1 (de) * 2003-07-08 2005-02-03 Deutsche Thomson-Brandt Gmbh Optischer Abtaster mit Mikrooptik zur Strahlkombination
JP2005140831A (ja) * 2003-11-04 2005-06-02 Fujitsu Ltd 波長特性可変フィルタ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506495A (nl) * 1975-06-02 1976-12-06 Philips Nv Inrichting voor het uitlezen van een registratie- drager.
JPS56137118A (en) * 1980-03-29 1981-10-26 Rikagaku Kenkyusho Production of lamellar diffraction grating
NL8104946A (nl) * 1981-11-02 1983-06-01 Philips Nv Inrichting voor het uitlezen en/of inschrijven van een optisch uitleesbare informatiestructuur op een registratiedrager.
JPS5958637A (ja) * 1982-09-28 1984-04-04 Sony Corp 光学式再生装置
JPS5971142A (ja) * 1982-10-14 1984-04-21 Mitsubishi Electric Corp 光学的情報再生装置
NL8303932A (nl) * 1982-11-17 1984-06-18 Pioneer Electronic Corp Opneeminrichting voor optische plaat.
JPS60257584A (ja) * 1984-06-04 1985-12-19 Sharp Corp 光検出器内蔵型半導体レ−ザ
JPS611078A (ja) * 1984-06-13 1986-01-07 Matsushita Electric Ind Co Ltd 半導体レ−ザ装置
JP2575099B2 (ja) * 1984-10-04 1997-01-22 ソニー株式会社 光学式ヘツドのトラツキング誤差検出装置

Also Published As

Publication number Publication date
EP0223191A3 (en) 1989-06-14
KR900006956B1 (ko) 1990-09-25
US4835761A (en) 1989-05-30
KR870005351A (ko) 1987-06-08
EP0223191B1 (de) 1993-08-18
DE3688905T2 (de) 1994-03-10
EP0223191A2 (de) 1987-05-27

Similar Documents

Publication Publication Date Title
DE3687392D1 (de) Optischer kopf.
DE3685448D1 (de) Geraet mit kombiniertem magnetkopf.
DE68921065D1 (de) Optischer kopf.
DE68921712D1 (de) Aufzeichnungsvorrichtung mit abnehmbarem Aufzeichnungskopf.
DE3670768D1 (de) Injektionsgeraet.
DE69023585D1 (de) Optischer Kopf.
DE3679519D1 (de) Optische kopfeinrichtungen.
DE3280232D1 (de) Optischer kopf.
DE3887762D1 (de) Optischer Kopf.
DE3280201D1 (de) Optischer kopf.
DE3776945D1 (de) Optischer kopf.
DE3680865D1 (de) Optischer kopf.
DE3672530D1 (de) Verbindungskopf.
DE3852307D1 (de) Optischer kopf.
DE69020417D1 (de) Optischer Kopf.
DE3482146D1 (de) Optischer kopf.
DE3784859D1 (de) Optischer kopf.
DE3778670D1 (de) Optischer kopf.
DE69022447D1 (de) Optischer Kopf.
DE3486047D1 (de) Optischer kopf.
DE3683833D1 (de) Optischer kopf.
DE3886930D1 (de) Optischer kopf.
DE3677658D1 (de) Optische kopfvorrichtung.
DE3683634D1 (de) Anordnung mit optischem kopf.
DE69018503D1 (de) Optischer Kopf.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee