DE69613871T2 - Optische Einrichtung - Google Patents

Optische Einrichtung

Info

Publication number
DE69613871T2
DE69613871T2 DE69613871T DE69613871T DE69613871T2 DE 69613871 T2 DE69613871 T2 DE 69613871T2 DE 69613871 T DE69613871 T DE 69613871T DE 69613871 T DE69613871 T DE 69613871T DE 69613871 T2 DE69613871 T2 DE 69613871T2
Authority
DE
Germany
Prior art keywords
light
optical
light receiving
receiving section
section
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
DE69613871T
Other languages
German (de)
English (en)
Other versions
DE69613871D1 (de
Inventor
Masato Doi
Takashi Nakao
Hironobu Narui
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.)
Sony Corp
Original Assignee
Sony 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
Application filed by Sony Corp filed Critical Sony Corp
Publication of DE69613871D1 publication Critical patent/DE69613871D1/de
Application granted granted Critical
Publication of DE69613871T2 publication Critical patent/DE69613871T2/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
    • 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
    • G11B7/0901—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 track following only
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Semiconductor Lasers (AREA)
DE69613871T 1995-02-23 1996-02-21 Optische Einrichtung Expired - Fee Related DE69613871T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7035528A JPH08235608A (ja) 1995-02-23 1995-02-23 光学装置

Publications (2)

Publication Number Publication Date
DE69613871D1 DE69613871D1 (de) 2001-08-23
DE69613871T2 true DE69613871T2 (de) 2002-04-11

Family

ID=12444246

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69613871T Expired - Fee Related DE69613871T2 (de) 1995-02-23 1996-02-21 Optische Einrichtung

Country Status (7)

Country Link
US (1) US5703863A (enExample)
EP (1) EP0729138B1 (enExample)
JP (1) JPH08235608A (enExample)
KR (1) KR960032347A (enExample)
DE (1) DE69613871T2 (enExample)
SG (1) SG52711A1 (enExample)
TW (1) TW309614B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7038994B1 (en) * 1996-05-27 2006-05-02 Sony Corporation Optical pickup device with a plurality of laser couplers
US6504812B2 (en) 1996-05-27 2003-01-07 Sony Corporation Optical pickup device with a plurality of laser couplers
JPH1064084A (ja) * 1996-08-19 1998-03-06 Sony Corp 光学装置
WO2000025310A1 (en) * 1998-10-27 2000-05-04 Sony Corporation Optical pickup and optical reproduction device
EP1269467A2 (en) * 1999-12-02 2003-01-02 Teraconnect, Inc. Method and apparatus for reading out and writing to an optical disc
JP2001256665A (ja) * 2000-01-07 2001-09-21 Rohm Co Ltd 受発光複合素子およびそれを用いた光ピックアップ装置
WO2015087257A2 (en) * 2013-12-10 2015-06-18 Koninklijke Philips N.V. Optical storage medium, oam-light generating device comprising an optical storage medium, hyperpolarization device comprising an oam-light generating device and magnetic resonance system comprising a hyperpolarization device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517479A (en) * 1993-03-26 1996-05-14 Matsushita Electronics Corporation Optical head including a semiconductor laser having a non-scatter incident area

Also Published As

Publication number Publication date
JPH08235608A (ja) 1996-09-13
DE69613871D1 (de) 2001-08-23
KR960032347A (ko) 1996-09-17
EP0729138A3 (en) 1998-04-22
EP0729138B1 (en) 2001-07-18
EP0729138A2 (en) 1996-08-28
SG52711A1 (en) 1998-09-28
TW309614B (enExample) 1997-07-01
US5703863A (en) 1997-12-30

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Legal Events

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