JPH08235608A - 光学装置 - Google Patents

光学装置

Info

Publication number
JPH08235608A
JPH08235608A JP7035528A JP3552895A JPH08235608A JP H08235608 A JPH08235608 A JP H08235608A JP 7035528 A JP7035528 A JP 7035528A JP 3552895 A JP3552895 A JP 3552895A JP H08235608 A JPH08235608 A JP H08235608A
Authority
JP
Japan
Prior art keywords
light
optical
light receiving
light emitting
unit
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.)
Pending
Application number
JP7035528A
Other languages
English (en)
Japanese (ja)
Inventor
Masato Doi
正人 土居
Hironobu Narui
啓修 成井
Takashi Nakao
敬 中尾
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
Priority to JP7035528A priority Critical patent/JPH08235608A/ja
Priority to DE69613871T priority patent/DE69613871T2/de
Priority to EP96102615A priority patent/EP0729138B1/en
Priority to KR1019960004014A priority patent/KR960032347A/ko
Priority to US08/603,872 priority patent/US5703863A/en
Priority to SG1996008143A priority patent/SG52711A1/en
Priority to TW085102071A priority patent/TW309614B/zh
Publication of JPH08235608A publication Critical patent/JPH08235608A/ja
Pending 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)
JP7035528A 1995-02-23 1995-02-23 光学装置 Pending JPH08235608A (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP7035528A JPH08235608A (ja) 1995-02-23 1995-02-23 光学装置
DE69613871T DE69613871T2 (de) 1995-02-23 1996-02-21 Optische Einrichtung
EP96102615A EP0729138B1 (en) 1995-02-23 1996-02-21 Optical device
KR1019960004014A KR960032347A (ko) 1995-02-23 1996-02-21 광학장치
US08/603,872 US5703863A (en) 1995-02-23 1996-02-22 Optical device which detects reflected light with a push-pull method without dividing the reflected light
SG1996008143A SG52711A1 (en) 1995-02-23 1996-02-23 Optical device
TW085102071A TW309614B (enExample) 1995-02-23 1996-02-23

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 (1)

Publication Number Publication Date
JPH08235608A true JPH08235608A (ja) 1996-09-13

Family

ID=12444246

Family Applications (1)

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

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (6)

* 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
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
DE69613871D1 (de) 2001-08-23
KR960032347A (ko) 1996-09-17
DE69613871T2 (de) 2002-04-11
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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