DE3788321D1 - Integrierter Abtaster für optische Platte. - Google Patents

Integrierter Abtaster für optische Platte.

Info

Publication number
DE3788321D1
DE3788321D1 DE87113191T DE3788321T DE3788321D1 DE 3788321 D1 DE3788321 D1 DE 3788321D1 DE 87113191 T DE87113191 T DE 87113191T DE 3788321 T DE3788321 T DE 3788321T DE 3788321 D1 DE3788321 D1 DE 3788321D1
Authority
DE
Germany
Prior art keywords
optical plate
integrated scanner
scanner
integrated
optical
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
DE87113191T
Other languages
English (en)
Other versions
DE3788321T2 (de
Inventor
Seiki Yano
Hiroaki Kudo
Haruhisa Takiguchi
Toshiki Hijikata
Shinji Kaneiwa
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Publication of DE3788321D1 publication Critical patent/DE3788321D1/de
Application granted granted Critical
Publication of DE3788321T2 publication Critical patent/DE3788321T2/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
    • G11B7/12—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
    • G11B7/1384—Fibre optics
    • 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
    • G11B7/0908—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 focusing only
    • G11B7/0912—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 focusing only by push-pull method
    • 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
    • G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Recording Or Reproduction (AREA)
DE87113191T 1986-09-12 1987-09-09 Integrierter Abtaster für optische Platte. Expired - Fee Related DE3788321T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21621486 1986-09-12

Publications (2)

Publication Number Publication Date
DE3788321D1 true DE3788321D1 (de) 1994-01-13
DE3788321T2 DE3788321T2 (de) 1994-03-17

Family

ID=16685063

Family Applications (2)

Application Number Title Priority Date Filing Date
DE87113191T Expired - Fee Related DE3788321T2 (de) 1986-09-12 1987-09-09 Integrierter Abtaster für optische Platte.
DE3751970T Expired - Fee Related DE3751970T2 (de) 1986-09-12 1987-09-09 Integrierter Abstaster für optische Platte

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE3751970T Expired - Fee Related DE3751970T2 (de) 1986-09-12 1987-09-09 Integrierter Abstaster für optische Platte

Country Status (4)

Country Link
US (1) US4858215A (de)
EP (2) EP0480485B1 (de)
JP (1) JPS63191329A (de)
DE (2) DE3788321T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8809504D0 (en) * 1988-04-22 1988-05-25 Marconi Gec Ltd Optical devices
JP2644829B2 (ja) * 1988-06-24 1997-08-25 株式会社リコー 光情報記録再生装置
US4972075A (en) * 1988-08-02 1990-11-20 Minolta Camera Kabushiki Kaisha Automatic focusing system with dual diffraction gratings and converging means
US5015835A (en) * 1988-12-23 1991-05-14 Ricoh Company, Ltd. Optical information reading and writing device with diffraction means
US5233444A (en) * 1989-07-25 1993-08-03 Olympus Optical Co., Ltd. Focus error detecting apparatus
US6091067A (en) * 1998-06-02 2000-07-18 Science Applications International Corporation Scanning device using fiber optic bimorph
US6584052B1 (en) 1998-06-02 2003-06-24 Science Applications International Corporation Method and apparatus for controlling the focus of a read/write head for an optical scanner
US6166756A (en) * 1998-06-02 2000-12-26 Science Applications International Corporation Multiple channel data writing device
US6246658B1 (en) 1998-06-02 2001-06-12 Science Applications International Corporation Multiple channel scanning device using optoelectronic switching
US6137105A (en) 1998-06-02 2000-10-24 Science Applications International Corporation Multiple parallel source scanning device
US6341118B1 (en) 1998-06-02 2002-01-22 Science Applications International Corporation Multiple channel scanning device using oversampling and image processing to increase throughput
WO2003009025A1 (en) * 2001-07-16 2003-01-30 Massachusetts Institute Of Technology Grating in a high index contrast strip or channel waveguide and method of forming the same
KR100480786B1 (ko) * 2002-09-02 2005-04-07 삼성전자주식회사 커플러를 가지는 집적형 광 헤드

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737946A (en) * 1984-09-03 1988-04-12 Omron Tateisi Electronics Co. Device for processing optical data with improved optical allignment means
DE3586076D1 (de) * 1984-09-03 1992-06-25 Omron Tateisi Electronics Co Vorrichtung zur verarbeitung optischer daten.
DE3536497A1 (de) * 1984-10-16 1986-04-17 Mitsubishi Denki K.K., Tokio/Tokyo Vorrichtung zur erfassung von fokussierungsfehlern in einer kopfanordnung fuer optische scheiben
US4720824A (en) * 1984-12-28 1988-01-19 Olympus Optical Co., Ltd. Information reading apparatus with a light beam scanning technique
US4779259A (en) * 1985-04-25 1988-10-18 Mitsubishi Denki Kabushiki Kaisha Optical head assembly with efficient light source coupling surface and method of construction

Also Published As

Publication number Publication date
EP0480485B1 (de) 1996-12-04
EP0259860A2 (de) 1988-03-16
EP0480485A3 (en) 1994-06-22
EP0259860B1 (de) 1993-12-01
EP0480485A2 (de) 1992-04-15
DE3751970T2 (de) 1997-04-10
DE3751970D1 (de) 1997-01-16
DE3788321T2 (de) 1994-03-17
JPS63191329A (ja) 1988-08-08
US4858215A (en) 1989-08-15
EP0259860A3 (en) 1990-10-24

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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