DE3887602D1 - Gerät zur Verarbeitung optischer Information. - Google Patents

Gerät zur Verarbeitung optischer Information.

Info

Publication number
DE3887602D1
DE3887602D1 DE88308177T DE3887602T DE3887602D1 DE 3887602 D1 DE3887602 D1 DE 3887602D1 DE 88308177 T DE88308177 T DE 88308177T DE 3887602 T DE3887602 T DE 3887602T DE 3887602 D1 DE3887602 D1 DE 3887602D1
Authority
DE
Germany
Prior art keywords
optical information
processing optical
processing
information
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
DE88308177T
Other languages
English (en)
Other versions
DE3887602T2 (de
Inventor
Osamu Yamamoto
Toshihiko Yoshida
Saburo Yamamoto
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
Priority claimed from JP62222457A external-priority patent/JPH0786981B2/ja
Priority claimed from JP62222458A external-priority patent/JPS6464141A/ja
Application filed by Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE3887602D1 publication Critical patent/DE3887602D1/de
Publication of DE3887602T2 publication Critical patent/DE3887602T2/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
    • G11B7/12—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
DE3887602T 1987-09-04 1988-09-02 Gerät zur Verarbeitung optischer Information. Expired - Fee Related DE3887602T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62222457A JPH0786981B2 (ja) 1987-09-04 1987-09-04 光情報処理装置
JP62222458A JPS6464141A (en) 1987-09-04 1987-09-04 Optical information processor

Publications (2)

Publication Number Publication Date
DE3887602D1 true DE3887602D1 (de) 1994-03-17
DE3887602T2 DE3887602T2 (de) 1994-08-25

Family

ID=26524895

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3887602T Expired - Fee Related DE3887602T2 (de) 1987-09-04 1988-09-02 Gerät zur Verarbeitung optischer Information.

Country Status (3)

Country Link
US (2) US4945525A (de)
EP (1) EP0306342B1 (de)
DE (1) DE3887602T2 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3887602T2 (de) * 1987-09-04 1994-08-25 Sharp Kk Gerät zur Verarbeitung optischer Information.
US5040110A (en) * 1987-10-30 1991-08-13 Matsushita Electric Industrial Co., Ltd. Write once read many optical disc storage system having directory for storing virtual address and corresponding up-to-date sector address
WO1989006424A1 (en) * 1987-12-29 1989-07-13 Matsushita Electric Industrial Co., Ltd. Optical head
JP2723949B2 (ja) * 1988-01-27 1998-03-09 株式会社日立製作所 光情報読取り装置
US5065390A (en) * 1988-04-22 1991-11-12 Sony Corporation Optical playback head
JPH02260205A (ja) * 1989-03-31 1990-10-23 Sharp Corp 光磁気複合ヘッド
JPH02284129A (ja) * 1989-04-26 1990-11-21 Hitachi Ltd 走査形情報検出装置
EP0454854B1 (de) * 1989-10-14 1996-01-03 Copal Company Limited Optische Abtasteinheit mit Fokuseinstellungsanordnung
JPH0834003B2 (ja) * 1990-03-08 1996-03-29 直弘 丹野 光導波路記憶媒体及び光再生装置
US5293291A (en) * 1990-04-09 1994-03-08 Nikon Corporation Optical integrated device for magneto-optical reproducing head
US5180909A (en) * 1990-04-27 1993-01-19 Victor Company Of Japan, Ltd. Optical pickup using diffracted light
US5233582A (en) * 1991-02-19 1993-08-03 Pioneer Electronic Corporation Optical waveguide recording medium playing apparatus
US5258967A (en) * 1992-02-24 1993-11-02 Eastman Kodak Company Method and apparatus for separating a first optical control radiation from a second optical control radiation in a read/write head for use in an optical storage and retrieval system
EP0568753A1 (de) * 1992-05-07 1993-11-10 International Business Machines Corporation Optische Speichereinheit mit hoher Datendichte und Informations-, Schreib- und Leseverfahren
US5258871A (en) * 1992-06-01 1993-11-02 Eastman Kodak Company Dual diffraction grating beam splitter
US5361248A (en) * 1992-06-01 1994-11-01 Eastman Kodak Company Direct overwrite magneto-optical storage medium not requiring an initialization magnet
US5434708A (en) * 1992-09-08 1995-07-18 Eastman Kodak Company Optical reproducing apparatus ultilizing a polarization beam splitter
KR950010270B1 (ko) * 1993-02-03 1995-09-12 주식회사Lg전자 광디스크 픽업장치
US5495466A (en) * 1994-01-10 1996-02-27 Eastman Kodak Company Write verification in an optical recording system by sensing mark formation while writing
JP2716000B2 (ja) * 1995-06-23 1998-02-18 日本電気株式会社 光ヘッド
KR0166232B1 (ko) * 1995-11-27 1999-03-20 배순훈 초소형 광 픽-업장치
KR0166233B1 (ko) * 1995-11-27 1999-03-20 배순훈 초소형 듀얼 포커스 광 픽-업장치
JP3635522B2 (ja) * 1999-01-27 2005-04-06 パイオニア株式会社 光集積装置
JP2004158073A (ja) * 2002-11-05 2004-06-03 Tdk Corp 受光装置、光検出装置、および、光信号再生装置
US7266268B2 (en) * 2003-09-05 2007-09-04 Seagate Technology Llc Diffraction grating
ATE457077T1 (de) * 2003-10-21 2010-02-15 Koninkl Philips Electronics Nv Optisches plattenlaufwerk
US7889993B2 (en) * 2007-08-17 2011-02-15 Avago Technologies Fiber Ip (Singapore) Pte. Ltd Optical transceiver module having a front facet reflector and methods for making and using a front facet reflector
US9580792B2 (en) 2010-06-04 2017-02-28 Advantech Global, Ltd Shadow mask alignment using variable pitch coded apertures
CN106148891A (zh) * 2010-06-04 2016-11-23 阿德文泰克全球有限公司 利用编码孔径进行的阴影掩模的对准
US9122172B2 (en) 2010-06-04 2015-09-01 Advantech Global, Ltd Reflection shadow mask alignment using coded apertures
US9449627B2 (en) * 2014-12-09 2016-09-20 Seagate Technology Llc Angled waveguide

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159630A (ja) * 1984-08-30 1986-03-27 Matsushita Electric Ind Co Ltd 焦点検出装置
DE3546795C2 (de) * 1984-10-01 1993-09-23 Mitsubishi Denki K.K., Tokio/Tokyo, Jp
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
JPS6251045A (ja) * 1985-08-30 1987-03-05 Hitachi Ltd 光学的情報読取装置
JPS62112242A (ja) * 1985-11-11 1987-05-23 Hitachi Ltd マルチ再生光ピツクアツプ
US4823331A (en) * 1986-02-24 1989-04-18 Sony Corporation Focusing detection apparatus
US4885732A (en) * 1986-09-02 1989-12-05 Fuji Photo Film Co., Ltd. Optical pickup apparatus for detecting and correcting focusing and tracking errors in detected recorded signals
JPH0675307B2 (ja) * 1987-01-30 1994-09-21 富士写真フイルム株式会社 光磁気記録媒体用ピツクアツプ
DE3887602T2 (de) * 1987-09-04 1994-08-25 Sharp Kk Gerät zur Verarbeitung optischer Information.

Also Published As

Publication number Publication date
US5119355A (en) 1992-06-02
DE3887602T2 (de) 1994-08-25
EP0306342A2 (de) 1989-03-08
EP0306342B1 (de) 1994-02-02
US4945525A (en) 1990-07-31
EP0306342A3 (en) 1989-12-13

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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