DE69126496D1 - Optischer Abtaster mit einem holographischen optischen Element - Google Patents

Optischer Abtaster mit einem holographischen optischen Element

Info

Publication number
DE69126496D1
DE69126496D1 DE69126496T DE69126496T DE69126496D1 DE 69126496 D1 DE69126496 D1 DE 69126496D1 DE 69126496 T DE69126496 T DE 69126496T DE 69126496 T DE69126496 T DE 69126496T DE 69126496 D1 DE69126496 D1 DE 69126496D1
Authority
DE
Germany
Prior art keywords
optical
holographic
scanner
optical element
optical scanner
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
DE69126496T
Other languages
English (en)
Other versions
DE69126496T2 (de
Inventor
Toshiya Nagahama
Shigehiro Yamada
Naruichi Yokogawa
Yasushi Seike
Koji Yoshifusa
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 DE69126496D1 publication Critical patent/DE69126496D1/de
Application granted granted Critical
Publication of DE69126496T2 publication Critical patent/DE69126496T2/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
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
DE69126496T 1990-09-27 1991-09-19 Optischer Abtaster mit einem holographischen optischen Element Expired - Fee Related DE69126496T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2262100A JPH04137232A (ja) 1990-09-27 1990-09-27 光ピックアップ装置

Publications (2)

Publication Number Publication Date
DE69126496D1 true DE69126496D1 (de) 1997-07-17
DE69126496T2 DE69126496T2 (de) 1998-01-08

Family

ID=17371038

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69126496T Expired - Fee Related DE69126496T2 (de) 1990-09-27 1991-09-19 Optischer Abtaster mit einem holographischen optischen Element

Country Status (4)

Country Link
US (1) US5272329A (de)
EP (1) EP0478222B1 (de)
JP (1) JPH04137232A (de)
DE (1) DE69126496T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69326213T2 (de) * 1992-11-17 1999-12-30 Seiko Epson Corp., Tokio/Tokyo Optischer Abtastkopf
JPH07176095A (ja) * 1993-06-25 1995-07-14 Nec Corp 光磁気ヘッド装置
DE69621678T2 (de) * 1995-03-14 2002-11-28 Kabushiki Kaisha Toshiba, Kawasaki Lichtdetektor
JPH10172173A (ja) * 1996-12-06 1998-06-26 Samsung Electron Co Ltd 光ピックアップ装置
JPH11213441A (ja) * 1998-01-23 1999-08-06 Rohm Co Ltd 光ピックアップおよびその調整方法
DE602004025417D1 (de) * 2003-10-21 2010-03-25 Koninkl Philips Electronics Nv Optisches plattenlaufwerk
DE102004035494A1 (de) * 2004-07-22 2006-02-09 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zur Prüfung von Wertdokumenten

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125860A (en) * 1975-06-16 1978-11-14 Nippon Telegraph And Telephone Public Corporation Reproducer for an eraseable videodisc
DE3275772D1 (en) * 1981-07-23 1987-04-23 Mnemos Research Nv Optical data storage
JPH0246923B2 (ja) * 1984-10-13 1990-10-17 Sumitomo Beekuraito Kk Hikarifuaibaakonekutaa
EP0258890B1 (de) * 1986-09-02 1993-03-31 Fuji Photo Film Co., Ltd. Optischer Wiedergabekopf
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
US4868803A (en) * 1987-04-20 1989-09-19 Fuji Photo Film Co., Ltd. Magneto-optic pickup head including tracking and focusing error correction
NL8702245A (nl) * 1987-09-21 1989-04-17 Philips Nv Inrichting voor het met optische straling aftasten van een stralingsreflekterend informatievlak.
US4929823A (en) * 1987-10-05 1990-05-29 Matsushita Electric Industrial Co., Ltd. Optical pickup head with holographic servo signal detection using a spot size detection system
JPH01151022A (ja) * 1987-12-09 1989-06-13 Sharp Corp 光ピックアップ装置
JPH01260637A (ja) * 1988-04-12 1989-10-17 Sharp Corp 光ピックアップのトラッキング誤差検出装置
JPH01303639A (ja) * 1988-05-31 1989-12-07 Nec Home Electron Ltd ホログラム光ヘッド
JPH01313987A (ja) * 1988-06-14 1989-12-19 Sharp Corp 集積型レーザーユニット
JPH0224841A (ja) * 1988-07-14 1990-01-26 Toshiba Corp 光情報処理装置
JPH0266727A (ja) * 1988-08-31 1990-03-06 Toshiba Corp 電子機器装置
US5049732A (en) * 1988-10-21 1991-09-17 Sharp Kabushiki Kaisha Optical pickup device with diffraction device
NL8802988A (nl) * 1988-12-05 1990-07-02 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
JPH06103543B2 (ja) * 1988-12-31 1994-12-14 三星電子株式会社 レーザピックアップ
NL8901401A (nl) * 1989-06-02 1991-01-02 Philips Nv Fotogevoelige halfgeleiderinrichting.

Also Published As

Publication number Publication date
JPH04137232A (ja) 1992-05-12
EP0478222A2 (de) 1992-04-01
EP0478222B1 (de) 1997-06-11
US5272329A (en) 1993-12-21
DE69126496T2 (de) 1998-01-08
EP0478222A3 (en) 1992-12-16

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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