DE69128662D1 - Optischer Wiedergabekopf - Google Patents

Optischer Wiedergabekopf

Info

Publication number
DE69128662D1
DE69128662D1 DE69128662T DE69128662T DE69128662D1 DE 69128662 D1 DE69128662 D1 DE 69128662D1 DE 69128662 T DE69128662 T DE 69128662T DE 69128662 T DE69128662 T DE 69128662T DE 69128662 D1 DE69128662 D1 DE 69128662D1
Authority
DE
Germany
Prior art keywords
playback head
optical playback
optical
head
playback
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
DE69128662T
Other languages
English (en)
Other versions
DE69128662T2 (de
Inventor
Shinichi Kadowaki
Yoshiaki Komma
Seiji Nishino
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69128662D1 publication Critical patent/DE69128662D1/de
Publication of DE69128662T2 publication Critical patent/DE69128662T2/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
DE69128662T 1990-06-26 1991-03-20 Optischer Wiedergabekopf Expired - Fee Related DE69128662T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2167673A JPH0460933A (ja) 1990-06-26 1990-06-26 光ピックアップヘッド装置

Publications (2)

Publication Number Publication Date
DE69128662D1 true DE69128662D1 (de) 1998-02-19
DE69128662T2 DE69128662T2 (de) 1998-06-04

Family

ID=15854099

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69128662T Expired - Fee Related DE69128662T2 (de) 1990-06-26 1991-03-20 Optischer Wiedergabekopf

Country Status (4)

Country Link
US (1) US5283771A (de)
EP (1) EP0463295B1 (de)
JP (1) JPH0460933A (de)
DE (1) DE69128662T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016469A1 (en) * 1992-02-07 1993-08-19 Sony Corporation Phase varying device, and optical pickup apparatus using the same for magneto-optical storage
JP2807589B2 (ja) * 1992-02-13 1998-10-08 シャープ株式会社 光源ユニット及び該光源ユニットを使用した光学ヘッド
JPH05290403A (ja) * 1992-04-08 1993-11-05 Matsushita Electric Ind Co Ltd 光ピックアップヘッド装置
EP0592766B1 (de) * 1992-06-19 1998-09-16 Sony Corporation Verfahren zur Einstellung der optischen Achse eines optischen Systems
DE4404635C2 (de) 1993-02-17 1998-06-18 Hitachi Ltd Schwimmender optischer Abtastkopf, der integral mit einer Lichtquelle und einem Photodetektor ausgebildet ist, und optisches Plattengerät mit einem solchen
JPH06302003A (ja) * 1993-04-12 1994-10-28 Rohm Co Ltd 光ピックアップ
JP3413503B2 (ja) * 1993-10-08 2003-06-03 ソニー・プレシジョン・テクノロジー株式会社 変位検出装置
JPH07176070A (ja) * 1993-12-20 1995-07-14 Matsushita Electric Ind Co Ltd 浮上式光ヘッド及び光記録再生装置
JPH07182687A (ja) * 1993-12-24 1995-07-21 Sharp Corp 光ピックアップ
US5598394A (en) * 1994-05-19 1997-01-28 Sanyo Electric Co., Ltd. Optical pick-up
US5606537A (en) * 1994-06-24 1997-02-25 Sony Corporation Method of adjusting optics of optical pickup using error negating signal processing technique
JP3050752B2 (ja) * 1994-07-21 2000-06-12 ティアック株式会社 光ピックアップ装置
JPH0845102A (ja) * 1994-07-28 1996-02-16 Olympus Optical Co Ltd 光学ヘッド
CN1163430C (zh) * 1997-12-24 2004-08-25 日本板硝子株式会社 玻璃板用缓冲衬垫及玻璃层压体
JP2000011422A (ja) * 1998-04-24 2000-01-14 Sony Corp 集積化受発光装置
WO2020194501A1 (ja) * 2019-03-26 2020-10-01 三菱電機株式会社 半導体レーザ光源装置
US11267446B2 (en) * 2019-11-04 2022-03-08 Richard W. Job Trailer braking system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427634A (en) * 1965-03-03 1969-02-11 Conductron Corp Synchronous optical interrogation system
JPH0782655B2 (ja) * 1983-04-28 1995-09-06 オリンパス光学工業株式会社 光ヘッド
JPS60143453A (ja) * 1983-12-28 1985-07-29 Olympus Optical Co Ltd 光学式情報記録再生用ピツクアツプ装置
NL8502835A (nl) * 1985-10-17 1987-05-18 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
US4757197A (en) * 1986-05-01 1988-07-12 Lee Wai Hon Semiconductor laser and detector device
US4789977A (en) * 1986-11-06 1988-12-06 Laser Magnetic Storage International Company Optical data recording device
US4796950A (en) * 1987-02-09 1989-01-10 Haworth, Inc. Tilt mechanism, particularly for knee-tilt chair
US4784447A (en) * 1987-03-13 1988-11-15 International Business Machines Corporation Holographic objective mirror for optical storage
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
NL8800133A (nl) * 1988-01-21 1989-08-16 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
JPH01273238A (ja) * 1988-04-25 1989-11-01 Sony Corp 光学ヘッド装置
US5082339A (en) * 1988-07-11 1992-01-21 Telefunken Electronic Gmbh Optical read-write head with diffraction grating structure
NL8802988A (nl) * 1988-12-05 1990-07-02 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.

Also Published As

Publication number Publication date
EP0463295B1 (de) 1998-01-14
JPH0460933A (ja) 1992-02-26
DE69128662T2 (de) 1998-06-04
EP0463295A2 (de) 1992-01-02
US5283771A (en) 1994-02-01
EP0463295A3 (en) 1992-07-08

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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