DE69731630D1 - System zur einstellung der punktgrösse in einem optischen aufzeichnungssystem - Google Patents

System zur einstellung der punktgrösse in einem optischen aufzeichnungssystem

Info

Publication number
DE69731630D1
DE69731630D1 DE69731630T DE69731630T DE69731630D1 DE 69731630 D1 DE69731630 D1 DE 69731630D1 DE 69731630 T DE69731630 T DE 69731630T DE 69731630 T DE69731630 T DE 69731630T DE 69731630 D1 DE69731630 D1 DE 69731630D1
Authority
DE
Germany
Prior art keywords
optical recording
size setting
point size
recording system
setting system
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 - Lifetime
Application number
DE69731630T
Other languages
English (en)
Other versions
DE69731630T2 (de
Inventor
Clayton Summers
Alan Hamersley
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.)
Discovision Associates
Original Assignee
Discovision Associates
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 Discovision Associates filed Critical Discovision Associates
Publication of DE69731630D1 publication Critical patent/DE69731630D1/de
Application granted granted Critical
Publication of DE69731630T2 publication Critical patent/DE69731630T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • 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
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Processing (AREA)
  • Optical Head (AREA)
  • Microscoopes, Condenser (AREA)
DE69731630T 1996-05-31 1997-05-30 System zur einstellung der punktgrösse in einem optischen aufzeichnungssystem Expired - Lifetime DE69731630T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US65777696A 1996-05-31 1996-05-31
US657776 1996-05-31
PCT/US1997/009143 WO1997045835A1 (en) 1996-05-31 1997-05-30 System for adjusting the spot size in an optical recording system

Publications (2)

Publication Number Publication Date
DE69731630D1 true DE69731630D1 (de) 2004-12-23
DE69731630T2 DE69731630T2 (de) 2005-12-01

Family

ID=24638620

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69731630T Expired - Lifetime DE69731630T2 (de) 1996-05-31 1997-05-30 System zur einstellung der punktgrösse in einem optischen aufzeichnungssystem

Country Status (6)

Country Link
US (1) US5889750A (de)
EP (1) EP0902945B1 (de)
JP (1) JP4175580B2 (de)
AU (1) AU3147897A (de)
DE (1) DE69731630T2 (de)
WO (1) WO1997045835A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6455838B2 (en) 1998-10-06 2002-09-24 The Regents Of The University Of California High sensitivity deflection sensing device
JP2002237076A (ja) * 2001-02-06 2002-08-23 Pioneer Electronic Corp 収差補正装置
GB0127573D0 (en) * 2001-11-17 2002-01-09 Corning Inc Semiconductor optical devices and methods of making them
US7129503B2 (en) 2002-10-09 2006-10-31 Hewlett-Packard Development Company, L.P. Determining emitter beam size for data storage medium
JP4843344B2 (ja) * 2005-03-18 2011-12-21 株式会社リコー 照明装置及び画像読取装置
EP2790570B1 (de) 2011-12-05 2019-09-04 Bioptigen, Inc. Optisches abbildungssystem mit eingangsstrahlformkontrolle und weglängenkontrolle
US8777412B2 (en) 2012-04-05 2014-07-15 Bioptigen, Inc. Surgical microscopes using optical coherence tomography and related methods
JP6373366B2 (ja) 2013-06-04 2018-08-15 バイオプティジェン, インコーポレイテッドBioptigen, Inc. 走査ビーム型システムの作動方法および光走査ビーム型システム
US10456030B2 (en) 2013-07-29 2019-10-29 Bioptigen, Inc. Procedural optical coherence tomography (OCT) for surgery and related methods
EP3039474A1 (de) 2013-08-28 2016-07-06 Bioptigen, Inc. Informationsanzeigen für in eine optische kohärenztomografie integrierte operationsmikroskope
IL233692A (en) * 2014-07-17 2017-04-30 Elbit Systems Electro-Optics Elop Ltd A system and method for analyzing the quality of radiation stain criteria
CN108732711B (zh) * 2018-05-25 2021-11-30 歌尔光学科技有限公司 光路调节方法和光路调节装置
CN108732712B (zh) * 2018-05-25 2020-09-15 歌尔股份有限公司 光路调节方法和光路调节装置
JP2021089383A (ja) * 2019-12-05 2021-06-10 株式会社ディスコ レーザービーム調整機構およびレーザー加工装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272651A (en) * 1978-04-28 1981-06-09 Matsushita Electric Industrial Co., Ltd. Optical system having diode laser light source
US4381557A (en) * 1980-12-19 1983-04-26 Rca Corporation Optical focus sensor
JPS60124939A (ja) * 1983-12-12 1985-07-04 Asahi Optical Co Ltd レ−ザ露光装置
DE3445342A1 (de) * 1983-12-12 1985-06-20 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Laserstrahlbelichtungssystem
JPS63100620A (ja) * 1986-06-20 1988-05-02 Sanyo Electric Co Ltd 光学式ピツクアツプ装置
US4998234A (en) * 1987-03-31 1991-03-05 Rees Theodore D Logarithmic servo error detection for optical disk drive
JPH01105338A (ja) * 1987-07-14 1989-04-21 Mitsubishi Electric Corp 光記録再生装置
GB2209089B (en) * 1987-08-26 1991-07-03 Sony Corp Optical recording and/or reproducing apparatus.
US5101392A (en) * 1988-11-21 1992-03-31 Kabushiki Kaisha Toshiba Information recording apparatus
NL8803012A (nl) * 1988-12-08 1990-07-02 Philips Nv Optische aftastinrichting voorzien van een focusseerregelsysteem alsmede een geintegreerde schakeling voor toepassing in het focusseerregelsysteem.
US5172369A (en) * 1990-03-02 1992-12-15 Pioneer Electronic Corporation Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof
US5164932A (en) * 1990-09-28 1992-11-17 International Business Machines Corporation Acquiring a best focus using a focus signal offset
DE4135011C2 (de) * 1990-10-23 1996-06-05 Asahi Optical Co Ltd Bildplattengerät
JP2820808B2 (ja) * 1991-03-29 1998-11-05 コニカ株式会社 光ディスク装置のフォーカス制御機構
US5233585A (en) * 1991-09-11 1993-08-03 International Business Machines Corporation Acquiring focus in an optical disk system using a time and shape modified focus error signal
US5359588A (en) * 1992-02-12 1994-10-25 Mitsubishi Denki Kabushiki Kaisha Optical recording/reproducing apparatus
JPH05242521A (ja) * 1992-02-27 1993-09-21 Pioneer Electron Corp 光ディスクプレーヤ
JP2720749B2 (ja) * 1993-03-11 1998-03-04 松下電器産業株式会社 光スポット歪測定調整装置
DE4308531A1 (de) * 1993-03-17 1994-09-22 Thomson Brandt Gmbh Kompatibles Aufzeichnungs- und/oder Wiedergabegerät
US5367513A (en) * 1993-11-05 1994-11-22 International Business Machines Corporation Focus and tracking servo decoupling system
US5425013A (en) * 1993-11-12 1995-06-13 International Business Machines Corporation Relative position sensing calibration for optical storage device

Also Published As

Publication number Publication date
WO1997045835A1 (en) 1997-12-04
JP4175580B2 (ja) 2008-11-05
JP2000511325A (ja) 2000-08-29
EP0902945B1 (de) 2004-11-17
AU3147897A (en) 1998-01-05
EP0902945A1 (de) 1999-03-24
US5889750A (en) 1999-03-30
DE69731630T2 (de) 2005-12-01
EP0902945A4 (de) 1999-09-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition