DE69728313D1 - Multifokale Linse, multifokale optische Abtastvorrichtung und optisches Informationswiedergabegerät - Google Patents

Multifokale Linse, multifokale optische Abtastvorrichtung und optisches Informationswiedergabegerät

Info

Publication number
DE69728313D1
DE69728313D1 DE69728313T DE69728313T DE69728313D1 DE 69728313 D1 DE69728313 D1 DE 69728313D1 DE 69728313 T DE69728313 T DE 69728313T DE 69728313 T DE69728313 T DE 69728313T DE 69728313 D1 DE69728313 D1 DE 69728313D1
Authority
DE
Germany
Prior art keywords
multifocal
information reproducing
optical
scanning device
optical information
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
DE69728313T
Other languages
English (en)
Other versions
DE69728313T2 (de
Inventor
Akihiro Tachibana
Akira Miura
Toshihiko Kurihara
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Application granted granted Critical
Publication of DE69728313D1 publication Critical patent/DE69728313D1/de
Publication of DE69728313T2 publication Critical patent/DE69728313T2/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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • 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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • 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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69728313T 1996-01-31 1997-01-29 Multifokale Linse, multifokale optische Abtastvorrichtung und optisches Informationswiedergabegerät Expired - Fee Related DE69728313T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP01593196A JP3474346B2 (ja) 1996-01-31 1996-01-31 多焦点レンズ、多焦点光ピックアップ及び光学式情報再生装置
JP1593196 1996-01-31

Publications (2)

Publication Number Publication Date
DE69728313D1 true DE69728313D1 (de) 2004-05-06
DE69728313T2 DE69728313T2 (de) 2005-03-03

Family

ID=11902526

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69728313T Expired - Fee Related DE69728313T2 (de) 1996-01-31 1997-01-29 Multifokale Linse, multifokale optische Abtastvorrichtung und optisches Informationswiedergabegerät

Country Status (4)

Country Link
US (1) US5886970A (de)
EP (1) EP0789355B1 (de)
JP (1) JP3474346B2 (de)
DE (1) DE69728313T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10255307A (ja) * 1997-03-13 1998-09-25 Pioneer Electron Corp 多焦点光ビーム生成装置、多焦点ピックアップ及び情報再生装置
DE60034829T2 (de) 1999-01-22 2008-01-31 Konica Minolta Opto, Inc., Hachioji Optische Abtastvorrichtung zur Informationsaufzeichnung und Informationswiedergabe
JP4905748B2 (ja) * 2000-02-24 2012-03-28 コニカミノルタホールディングス株式会社 対物レンズ及び光ピックアップ装置
JP4595184B2 (ja) * 2000-10-02 2010-12-08 コニカミノルタホールディングス株式会社 光ピックアップ装置及び対物レンズ
JP4318916B2 (ja) 2000-11-09 2009-08-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 記録担体を走査する光学ヘッド
KR100896021B1 (ko) * 2001-04-05 2009-05-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학주사장치
JP2004145906A (ja) 2001-10-02 2004-05-20 Matsushita Electric Ind Co Ltd 光ヘッド装置及びそれを用いた光情報装置
DE60217379T2 (de) * 2001-10-16 2007-10-04 Koninklijke Philips Electronics N.V. Optischer abtaster
US7061853B2 (en) * 2001-12-18 2006-06-13 Discovision Associates High-density optical pickup for rotating media
JP2005209295A (ja) * 2004-01-23 2005-08-04 Sankyo Seiki Mfg Co Ltd 光ヘッド装置
KR20070044037A (ko) 2004-07-27 2007-04-26 코닌클리케 필립스 일렉트로닉스 엔.브이. 회절부재
JP4587892B2 (ja) * 2005-07-01 2010-11-24 三洋電機株式会社 レーザー集光装置、光ピックアップ装置、光ディスク記録再生装置
US7978568B2 (en) * 2006-12-08 2011-07-12 Panasonic Corporation Optical head, diffraction device, objective lens, and optical disc apparatus
JP5647547B2 (ja) * 2010-03-19 2014-12-24 Hoya株式会社 光情報記録再生装置用対物光学系、及び光情報記録再生装置
JP5602833B2 (ja) * 2010-03-25 2014-10-08 パナソニック株式会社 対物レンズ、光学ヘッド及び光ディスク装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2532818B2 (ja) * 1993-02-01 1996-09-11 松下電器産業株式会社 対物レンズおよび光ヘッド装置
KR100200837B1 (ko) * 1995-01-24 1999-06-15 윤종용 다층 기록막을 갖는 광디스크를 위한 광픽업
US5526338A (en) * 1995-03-10 1996-06-11 Yeda Research & Development Co. Ltd. Method and apparatus for storage and retrieval with multilayer optical disks

Also Published As

Publication number Publication date
EP0789355B1 (de) 2004-03-31
US5886970A (en) 1999-03-23
EP0789355A1 (de) 1997-08-13
JP3474346B2 (ja) 2003-12-08
DE69728313T2 (de) 2005-03-03
JPH09212894A (ja) 1997-08-15

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee