KR100914813B1 - 광 픽업 장치의 광학계 - Google Patents

광 픽업 장치의 광학계

Info

Publication number
KR100914813B1
KR100914813B1 KR1020020061114A KR20020061114A KR100914813B1 KR 100914813 B1 KR100914813 B1 KR 100914813B1 KR 1020020061114 A KR1020020061114 A KR 1020020061114A KR 20020061114 A KR20020061114 A KR 20020061114A KR 100914813 B1 KR100914813 B1 KR 100914813B1
Authority
KR
South Korea
Prior art keywords
optical
information recording
recording medium
spherical aberration
path difference
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
KR1020020061114A
Other languages
English (en)
Korean (ko)
Other versions
KR20030030888A (ko
Inventor
이께나까기요노
오오따고헤이
아따라시유우이찌
Original Assignee
코니카 미놀타 홀딩스 가부시키가이샤
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 코니카 미놀타 홀딩스 가부시키가이샤 filed Critical 코니카 미놀타 홀딩스 가부시키가이샤
Publication of KR20030030888A publication Critical patent/KR20030030888A/ko
Application granted granted Critical
Publication of KR100914813B1 publication Critical patent/KR100914813B1/ko
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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1367—Stepped phase 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • 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)
  • Lenses (AREA)
  • Optical Head (AREA)
KR1020020061114A 2001-10-11 2002-10-08 광 픽업 장치의 광학계 Expired - Fee Related KR100914813B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP-P-2001-00313866 2001-10-11
JP2001313866A JP3864749B2 (ja) 2001-10-11 2001-10-11 光ピックアップ装置の光学系及び光ピックアップ装置の対物レンズ

Publications (2)

Publication Number Publication Date
KR20030030888A KR20030030888A (ko) 2003-04-18
KR100914813B1 true KR100914813B1 (ko) 2009-09-02

Family

ID=19132272

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020061114A Expired - Fee Related KR100914813B1 (ko) 2001-10-11 2002-10-08 광 픽업 장치의 광학계

Country Status (7)

Country Link
US (2) US7508745B2 (enExample)
EP (1) EP1302938B1 (enExample)
JP (1) JP3864749B2 (enExample)
KR (1) KR100914813B1 (enExample)
CN (1) CN100454407C (enExample)
DE (1) DE60233025D1 (enExample)
TW (1) TW594712B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7411884B2 (en) * 2002-08-21 2008-08-12 Hoya Corporation Optical system with objective lens having diffraction structure
KR101037031B1 (ko) * 2002-09-30 2011-05-25 코니카 미노루따 호르딩구스 가부시끼가이샤 광학 요소, 대물 광학 요소 및 광학 픽업 장치
TWI266898B (en) * 2002-10-31 2006-11-21 Konica Minolta Holdings Inc Objective optical element and optical pickup apparatus
JP3868932B2 (ja) 2003-07-10 2007-01-17 日立マクセル株式会社 レンズ及びそれを用いた光学系、光ヘッド並びに光ディスク装置
JP5152439B2 (ja) * 2010-09-29 2013-02-27 コニカミノルタアドバンストレイヤー株式会社 光ピックアップ装置用の対物レンズ及び光ピックアップ装置
US8819187B1 (en) 2013-10-29 2014-08-26 Limelight Networks, Inc. End-to-end acceleration of dynamic content

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1116194A (ja) * 1997-06-24 1999-01-22 Nec Corp 光ヘッド装置
JP2000260056A (ja) * 1999-01-08 2000-09-22 Asahi Optical Co Ltd 複合対物レンズ，球面収差補正素子及び光情報記録再生装置
JP2001229567A (ja) * 1999-12-10 2001-08-24 Konica Corp 対物レンズ及び光ピックアップ装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6091691A (en) * 1997-02-13 2000-07-18 Samsung Electronics Co., Ltd. Optical pickup having an objective lens compatible with a plurality of optical disk formats
JP3550480B2 (ja) 1997-06-20 2004-08-04 株式会社日立製作所 対物レンズおよびそれを用いた光ヘッド
JPH10334504A (ja) 1997-05-29 1998-12-18 Nec Corp 光ヘッド装置
JPH112759A (ja) 1997-06-13 1999-01-06 Pioneer Electron Corp 対物レンズ
KR100514323B1 (ko) * 1997-12-05 2005-12-08 삼성전자주식회사 복수의광디스크를호환하는대물렌즈를구비한광픽업
US6088322A (en) * 1998-05-07 2000-07-11 Broome; Barry G. Single objective lens for use with CD or DVD optical disks
TW432225B (en) * 1998-06-03 2001-05-01 Konishiroku Photo Ind Optical pickup apparatus
CN1214376C (zh) * 1998-06-26 2005-08-10 宾得株式会社 光学拾像装置的物镜
US6760295B1 (en) * 1999-01-08 2004-07-06 Pentax Corporation Optical pick-up
EP1182653B1 (en) 1999-01-22 2005-03-16 Konica Minolta Opto, Inc. Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method
JP4434369B2 (ja) 1999-08-11 2010-03-17 旭硝子株式会社 対物レンズ
EP1168317A4 (en) * 1999-12-10 2006-06-21 Konica Minolta Opto Inc LENS LENS AND OPTICAL SENSING DEVICE
KR100775943B1 (ko) * 1999-12-24 2007-11-13 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학소자 및 그것을 구비한 광학헤드
US6594222B2 (en) * 1999-12-28 2003-07-15 Pentax Corporation Objective lens for optical pick-up
US6545807B2 (en) * 1999-12-28 2003-04-08 Pentax Corporation Refractive-diffractive hybrid lens
JP4465838B2 (ja) 2000-09-01 2010-05-26 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
CN1206642C (zh) 2000-11-14 2005-06-15 皇家菲利浦电子有限公司 光学扫描装置
JP2002324333A (ja) * 2001-04-26 2002-11-08 Konica Corp 光ピックアップ装置及びその対物レンズ
TW535009B (en) * 2001-06-13 2003-06-01 Pentax Corp Diffraction optical element
TW535001B (en) * 2001-06-13 2003-06-01 Pentax Corp Objective lens for optical pick-up
JP2003156682A (ja) * 2001-11-21 2003-05-30 Konica Corp 光ピックアップ装置の対物レンズ及び光ピックアップ装置
TWI252935B (en) * 2001-12-21 2006-04-11 Konica Corp Optical pickup apparatus and optical element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1116194A (ja) * 1997-06-24 1999-01-22 Nec Corp 光ヘッド装置
JP2000260056A (ja) * 1999-01-08 2000-09-22 Asahi Optical Co Ltd 複合対物レンズ，球面収差補正素子及び光情報記録再生装置
JP2001229567A (ja) * 1999-12-10 2001-08-24 Konica Corp 対物レンズ及び光ピックアップ装置

Also Published As

Publication number Publication date
DE60233025D1 (de) 2009-09-03
EP1302938A2 (en) 2003-04-16
US20090147657A1 (en) 2009-06-11
KR20030030888A (ko) 2003-04-18
EP1302938A3 (en) 2003-09-17
US7508745B2 (en) 2009-03-24
US20030076595A1 (en) 2003-04-24
EP1302938B1 (en) 2009-07-22
CN100454407C (zh) 2009-01-21
CN1424719A (zh) 2003-06-18
JP2003123303A (ja) 2003-04-25
US7969854B2 (en) 2011-06-28
JP3864749B2 (ja) 2007-01-10
TW594712B (en) 2004-06-21

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