GB2229292B - Objective lens system of optical information recording/reproducing apparatus - Google Patents

Objective lens system of optical information recording/reproducing apparatus

Info

Publication number
GB2229292B
GB2229292B GB9004306A GB9004306A GB2229292B GB 2229292 B GB2229292 B GB 2229292B GB 9004306 A GB9004306 A GB 9004306A GB 9004306 A GB9004306 A GB 9004306A GB 2229292 B GB2229292 B GB 2229292B
Authority
GB
United Kingdom
Prior art keywords
objective lens
information recording
reproducing apparatus
lens system
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
GB9004306A
Other languages
English (en)
Other versions
GB9004306D0 (en
GB2229292A (en
Inventor
Makoto Iwaki
Koichi Maruyama
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of GB9004306D0 publication Critical patent/GB9004306D0/en
Publication of GB2229292A publication Critical patent/GB2229292A/en
Application granted granted Critical
Publication of GB2229292B publication Critical patent/GB2229292B/en
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
    • G11B7/1372—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, 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
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)
GB9004306A 1989-02-28 1990-02-27 Objective lens system of optical information recording/reproducing apparatus Expired - Fee Related GB2229292B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4759089 1989-02-28
JP4758989 1989-02-28

Publications (3)

Publication Number Publication Date
GB9004306D0 GB9004306D0 (en) 1990-04-25
GB2229292A GB2229292A (en) 1990-09-19
GB2229292B true GB2229292B (en) 1993-02-10

Family

ID=26387763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9004306A Expired - Fee Related GB2229292B (en) 1989-02-28 1990-02-27 Objective lens system of optical information recording/reproducing apparatus

Country Status (4)

Country Link
JP (1) JP2902435B2 (fr)
DE (1) DE4006275C2 (fr)
FR (1) FR2643727B1 (fr)
GB (1) GB2229292B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5491678A (en) * 1990-05-25 1996-02-13 Hitachi, Ltd. Method and apparatus for recording/reproducing information data in a two-dimensional format
JP3507956B2 (ja) * 1993-10-13 2004-03-15 株式会社日立製作所 光ディスク
US5835469A (en) * 1990-05-25 1998-11-10 Hitachi, Ltd. High-density information recording/reproducing method
US5629799A (en) * 1992-07-16 1997-05-13 Asahi Kogaku Kogyo Kabushiki Kaisha Chromatic aberration correcting element and its application
EP0790606B1 (fr) * 1992-08-07 2001-10-24 Matsushita Electric Industrial Co., Ltd. Appareil de stockage optique
CN1124595C (zh) * 1994-03-25 2003-10-15 株式会社日立制作所 高密度信息记录再生方法
DE19534638A1 (de) * 1994-09-19 1996-03-21 Rodenstock Optik G Optisches System mit drei Linsen
KR100765736B1 (ko) * 2000-09-21 2007-10-15 삼성전자주식회사 색수차 보정렌즈를 구비한 광픽업장치
EP1386315B1 (fr) * 2001-04-25 2006-08-16 Koninklijke Philips Electronics N.V. Dispositif de balayage contenant un systeme objectif a ouverture numerique (on) large partiellement plastique
JP2013174905A (ja) * 2013-04-23 2013-09-05 Olympus Medical Systems Corp 光源光学系
CN111853699B (zh) * 2020-08-28 2021-02-12 广东烨嘉光电科技股份有限公司 一种大孔径的三片式透镜光学镜头
CN115128008B (zh) * 2022-08-30 2022-12-02 苏州高视半导体技术有限公司 半导体显微检测的筒镜镜组及半导体显微检测***

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6310118A (ja) * 1986-07-01 1988-01-16 Asahi Optical Co Ltd 光デイスク用対物レンズ
US4743093A (en) * 1985-09-16 1988-05-10 Eastman Kodak Company Optical disc player lens
US4753524A (en) * 1985-05-31 1988-06-28 Asahi Kogaku Kogyo Kabushiki Kaisha Lens for use with an optical disk
US4765723A (en) * 1985-11-05 1988-08-23 Minolta Camera Kabushiki Kaisha Objective lens system for optical reading device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923313A (ja) * 1982-07-29 1984-02-06 Minolta Camera Co Ltd 大口径集光レンズ
JPH0625823B2 (ja) * 1985-05-14 1994-04-06 株式会社三協精機製作所 光デイスク用対物レンズ
JPH06100720B2 (ja) * 1986-03-03 1994-12-12 松下電器産業株式会社 光デイスク用対物レンズ
JPH087329B2 (ja) * 1986-05-19 1996-01-29 コニカ株式会社 光情報の記録再生用光学系
JPH01287519A (ja) * 1988-05-13 1989-11-20 Matsushita Electric Ind Co Ltd 光ディスク用コリメートレンズ
US5298046A (en) * 1993-01-06 1994-03-29 Minnesota Mining And Manufacturing Company Diesel particulate filter element and filter
JPH06310118A (ja) * 1993-04-28 1994-11-04 Matsushita Electric Ind Co Ltd パック構成電池

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753524A (en) * 1985-05-31 1988-06-28 Asahi Kogaku Kogyo Kabushiki Kaisha Lens for use with an optical disk
US4743093A (en) * 1985-09-16 1988-05-10 Eastman Kodak Company Optical disc player lens
US4765723A (en) * 1985-11-05 1988-08-23 Minolta Camera Kabushiki Kaisha Objective lens system for optical reading device
JPS6310118A (ja) * 1986-07-01 1988-01-16 Asahi Optical Co Ltd 光デイスク用対物レンズ

Also Published As

Publication number Publication date
DE4006275A1 (de) 1990-09-13
FR2643727A1 (fr) 1990-08-31
GB9004306D0 (en) 1990-04-25
JP2902435B2 (ja) 1999-06-07
GB2229292A (en) 1990-09-19
FR2643727B1 (fr) 1994-05-06
DE4006275C2 (de) 1995-04-27
JPH03155515A (ja) 1991-07-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee