FR2643727B1 - Systeme de lentille d'objectif d'un appareil d'enregistrement/reproduction d'informations optiques - Google Patents

Systeme de lentille d'objectif d'un appareil d'enregistrement/reproduction d'informations optiques

Info

Publication number
FR2643727B1
FR2643727B1 FR9002398A FR9002398A FR2643727B1 FR 2643727 B1 FR2643727 B1 FR 2643727B1 FR 9002398 A FR9002398 A FR 9002398A FR 9002398 A FR9002398 A FR 9002398A FR 2643727 B1 FR2643727 B1 FR 2643727B1
Authority
FR
France
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
FR9002398A
Other languages
English (en)
Other versions
FR2643727A1 (fr
Inventor
Iwaki Makoto
Maruyama Koichi
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 FR2643727A1 publication Critical patent/FR2643727A1/fr
Application granted granted Critical
Publication of FR2643727B1 publication Critical patent/FR2643727B1/fr
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)
FR9002398A 1989-02-28 1990-02-27 Systeme de lentille d'objectif d'un appareil d'enregistrement/reproduction d'informations optiques Expired - Fee Related FR2643727B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
FR2643727A1 FR2643727A1 (fr) 1990-08-31
FR2643727B1 true FR2643727B1 (fr) 1994-05-06

Family

ID=26387763

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9002398A Expired - Fee Related FR2643727B1 (fr) 1989-02-28 1990-02-27 Systeme de lentille d'objectif d'un appareil d'enregistrement/reproduction d'informations optiques

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
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
US5491678A (en) * 1990-05-25 1996-02-13 Hitachi, Ltd. Method and apparatus for recording/reproducing information data in a two-dimensional format
DE4323971C2 (de) * 1992-07-16 2002-11-07 Asahi Optical Co Ltd Schreib-/Lesegerät für eine optische Speicherplatte
DE69330357T2 (de) * 1992-08-07 2001-10-31 Matsushita Electric Ind Co Ltd Optische Speichervorrichtung
KR100317766B1 (ko) * 1994-03-25 2002-04-24 가나이 쓰도무 고밀도정보기록재생방법
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
US7050246B2 (en) * 2001-04-25 2006-05-23 Koninklijke Philips Electronics N.V. Scanning device including a partly plastic high-NA objective system
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***

Family Cites Families (11)

* 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
JPS61275808A (ja) * 1985-05-31 1986-12-05 Asahi Optical Co Ltd 光デイスク用レンズ
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
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
JPS6310118A (ja) * 1986-07-01 1988-01-16 Asahi Optical Co Ltd 光デイスク用対物レンズ
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

Also Published As

Publication number Publication date
JPH03155515A (ja) 1991-07-03
GB2229292A (en) 1990-09-19
JP2902435B2 (ja) 1999-06-07
GB2229292B (en) 1993-02-10
FR2643727A1 (fr) 1990-08-31
DE4006275A1 (de) 1990-09-13
GB9004306D0 (en) 1990-04-25
DE4006275C2 (de) 1995-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse