FR2744811B1 - Lentille d'objectif, tete de lecture optique comportant celle-ci et procede de fabrication de celle-ci - Google Patents

Lentille d'objectif, tete de lecture optique comportant celle-ci et procede de fabrication de celle-ci

Info

Publication number
FR2744811B1
FR2744811B1 FR9701675A FR9701675A FR2744811B1 FR 2744811 B1 FR2744811 B1 FR 2744811B1 FR 9701675 A FR9701675 A FR 9701675A FR 9701675 A FR9701675 A FR 9701675A FR 2744811 B1 FR2744811 B1 FR 2744811B1
Authority
FR
France
Prior art keywords
manufacturing
same
objective lens
reading head
optical reading
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
FR9701675A
Other languages
English (en)
Other versions
FR2744811A1 (fr
Inventor
Chul Woo Lee
Jang Hoon Yoo
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of FR2744811A1 publication Critical patent/FR2744811A1/fr
Application granted granted Critical
Publication of FR2744811B1 publication Critical patent/FR2744811B1/fr
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
    • G11B7/135—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
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0945—Methods for initialising servos, start-up sequences
    • 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
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0909—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Lenses (AREA)
FR9701675A 1996-02-14 1997-02-13 Lentille d'objectif, tete de lecture optique comportant celle-ci et procede de fabrication de celle-ci Expired - Lifetime FR2744811B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960003604A KR100230253B1 (ko) 1996-02-14 1996-02-14 대물렌즈 장치 및 이의 제작방법 및 이를 적용한 광픽업장치

Publications (2)

Publication Number Publication Date
FR2744811A1 FR2744811A1 (fr) 1997-08-14
FR2744811B1 true FR2744811B1 (fr) 2000-07-28

Family

ID=19451250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9701675A Expired - Lifetime FR2744811B1 (fr) 1996-02-14 1997-02-13 Lentille d'objectif, tete de lecture optique comportant celle-ci et procede de fabrication de celle-ci

Country Status (8)

Country Link
US (1) US5903536A (fr)
JP (1) JP3078237B2 (fr)
KR (1) KR100230253B1 (fr)
DE (1) DE19705750C2 (fr)
FR (1) FR2744811B1 (fr)
GB (1) GB2310310B (fr)
IT (1) IT1290303B1 (fr)
NL (1) NL1005271C2 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6259668B1 (en) 1996-02-14 2001-07-10 Samsung Electronics Co., Ltd. Recording/reproducing apparatus having an optical pickup device to read from and record information to disks of different thicknesses
EP0838812B1 (fr) * 1996-10-23 2003-04-09 Konica Corporation Procédé d'enregistrement et de reproduction d'un disque optique, lentille d'objectif et méthode de réalisation de cette lentille
DE69840116D1 (de) * 1997-03-13 2008-11-27 Hitachi Maxell Optische Linse und optischer Abtastkopf
KR100514323B1 (ko) 1997-12-05 2005-12-08 삼성전자주식회사 복수의광디스크를호환하는대물렌즈를구비한광픽업
KR100354534B1 (ko) 1998-03-17 2002-12-11 삼성전자 주식회사 협트랙광디스크를위한광픽업
KR20000047312A (ko) * 1998-12-31 2000-07-25 구자홍 광 디스크의 재생배속 가변 조정장치 및 조정방법
DE60018735T2 (de) * 1999-01-22 2006-01-26 Konica Minolta Opto, Inc., Hachioji Optische Abtastvorrichtung, Aufzeichnungs- /-Wiedergabegerät mit dieser optischen Abtastvorrichtung, optisches Element und Verfahren zur Informationsaufzeichnung /-Wiedergabe
JP2000338395A (ja) * 1999-05-27 2000-12-08 Konica Corp 光ピックアップ装置及び補正レンズ
JP3858523B2 (ja) 1999-07-27 2006-12-13 株式会社日立製作所 対物レンズ
JP2002133694A (ja) * 2000-10-30 2002-05-10 Matsushita Electric Ind Co Ltd 光記録装置、光記録方法、媒体、および情報集合体
WO2002039440A1 (fr) * 2000-11-09 2002-05-16 Koninklijke Philips Electronics N.V. Tete optique de lecture de support d"enregistrement
US6977781B2 (en) * 2002-09-03 2005-12-20 Pentax Corporation Scanning optical system
US7042608B2 (en) * 2002-09-18 2006-05-09 Pentax Corporation Scanning optical system
US7019768B2 (en) * 2002-11-28 2006-03-28 Pentax Corporation Scanning optical system
JP4234635B2 (ja) 2004-04-28 2009-03-04 株式会社東芝 電子機器
KR100712895B1 (ko) 2005-09-21 2007-04-30 도시바삼성스토리지테크놀러지코리아 주식회사 광디스크의 구면 수차 보정 방법 및 이에 적합한 장치
JP2009020988A (ja) * 2007-06-15 2009-01-29 Sanyo Electric Co Ltd 光ピックアップ装置
JP5575159B2 (ja) * 2012-01-26 2014-08-20 シャープ株式会社 蛍光情報読み取り装置および蛍光情報読み取り方法
US10585248B2 (en) 2017-02-20 2020-03-10 Us Conec, Ltd. Lensed ferrule with low back reflection
KR20180128203A (ko) 2017-05-23 2018-12-03 현대모비스 주식회사 차량용 조명장치

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220408C2 (de) * 1982-05-29 1985-05-15 Optische Werke G. Rodenstock, 8000 München Abtastobjektiv
NL8304213A (nl) * 1983-12-07 1985-07-01 Philips Nv Enkelvoudige lens met een asferisch oppervlak.
JPS60145919A (ja) * 1983-12-29 1985-08-01 Ohara Inc 高精度ガラス成形品のプレス成形方法
JPS6273429A (ja) * 1985-09-26 1987-04-04 Toshiba Corp 光学式ピツクアツプの位置検出装置
WO1992010769A1 (fr) * 1990-12-14 1992-06-25 Eastman Kodak Company Lentilles a gradient d'indice presentant au moins une surface aspherique
TW218427B (fr) * 1991-06-04 1994-01-01 Ibm
US5281797A (en) * 1991-12-26 1994-01-25 Hitachi, Ltd. Short wavelength optical disk head having a changeable aperture
US5349592A (en) * 1992-02-27 1994-09-20 Kabushiki Kaisha Toshiba Super-resolution optical element for use in image forming apparatus
JPH0628704A (ja) * 1992-07-10 1994-02-04 Toshiba Corp 光学ヘッド装置
JP2559006B2 (ja) * 1993-01-13 1996-11-27 松下電器産業株式会社 光ヘッド
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
JP3435249B2 (ja) * 1994-03-11 2003-08-11 株式会社東芝 光学ヘッド装置およびレンズ
HU224675B1 (hu) * 1995-08-30 2005-12-28 Samsung Electronics Co. Ltd. Memória diszk letapogató optikai eszköz
KR100200873B1 (ko) * 1996-01-11 1999-06-15 윤종용 광 픽업 장치

Also Published As

Publication number Publication date
NL1005271A1 (nl) 1997-08-15
KR100230253B1 (ko) 1999-11-15
DE19705750A1 (de) 1997-11-27
JPH09237431A (ja) 1997-09-09
NL1005271C2 (nl) 1999-11-11
FR2744811A1 (fr) 1997-08-14
GB2310310A (en) 1997-08-20
GB9703063D0 (en) 1997-04-02
KR970063071A (ko) 1997-09-12
JP3078237B2 (ja) 2000-08-21
US5903536A (en) 1999-05-11
ITMI970286A1 (it) 1998-08-12
DE19705750C2 (de) 1999-03-25
IT1290303B1 (it) 1998-10-22
GB2310310B (en) 1998-09-16

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