KR880701438A - 광 기록매체 광학 판독용 장치 - Google Patents

광 기록매체 광학 판독용 장치

Info

Publication number
KR880701438A
KR880701438A KR1019870701164A KR870701164A KR880701438A KR 880701438 A KR880701438 A KR 880701438A KR 1019870701164 A KR1019870701164 A KR 1019870701164A KR 870701164 A KR870701164 A KR 870701164A KR 880701438 A KR880701438 A KR 880701438A
Authority
KR
South Korea
Prior art keywords
optical
reading device
record carrier
polarization
refraction index
Prior art date
Application number
KR1019870701164A
Other languages
English (en)
Other versions
KR100235125B1 (ko
Inventor
레우로 끌로드
무레이 브루노
마냐 앙리뜨
Original Assignee
똥송 그랑 퍼블리끄
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9334165&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR880701438(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 똥송 그랑 퍼블리끄 filed Critical 똥송 그랑 퍼블리끄
Publication of KR880701438A publication Critical patent/KR880701438A/ko
Application granted granted Critical
Publication of KR100235125B1 publication Critical patent/KR100235125B1/ko

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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1833—Diffraction gratings comprising birefringent materials
    • 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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • G11B7/12—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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Communication System (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Laser Beam Printer (AREA)
  • Holo Graphy (AREA)
  • Facsimile Scanning Arrangements (AREA)
KR1019870701164A 1986-04-11 1987-03-31 광기록매체광학판독용장치 KR100235125B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR8605239A FR2597249B1 (fr) 1986-04-11 1986-04-11 Dispositif de lecture optique de support d'enregistrement optique
FR86-05239 1986-04-11
FR87701164 1987-03-18
FRPFR87/00102 1987-03-30
PCT/FR1987/000102 WO1987006386A1 (fr) 1986-04-11 1987-03-31 Dispositif de lecture optique de support d'enregistrement optique

Publications (2)

Publication Number Publication Date
KR880701438A true KR880701438A (ko) 1988-07-27
KR100235125B1 KR100235125B1 (ko) 1999-12-15

Family

ID=9334165

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870701164A KR100235125B1 (ko) 1986-04-11 1987-03-31 광기록매체광학판독용장치

Country Status (11)

Country Link
US (1) US5168485A (ko)
EP (1) EP0241372B1 (ko)
JP (3) JP2589337B2 (ko)
KR (1) KR100235125B1 (ko)
AT (1) ATE66762T1 (ko)
AU (1) AU7167587A (ko)
CA (1) CA1301319C (ko)
DE (1) DE3772426D1 (ko)
ES (1) ES2024528B3 (ko)
FR (1) FR2597249B1 (ko)
WO (1) WO1987006386A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100427828B1 (ko) * 2001-02-26 2004-04-28 알프스 덴키 가부시키가이샤 광학부재 및 이를 사용한 광픽업

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502835A (nl) * 1985-10-17 1987-05-18 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
US4794585A (en) * 1986-05-06 1988-12-27 Lee Wai Hon Optical head having a hologram lens and polarizers for use with magneto-optic medium
EP0348221B1 (en) * 1988-06-23 1994-12-14 Sharp Kabushiki Kaisha An optical pickup apparatus
EP0390445A3 (en) * 1989-03-27 1992-01-22 Matsushita Electric Industrial Co., Ltd. Optical pickup head
US5085496A (en) * 1989-03-31 1992-02-04 Sharp Kabushiki Kaisha Optical element and optical pickup device comprising it
FR2646245B1 (fr) * 1989-04-25 1991-06-14 Thomson Csf Dispositif de lecture optique pour support d'enregistrement optique
US5050153A (en) * 1989-06-06 1991-09-17 Wai-Hon Lee Semiconductor laser optical head assembly
EP0405444B1 (en) * 1989-06-26 1997-09-03 Nec Corporation Optical system
JP2616018B2 (ja) * 1989-06-26 1997-06-04 日本電気株式会社 光ヘッド装置
EP0459790B1 (en) * 1990-05-31 1996-04-17 Mitsubishi Denki Kabushiki Kaisha Optical record and reproduction apparatus
JP2894808B2 (ja) * 1990-07-09 1999-05-24 旭光学工業株式会社 偏光を有する光学系
EP0598592B1 (en) * 1992-11-17 1999-09-01 Seiko Epson Corporation Optical head
JP3362896B2 (ja) * 1993-01-25 2003-01-07 ソニー株式会社 光ピックアップ及び光ディスク装置
US5757754A (en) * 1994-06-30 1998-05-26 Matsushita Electric Industrial Co., Ltd. Holographic optical head
FR2723243B1 (fr) * 1994-07-26 1996-09-06 Thomson Csf Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation
CA2164384C (en) * 1995-03-04 1999-08-17 Jin-Yong Kim Optical pick-up apparatus capable of reading data irrespective of disc type
WO1997013245A1 (en) 1995-10-03 1997-04-10 Asahi Glass Company Ltd. Optical head device and production method thereof
WO1999018459A1 (fr) * 1997-10-02 1999-04-15 Asahi Glass Company Ltd. Tete optique et element de diffraction conçu pour cette tete optique, et procede de fabrication de l'element de diffraction et de la tete optique
FR2786345B1 (fr) 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
US6584059B1 (en) * 1999-02-17 2003-06-24 Matsushita Electric Industrial Co., Ltd. Information recording and reproducing apparatus
US7149173B2 (en) * 2000-10-17 2006-12-12 Thales Medium for recording optically readable data, method for making same and optical system reproducing said data
FR2824905B1 (fr) * 2001-05-15 2003-08-29 Thomson Csf Gyrometre a fibre optique
FR2837972B1 (fr) 2002-04-02 2006-07-21 Thales Sa Procede d'asservissement radial pour un dispositif de reproduction d'informations d'un disque optique et dispositif de reproduction mettant en oeuvre ce procede
JP4106981B2 (ja) * 2002-06-28 2008-06-25 旭硝子株式会社 光減衰器
EP1616326A2 (en) * 2003-04-14 2006-01-18 Koninklijke Philips Electronics N.V. Optical scanning device
US9938844B2 (en) 2011-10-26 2018-04-10 General Electric Company Metallic stator seal
US10161523B2 (en) 2011-12-23 2018-12-25 General Electric Company Enhanced cloth seal
US9551569B2 (en) * 2014-10-13 2017-01-24 Hermes-Epitek Corporation Apparatus and method for curvature and thin film stress measurement
US11269193B2 (en) * 2017-11-27 2022-03-08 Liqxtal Technology Inc. Optical sensing device and structured light projector

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100628A (ko) * 1975-03-03 1976-09-06 Hitachi Ltd
NL7907216A (nl) * 1979-09-28 1981-03-31 Philips Nv Optisch fokusfout-detektiestelsel.
JPS6213Y2 (ko) * 1981-03-20 1987-01-06
JPS58130148A (ja) * 1982-01-28 1983-08-03 三重県 額縁等の立体的装飾成形体用成形材料ならびにそれを用いた成形方法
JPS59119548A (ja) * 1982-12-25 1984-07-10 Pioneer Electronic Corp 光学式ピツクアツプ装置
JP2539350B2 (ja) * 1983-12-16 1996-10-02 株式会社日立製作所 光ヘツド装置
JPH069089B2 (ja) * 1985-04-05 1994-02-02 日本電気株式会社 光ヘツド
JPS61178740A (ja) * 1985-02-05 1986-08-11 Canon Inc 光ヘツド装置
US4733065A (en) * 1984-06-27 1988-03-22 Canon Kabushiki Kaisha Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom
CA1257392A (en) * 1985-03-20 1989-07-11 Masayuki Kato Optical pickup with hologram lenses
JPS6226654A (ja) * 1985-07-26 1987-02-04 Nec Corp 光ヘツド
NL8502835A (nl) * 1985-10-17 1987-05-18 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
JPS62139146A (ja) * 1985-12-12 1987-06-22 Nec Corp 光ヘツド装置
EP0228620B1 (en) * 1985-12-10 1991-06-05 Nec Corporation Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors
JPH0630164B2 (ja) * 1985-12-16 1994-04-20 キヤノン株式会社 光ヘツド装置
NL8601974A (nl) * 1986-08-01 1988-03-01 Philips Nv Inrichting voor het met optische straling aftasten van een stralingsreflekterend informatievlak.
JPH0514334Y2 (ko) * 1986-10-01 1993-04-16
JPH0777038B2 (ja) * 1986-12-25 1995-08-16 ソニー株式会社 光学ピツクアツプ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100427828B1 (ko) * 2001-02-26 2004-04-28 알프스 덴키 가부시키가이샤 광학부재 및 이를 사용한 광픽업

Also Published As

Publication number Publication date
DE3772426D1 (de) 1991-10-02
EP0241372B1 (fr) 1991-08-28
JPH10188336A (ja) 1998-07-21
ES2024528B3 (es) 1992-03-01
AU7167587A (en) 1987-11-09
ATE66762T1 (de) 1991-09-15
FR2597249B1 (fr) 1988-06-17
JPH0922541A (ja) 1997-01-21
EP0241372A1 (fr) 1987-10-14
JP2589337B2 (ja) 1997-03-12
FR2597249A1 (fr) 1987-10-16
JPS63503102A (ja) 1988-11-10
CA1301319C (fr) 1992-05-19
WO1987006386A1 (fr) 1987-10-22
JP2935418B2 (ja) 1999-08-16
US5168485A (en) 1992-12-01
KR100235125B1 (ko) 1999-12-15

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