AU2001274616A1 - Optical element, optical head and optical information processor - Google Patents

Optical element, optical head and optical information processor

Info

Publication number
AU2001274616A1
AU2001274616A1 AU2001274616A AU7461601A AU2001274616A1 AU 2001274616 A1 AU2001274616 A1 AU 2001274616A1 AU 2001274616 A AU2001274616 A AU 2001274616A AU 7461601 A AU7461601 A AU 7461601A AU 2001274616 A1 AU2001274616 A1 AU 2001274616A1
Authority
AU
Australia
Prior art keywords
optical
information processor
head
optical element
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.)
Abandoned
Application number
AU2001274616A
Inventor
Shin-Ichi Kadowaki
Yoshiaki Komma
Sadao Mizuno
Hiroaki Yamamoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of AU2001274616A1 publication Critical patent/AU2001274616A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4238—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in optical recording or readout devices
    • 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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4255—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application for alignment or positioning purposes
    • 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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4261—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element with major polarization dependent properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
    • G02B5/1823—Plural gratings positioned on the same surface, e.g. array of gratings in an overlapping or superposed manner
    • 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
    • G11B7/0901—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 track following only
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • 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
    • G11B7/13—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
    • G11B7/1353—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)
  • Mathematical Physics (AREA)
  • Optical Head (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Recording Or Reproduction (AREA)
AU2001274616A 2000-06-29 2001-06-25 Optical element, optical head and optical information processor Abandoned AU2001274616A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000196398 2000-06-29
JP2000-196398 2000-06-29
PCT/JP2001/005432 WO2002001555A1 (en) 2000-06-29 2001-06-25 Optical element, optical head and optical information processor

Publications (1)

Publication Number Publication Date
AU2001274616A1 true AU2001274616A1 (en) 2002-01-08

Family

ID=18694902

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001274616A Abandoned AU2001274616A1 (en) 2000-06-29 2001-06-25 Optical element, optical head and optical information processor

Country Status (6)

Country Link
US (1) US6927375B2 (en)
EP (1) EP1304687A4 (en)
JP (2) JP4778662B2 (en)
CN (1) CN1265365C (en)
AU (1) AU2001274616A1 (en)
WO (1) WO2002001555A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245407B2 (en) * 2002-06-10 2007-07-17 Matsushita Electric Industrial Co., Ltd. Complex objective lens compatible with information media of different thicknesses
JP2004281026A (en) * 2002-08-23 2004-10-07 Matsushita Electric Ind Co Ltd Optical pickup head device, optical information device, and optical information reproducing method
JP4077452B2 (en) * 2002-10-17 2008-04-16 松下電器産業株式会社 Optical disk device
JP2006527450A (en) * 2003-06-11 2006-11-30 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Apparatus for reading from and writing to optical storage carriers
JP4379209B2 (en) * 2004-06-07 2009-12-09 ソニー株式会社 Optical head device, recording / reproducing device, and tracking error signal generation method
TWI404060B (en) 2004-12-01 2013-08-01 Hoya Corp Optical device for optical disc drive, objective lens, optical disc drive, optical system and design method of optical element.
JP2009540388A (en) 2006-06-15 2009-11-19 テッセラ・ノース・アメリカ・インコーポレイテッド Chromatic aberration type diffractive optical element collector, optical system having the same, and related method
JP2008112512A (en) * 2006-10-31 2008-05-15 Matsushita Electric Ind Co Ltd Optical pickup device
US8050167B2 (en) * 2009-03-04 2011-11-01 Victor Company Of Japan, Limited Optical device
PE20170081A1 (en) * 2014-06-25 2017-03-19 Vision Ease Lp DYE MICRO ENVIRONMENT
CN105158921B (en) * 2015-10-26 2017-08-08 山东师范大学 It is a kind of based on complementary random sampling without Lenses Diffractive imaging method

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0738260B2 (en) * 1987-04-01 1995-04-26 日本電気株式会社 Magneto-optical head unit
JP2618957B2 (en) * 1987-12-24 1997-06-11 株式会社クラレ Polarizing optical element
JP2586560B2 (en) * 1988-03-31 1997-03-05 松下電器産業株式会社 Hologram head
US5122903A (en) * 1989-03-15 1992-06-16 Omron Corporation Optical device and optical pickup device using the same
JP2687606B2 (en) * 1989-07-19 1997-12-08 松下電器産業株式会社 Optical pickup
JP2683293B2 (en) * 1990-06-19 1997-11-26 松下電器産業株式会社 Optical head device
US5130857A (en) * 1991-06-26 1992-07-14 Eastman Kodak Company Method of making an optical device
JP2993273B2 (en) * 1992-05-12 1999-12-20 日本電気株式会社 Magneto-optical head device
JP2532818B2 (en) * 1993-02-01 1996-09-11 松下電器産業株式会社 Objective lens and optical head device
JPH07130022A (en) * 1993-11-08 1995-05-19 Matsushita Electric Ind Co Ltd Optical head device and optical element
JPH08278477A (en) * 1994-12-27 1996-10-22 Seiko Epson Corp Diffraction element, optical head and optical recording and reproducing device
JPH08221789A (en) * 1995-02-14 1996-08-30 Matsushita Electric Ind Co Ltd Optical information processor
US5754512A (en) * 1995-05-30 1998-05-19 Matsushita Electric Industrial Co., Ltd. Correction elements to lower light intensity around an optical axis of an optical head with a plurality of focal points
JPH08329512A (en) 1995-06-01 1996-12-13 Asahi Glass Co Ltd Optical head device
JPH08329152A (en) * 1995-06-01 1996-12-13 Hitachi Ltd Method for managing system development system
JPH097212A (en) 1995-06-15 1997-01-10 Asahi Glass Co Ltd Optical head device
JPH097217A (en) * 1995-06-19 1997-01-10 Sony Corp Optical pickup and optical element
US5737296A (en) * 1996-01-23 1998-04-07 Matsushita Electric Industrial Co., Ltd. Focus and tracking error detection by using plus and minus first order diffracted light
JP3541575B2 (en) * 1996-08-28 2004-07-14 旭硝子株式会社 Optical head device and composite anisotropic diffraction element used therefor
JP3524287B2 (en) * 1996-09-13 2004-05-10 パイオニア株式会社 Optical pickup
JP4725756B2 (en) * 1998-05-14 2011-07-13 前田 資郎 Directional diffraction grating
JP4345256B2 (en) * 2001-02-14 2009-10-14 旭硝子株式会社 Wavelength selective diffraction element and optical head device

Also Published As

Publication number Publication date
JP2011198463A (en) 2011-10-06
JP5086464B2 (en) 2012-11-28
CN1265365C (en) 2006-07-19
EP1304687A1 (en) 2003-04-23
EP1304687A4 (en) 2007-07-11
CN1449562A (en) 2003-10-15
WO2002001555A1 (en) 2002-01-03
JP4778662B2 (en) 2011-09-21
US20030098405A1 (en) 2003-05-29
US6927375B2 (en) 2005-08-09

Similar Documents

Publication Publication Date Title
AU2001255745A1 (en) Information retrieval
AU2001242968A1 (en) Position information
AU2001229371A1 (en) Information server
AU2002310190A1 (en) Information retrieval center
AU3410101A (en) Information gathering system
HK1049543A1 (en) Optical recording medium and recording/reproducingmethod thereof.
AUPQ498500A0 (en) Information system
AU2001245708A1 (en) Data rate limiting
AU2002254424A1 (en) All optical data selection element
PL361861A1 (en) Optical information medium and its use
AU2002329148A1 (en) Technology independent information management
AU2001235871A1 (en) Organising information
AU2001222135A1 (en) Information management technique
AU2001274616A1 (en) Optical element, optical head and optical information processor
AU3223501A (en) Laser drive device, optical head, and optical information processor
EP1304691A3 (en) Optical information medium
HK1046327A1 (en) Optical head and optical pickup.
AU2001263189A1 (en) Optical reader and use
AU2001239554A1 (en) Information providing system
AU2002360058A1 (en) Record medium with different latencies
ZA200206471B (en) Optical information medium and its use.
AU2002343961A1 (en) Optical information reproducing method, optical head device, and optical information processor
AU2001288044A1 (en) Optical disk
AU2001266343A1 (en) Sense-of-value information providing system
AU2001256991A1 (en) Optical information medium