AU4150696A - Two-dimensional array of modulatable light sources - Google Patents

Two-dimensional array of modulatable light sources

Info

Publication number
AU4150696A
AU4150696A AU41506/96A AU4150696A AU4150696A AU 4150696 A AU4150696 A AU 4150696A AU 41506/96 A AU41506/96 A AU 41506/96A AU 4150696 A AU4150696 A AU 4150696A AU 4150696 A AU4150696 A AU 4150696A
Authority
AU
Australia
Prior art keywords
light sources
dimensional array
modulatable light
modulatable
array
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
AU41506/96A
Inventor
William S Oakley
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.)
Lots Tech Inc
Original Assignee
LOTS Technology
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 LOTS Technology filed Critical LOTS Technology
Publication of AU4150696A publication Critical patent/AU4150696A/en
Abandoned 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/108—Beam splitting or combining systems for sampling a portion of a beam or combining a small beam in a larger one, e.g. wherein the area ratio or power ratio of the divided beams significantly differs from unity, without spectral selectivity
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1086—Beam splitting or combining systems operating by diffraction only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/055—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect the active material being a ceramic
    • G02F1/0551—Constructional details
    • 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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Holo Graphy (AREA)
AU41506/96A 1995-10-23 1995-10-23 Two-dimensional array of modulatable light sources Abandoned AU4150696A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1995/014533 WO1997015921A1 (en) 1995-10-23 1995-10-23 Two-dimensional array of modulatable light sources

Publications (1)

Publication Number Publication Date
AU4150696A true AU4150696A (en) 1997-05-15

Family

ID=22250098

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41506/96A Abandoned AU4150696A (en) 1995-10-23 1995-10-23 Two-dimensional array of modulatable light sources

Country Status (4)

Country Link
EP (1) EP0871953A4 (en)
JP (1) JPH11513817A (en)
AU (1) AU4150696A (en)
WO (1) WO1997015921A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6483797B1 (en) * 1999-08-20 2002-11-19 Lots Technology, Inc. Apparatuses and methods for reading after writing in optical recording systems
US20060072425A1 (en) * 2004-09-30 2006-04-06 Hanks Darwin M Array-based optical head

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744910A (en) * 1971-06-11 1973-07-10 Tno Apparatus for optical investigations and measurements with the aid of several coherent light beams
JPS544856B2 (en) * 1974-01-17 1979-03-10
US4550395A (en) * 1981-01-08 1985-10-29 Carlson John E Holographic system for the storage of audio, video and computer data
US5113286A (en) * 1990-09-27 1992-05-12 At&T Bell Laboratories Diffraction grating apparatus and method of forming a surface relief pattern in diffraction grating apparatus
EP0491458A1 (en) * 1990-12-14 1992-06-24 General Electric Company Multiple channel optical disk system
JP2865223B2 (en) * 1990-12-28 1999-03-08 松下電子工業株式会社 Polarizing plate for optical pickup and optical pickup device
JP2576077B2 (en) * 1991-09-07 1997-01-29 富士ゼロックス株式会社 Information recording device
US5619488A (en) * 1991-09-07 1997-04-08 Fuji Xerox Co., Ltd. Information recording device
WO1995005944A1 (en) * 1993-08-24 1995-03-02 Micracor, Inc. A printer and a print engine therefor

Also Published As

Publication number Publication date
EP0871953A1 (en) 1998-10-21
JPH11513817A (en) 1999-11-24
WO1997015921A1 (en) 1997-05-01
EP0871953A4 (en) 2000-02-09

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