JPS5057645A - - Google Patents

Info

Publication number
JPS5057645A
JPS5057645A JP49089918A JP8991874A JPS5057645A JP S5057645 A JPS5057645 A JP S5057645A JP 49089918 A JP49089918 A JP 49089918A JP 8991874 A JP8991874 A JP 8991874A JP S5057645 A JPS5057645 A JP S5057645A
Authority
JP
Japan
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.)
Pending
Application number
JP49089918A
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 filed Critical
Publication of JPS5057645A publication Critical patent/JPS5057645A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G02F1/29—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 position or the direction of light beams, i.e. deflection
    • G02F1/33—Acousto-optical deflection devices
    • G02F1/335—Acousto-optical deflection devices having an optical waveguide structure
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • 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
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
    • 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
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optical Head (AREA)
  • Optical Integrated Circuits (AREA)
JP49089918A 1973-09-20 1974-08-07 Pending JPS5057645A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US399007A US3877784A (en) 1973-09-20 1973-09-20 Beam address optical storage head

Publications (1)

Publication Number Publication Date
JPS5057645A true JPS5057645A (ja) 1975-05-20

Family

ID=23577725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49089918A Pending JPS5057645A (ja) 1973-09-20 1974-08-07

Country Status (5)

Country Link
US (1) US3877784A (ja)
JP (1) JPS5057645A (ja)
DE (1) DE2439295A1 (ja)
FR (1) FR2245046B1 (ja)
GB (1) GB1446499A (ja)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162118A (en) * 1977-04-01 1979-07-24 Xerox Corporation Waveguide imaging system
FR2426922A1 (fr) * 1978-05-26 1979-12-21 Thomson Csf Structure optique compacte a source integree
US4279464A (en) * 1979-12-18 1981-07-21 Northern Telecom Limited Integrated optical wavelength demultiplexer
US4425023A (en) * 1980-01-31 1984-01-10 Canon Kabushiki Kaisha Beam spot scanning device
JPS57142664A (en) * 1981-02-27 1982-09-03 Canon Inc Information recorder
JPS57142603A (en) * 1981-02-27 1982-09-03 Canon Inc Optical scanner
JPS59124306A (ja) * 1982-12-29 1984-07-18 Canon Inc 光集積回路素子およびその作製方法
US4610009A (en) * 1983-05-23 1986-09-02 Xerox Corporation Writing, erasing and readout system for a magneto-optic recording medium
JPS6069840A (ja) * 1983-09-22 1985-04-20 Canon Inc 情報記録又は再生装置
DE3434586A1 (de) * 1983-09-21 1985-04-11 Canon K.K., Tokio/Tokyo Verfahren und vorrichtung zur informationsverarbeitung
EP0288033B1 (en) * 1987-04-20 1993-04-07 Fuji Photo Film Co., Ltd. Pickup apparatus for magneto-optical recording medium
US4991160A (en) * 1988-05-31 1991-02-05 Nikon Precision Inc. Integrated optical device for magneto-optical recording and reading head
EP0568753A1 (en) * 1992-05-07 1993-11-10 International Business Machines Corporation High-density optical data storage unit and method for writing and reading information
JP2000036128A (ja) * 1998-05-11 2000-02-02 Seiko Instruments Inc 近視野光学ヘッドおよび再生方法
US6454710B1 (en) 2001-04-11 2002-09-24 Motorola, Inc. Devices and methods for monitoring an analyte
US6379622B1 (en) 2001-04-11 2002-04-30 Motorola, Inc. Sensor incorporating a quantum dot as a reference
US6694158B2 (en) 2001-04-11 2004-02-17 Motorola, Inc. System using a portable detection device for detection of an analyte through body tissue
US7521019B2 (en) * 2001-04-11 2009-04-21 Lifescan, Inc. Sensor device and methods for manufacture

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410623A (en) * 1965-03-09 1968-11-12 Bell Telephone Labor Inc Transition section for beam waveguides using aperture-limited lenses
US3640197A (en) * 1970-01-22 1972-02-08 Motorola Inc Production of fine single lines and of discrete closely spaced fine lines
US3737236A (en) * 1972-01-03 1973-06-05 Corning Glass Works Magnetooptic readout system utilizing optical waveguide fibers
US3779628A (en) * 1972-03-30 1973-12-18 Corning Glass Works Optical waveguide light source coupler
US3774987A (en) * 1972-06-27 1973-11-27 Bell Electric Research Ltd Coupling of lasers to optical fibres

Also Published As

Publication number Publication date
DE2439295A1 (de) 1975-03-20
FR2245046A1 (ja) 1975-04-18
GB1446499A (en) 1976-08-18
US3877784A (en) 1975-04-15
FR2245046B1 (ja) 1976-10-22

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