EA200201260A1 - Устройство и способ записи оптической информации, устройство и способ воспроизведения оптической информации и устройство и способ записи/воспроизведения оптической информации - Google Patents

Устройство и способ записи оптической информации, устройство и способ воспроизведения оптической информации и устройство и способ записи/воспроизведения оптической информации

Info

Publication number
EA200201260A1
EA200201260A1 EA200201260A EA200201260A EA200201260A1 EA 200201260 A1 EA200201260 A1 EA 200201260A1 EA 200201260 A EA200201260 A EA 200201260A EA 200201260 A EA200201260 A EA 200201260A EA 200201260 A1 EA200201260 A1 EA 200201260A1
Authority
EA
Eurasian Patent Office
Prior art keywords
information
recording
layer
optical information
light emission
Prior art date
Application number
EA200201260A
Other languages
English (en)
Inventor
Хидейоши Хоримаи
Original Assignee
Оптуэр Корпорейшн
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 Оптуэр Корпорейшн filed Critical Оптуэр Корпорейшн
Publication of EA200201260A1 publication Critical patent/EA200201260A1/ru

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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00772—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track on record carriers storing information in the form of optical interference patterns, e.g. holograms
    • G11B7/00781—Auxiliary information, e.g. index marks, address marks, pre-pits, gray codes
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • 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
    • G11B7/125—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
    • 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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/10—Modulation characteristics, e.g. amplitude, phase, polarisation
    • G03H2210/12—Phase modulating object, e.g. living cell
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/20—2D object
    • G03H2210/22—2D SLM object wherein the object beam is formed of the light modulated by the SLM
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/19—Microoptic array, e.g. lens array

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Holo Graphy (AREA)

Abstract

Запись или воспроизведение информации посредством голографии обеспечивается с использованием компактной оптической системы и при улучшенном отношении сигнал/шум для восстановленной информации. В процессе записи информации фазовым пространственным оптическим модулятором (44) на основе записываемой информации формируется информационное световое излучение и записывающее опорное световое излучение с пространственно модулированной фазой. Слой (3) для записи информации носителя (1) оптической информации освещают этим излучением, производя запись информации в слое (3) в виде интерференционной картины, формируемой в результате интерференции между информационным световым излучением и записывающим опорным световым излучением. В процессе воспроизведения информации слой (3) освещают восстанавливающим опорным световым излучением, а восстановленное световое излучение, формируемое в результате освещения слоя (3), накладывается на восстанавливающее опорное световое излучение с формированием комбинированного светового излучения и это комбинированное световое излучение регистрируется фоточувствительным элементом (45) для восстановления информации.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA200201260A 2000-07-05 2001-06-25 Устройство и способ записи оптической информации, устройство и способ воспроизведения оптической информации и устройство и способ записи/воспроизведения оптической информации EA200201260A1 (ru)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000203563 2000-07-05
JP2000315224A JP3639202B2 (ja) 2000-07-05 2000-10-16 光情報記録装置および方法、光情報再生装置および方法、ならびに光情報記録再生装置および方法
PCT/JP2001/005389 WO2002003145A1 (fr) 2000-07-05 2001-06-25 Appareil et procede d'enregistrement d'information optique, appareil et procede de reproduction d'information optique, et appareil et procede d'enregistrement/reproduction d'information optique

Publications (1)

Publication Number Publication Date
EA200201260A1 true EA200201260A1 (ru) 2003-06-26

Family

ID=26595416

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200201260A EA200201260A1 (ru) 2000-07-05 2001-06-25 Устройство и способ записи оптической информации, устройство и способ воспроизведения оптической информации и устройство и способ записи/воспроизведения оптической информации

Country Status (9)

Country Link
US (1) US7065032B2 (ru)
EP (1) EP1306732A4 (ru)
JP (1) JP3639202B2 (ru)
KR (1) KR20030019468A (ru)
CN (1) CN1451105A (ru)
AU (1) AU2001274600A1 (ru)
CA (1) CA2414907A1 (ru)
EA (1) EA200201260A1 (ru)
WO (1) WO2002003145A1 (ru)

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Also Published As

Publication number Publication date
US20040100892A1 (en) 2004-05-27
WO2002003145A1 (fr) 2002-01-10
JP2002083431A (ja) 2002-03-22
CN1451105A (zh) 2003-10-22
EP1306732A1 (en) 2003-05-02
AU2001274600A1 (en) 2002-01-14
KR20030019468A (ko) 2003-03-06
US7065032B2 (en) 2006-06-20
CA2414907A1 (en) 2002-12-31
JP3639202B2 (ja) 2005-04-20
EP1306732A4 (en) 2007-09-19

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