ATE363122T1 - Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe - Google Patents

Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe

Info

Publication number
ATE363122T1
ATE363122T1 AT03017932T AT03017932T ATE363122T1 AT E363122 T1 ATE363122 T1 AT E363122T1 AT 03017932 T AT03017932 T AT 03017932T AT 03017932 T AT03017932 T AT 03017932T AT E363122 T1 ATE363122 T1 AT E363122T1
Authority
AT
Austria
Prior art keywords
light flux
diffracted ray
wavelength
information recording
reproduction
Prior art date
Application number
AT03017932T
Other languages
English (en)
Inventor
Norikazu Arai
Toshiyuki Kojima
Toshihiko Kiriki
Kohei Ota
Shinichiro Saito
Original Assignee
Konica Minolta Opto Inc
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 Konica Minolta Opto Inc filed Critical Konica Minolta Opto Inc
Application granted granted Critical
Publication of ATE363122T1 publication Critical patent/ATE363122T1/de

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • 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
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/139—Numerical aperture control means
    • 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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0084—Key or electric means; Emergency release
    • E05B2047/0086—Emergency release, e.g. key or electromagnet
    • E05B2047/0087—Electric spare devices, e.g. auxiliary batteries or capacitors for back up
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Lenses (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Glass Compositions (AREA)
  • Lubricants (AREA)
AT03017932T 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe ATE363122T1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1501099 1999-01-22
JP4192599 1999-02-19
JP9534799 1999-04-01
JP9748099 1999-04-05
JP25746699 1999-09-10
JP31270199 1999-11-02

Publications (1)

Publication Number Publication Date
ATE363122T1 true ATE363122T1 (de) 2007-06-15

Family

ID=27548555

Family Applications (7)

Application Number Title Priority Date Filing Date
AT03017929T ATE362174T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe
AT01110301T ATE441183T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung, mit der optischen abtastvorrichtung versehenes aufnahme/wiedergabegerät, optisches element und verfahren zur datenaufnahme/wiedergabe
AT01121549T ATE291269T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung, aufzeichnungs- /- wiedergabegerät mit dieser optischen abtastvorrichtung, optisches element und verfahren zur informationsaufzeichnung /- wiedergabe
AT03017931T ATE362173T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe
AT03017932T ATE363122T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe
AT03017930T ATE362172T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe
AT00300311T ATE216119T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung und verfahren zur informationsaufzeichnung und informationswiedergabe

Family Applications Before (4)

Application Number Title Priority Date Filing Date
AT03017929T ATE362174T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe
AT01110301T ATE441183T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung, mit der optischen abtastvorrichtung versehenes aufnahme/wiedergabegerät, optisches element und verfahren zur datenaufnahme/wiedergabe
AT01121549T ATE291269T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung, aufzeichnungs- /- wiedergabegerät mit dieser optischen abtastvorrichtung, optisches element und verfahren zur informationsaufzeichnung /- wiedergabe
AT03017931T ATE362173T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe

Family Applications After (2)

Application Number Title Priority Date Filing Date
AT03017930T ATE362172T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe
AT00300311T ATE216119T1 (de) 1999-01-22 2000-01-18 Optische abtastvorrichtung und verfahren zur informationsaufzeichnung und informationswiedergabe

Country Status (12)

Country Link
US (13) US6870805B1 (de)
EP (8) EP1381037B1 (de)
JP (3) JP4775674B2 (de)
KR (7) KR100411219B1 (de)
CN (5) CN1553443A (de)
AT (7) ATE362174T1 (de)
AU (1) AU760001B2 (de)
CA (1) CA2359309C (de)
DE (7) DE60034829T2 (de)
HK (1) HK1026977A1 (de)
ID (1) ID29992A (de)
WO (1) WO2000043997A2 (de)

Families Citing this family (123)

* Cited by examiner, † Cited by third party
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DE60140028D1 (de) * 2000-07-22 2009-11-12 Samsung Electronics Co Ltd Kompatibles optisches Abtastgerät
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