Invention Grant
US07974171B2 Optical recording method, optical reproduction method, optical recording apparatus, and optical recording medium 失效
光学记录方法,光学再现方法,光学记录装置和光学记录介质

  • Patent Title: Optical recording method, optical reproduction method, optical recording apparatus, and optical recording medium
  • Patent Title (中): 光学记录方法,光学再现方法,光学记录装置和光学记录介质
  • Application No.: US12280514
    Application Date: 2007-02-21
  • Publication No.: US07974171B2
    Publication Date: 2011-07-05
  • Inventor: Yoshihisa Usami
  • Applicant: Yoshihisa Usami
  • Applicant Address: JP Tokyo
  • Assignee: Fujifilm Corporation
  • Current Assignee: Fujifilm Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Sughrue Mion, PLLC
  • Priority: JP2006-046741 20060223
  • International Application: PCT/JP2007/053144 WO 20070221
  • International Announcement: WO2007/097352 WO 20070830
  • Main IPC: G11B7/00
  • IPC: G11B7/00
Optical recording method, optical reproduction method, optical recording apparatus, and optical recording medium
Abstract:
The present invention provides an optical recording method including: recording information on a recording layer for holographically recording information in an optical recording medium by irradiating the optical recording medium with an information beam and a reference beam, and repetitively recording information on the recording layer while moving at least any one of the information beam and reference beam and the recording layer along the surface of the recording layer, thereby being capable of shift-multiplex recording operations, wherein the optical recording medium is irradiated on a recording pulse basis, the peak intensity of light of the recording pulse is 0.1 mW to 100 mW, the irradiation time is 0.05 nsec to 1×105 nsec, and the irradiation of recording pulse is performed 5 times to 1×107 times per 1 msec; and also provides an optical recording apparatus and an optical recording medium.
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