Title:
DETECTING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/033555
Kind Code:
A1
Abstract:
Provided is a detecting method wherein, with respect to a recording medium (140) having a hologram recording region and a management region wherein portions with different refractive indexes corresponding to the use state of the hologram recording region are recorded and a photopolymer is contained, a step of irradiating the management region (141) of the recording medium with light at a wavelength of 550-800 nm, and a step of detecting the light polarized corresponding to the recording medium portions having different refractive indexes by means of a light receiving element (130) are provided. The use state of the recording medium (140) is detected using the polarized light.
Inventors:
MATSUMOTO KAZUKI
KANAMARU MASAHIRO
HAYASE RUMIKO
SASAO NORIKATSU
TERAI MASAYA
KAWAMONZEN YOSHIAKI
KANAMARU MASAHIRO
HAYASE RUMIKO
SASAO NORIKATSU
TERAI MASAYA
KAWAMONZEN YOSHIAKI
Application Number:
PCT/JP2009/004614
Publication Date:
March 24, 2011
Filing Date:
September 15, 2009
Export Citation:
Assignee:
TOSHIBA KK (JP)
MATSUMOTO KAZUKI
KANAMARU MASAHIRO
HAYASE RUMIKO
SASAO NORIKATSU
TERAI MASAYA
KAWAMONZEN YOSHIAKI
MATSUMOTO KAZUKI
KANAMARU MASAHIRO
HAYASE RUMIKO
SASAO NORIKATSU
TERAI MASAYA
KAWAMONZEN YOSHIAKI
International Classes:
G11B7/0065; G03H1/26
Foreign References:
| JP2008140476A | 2008-06-19 | |||
| JP2001126266A | 2001-05-11 | |||
| JP2005043692A | 2005-02-17 |
Attorney, Agent or Firm:
SAGOI MASAYUKI (JP)
Masayuki Sunai (JP)
Masayuki Sunai (JP)
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