Title:
ホログラフィック光記録媒体、記録装置及び再生装置
Document Type and Number:
Japanese Patent JP3574054
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a holographic optical recording medium which allows the irradiation with high-accuracy reference light and object light and a recording and reproducing device which records and reproduces information by using this holographic optical recording medium. SOLUTION: The holographic optical recording medium having a substrate transparent to light for hologram recording and light for servo and a hologram recording layer 2 disposed on this substrate 1 as constitution elements is constituted by forming the holographic optical recording medium having markers 3 arrayed on tracks 4 on the substrate 1 and further the recording and reproducing device having a means for recording holograms on the hologram recording layer 2 of the holographic optical recording medium and a means for reproducing wave fronts from the recorded holograms is constituted to have a servo mechanism of aligning the object light in hologram recording or aligning the reference light in wave front reproducing by means of the markers 3.
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Inventors:
Akira Furuya
Yoshiaki Kurokawa
Tatsuya Kume
Takaya Tanabe
Masahiro Ueno
Gaku Yamamoto
Yoshiaki Kurokawa
Tatsuya Kume
Takaya Tanabe
Masahiro Ueno
Gaku Yamamoto
Application Number:
JP2000248397A
Publication Date:
October 06, 2004
Filing Date:
August 18, 2000
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G03H1/22; G11B7/0065; G11B7/007; G11B7/24035; G11B7/24044; G11B7/2407; G11B7/24085; (IPC1-7): G11B7/24; G03H1/22; G11B7/0065; G11B7/007
Domestic Patent References:
| JP11126335A | ||||
| JP11126335A |
Attorney, Agent or Firm:
Yoshihiko Izumi
Shigeru Kobayashi
Shigeru Kobayashi