Title:
HOLOGRAPHIC OPTICAL PICKUP DEVICE, HOLOGRAPHIC DEVICE, AND HIGH-SPEED IMAGE PICKUP DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/073041
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a holographic optical pickup device capable of performing high-speed reproduction, a holographic device, and a high-speed image pickup device.
Disclosed is an optical pickup device that reproduces information from a recording medium having an interference pattern of signal light and reference light recorded thereon as a hologram. The optical pickup device is characterized in being provided with: a laser output section that outputs the reference light; a lens through which the reference light outputted from the laser output section is inputted to an optical information recording medium; and a detection optical section that detects diffracted reproducing light from the optical information recording medium on the basis of the reference light. The optical pickup device is also characterized in that the detection optical section includes a plurality of image pickup elements.
Inventors:
YAMAZAKI KAZUYOSHI (JP)
Application Number:
PCT/JP2012/078776
Publication Date:
May 15, 2014
Filing Date:
November 07, 2012
Export Citation:
Assignee:
HITACHI CONSUMER ELECTRONICS (JP)
International Classes:
G11B7/0065; G03H1/26; G11B7/135
Foreign References:
| JP2010061718A | 2010-03-18 | |||
| JPH0946477A | 1997-02-14 | |||
| JPH09212910A | 1997-08-15 | |||
| JP2004212205A | 2004-07-29 | |||
| JP2010061750A | 2010-03-18 |
Attorney, Agent or Firm:
INOUE, Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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