Title:
ホログラム記録再生装置
Document Type and Number:
Japanese Patent JP5236321
Kind Code:
B2
Abstract:
A hologram recording/reproducing apparatus includes: a coherent light source; a spatial light modulator which spatially modulates light from the coherent light source; a Fourier transform lens which concentrates light modulated by the spatial light modulator upon a hologram medium; and a two-dimensional light-receiving element array which receives light from the hologram medium. The spatial light modulator is divided into a reference light area and a signal light area, and the divergence angle of reference light emitted from the reference light area is wider than the divergence angle of signal light emitted from the signal light area.
Inventors:
Kenichi Kasumi
Tomoya Sugita
Tomoya Sugita
Application Number:
JP2008063065A
Publication Date:
July 17, 2013
Filing Date:
March 12, 2008
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G03H1/26; G02B3/00; G02B5/02; G02F1/13; G11B7/0065
Domestic Patent References:
| JP2006107663A | ||||
| JP2005241773A | ||||
| JP2007519980A | ||||
| JP200030468A | ||||
| JP2002216359A | ||||
| JP2006343533A | ||||
| JP6138424A | ||||
| JP2007164862A |
Foreign References:
| WO2006093196A1 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Shinsuke Otsuki
Masataka Otani
Shinsuke Otsuki