Processing

Please wait...

Settings

Settings

Goto Application

1. CN103348409 - 全息存储器再现装置及全息存储器的再现方法、解调装置及解调方法以及观测装置及观测方法

Office China
Application Number 201180050717.1
Application Date 19.10.2011
Publication Number 103348409
Publication Date 09.10.2013
Publication Kind A
IPC
G11B 7/135
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
G03H 1/22
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red, or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
22Processes or apparatus for obtaining an optical image from holograms
G11B 7/0065
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
0065Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
CPC
G03H 1/2249
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
22Processes or apparatus for obtaining an optical image from holograms
2249Holobject properties
G03H 2001/0441
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
04Processes or apparatus for producing holograms
0402Recording geometries or arrangements
0441Formation of interference pattern, not otherwise provided for
G03H 2210/562
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
2210Object characteristics
50Nature of the object
56Multiple objects, e.g. each in different environment
562Holographic object, i.e. a combination of an object and holobject
G11B 7/0065
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor;
004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
0065Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
G11B 7/128
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor;
12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
125Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
128Modulators
G11B 7/1356
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor;
12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
1356Double or multiple prisms, i.e. having two or more prisms in cooperation
Applicants 国立大学法人北海道大学
Inventors 冈本淳
九里佳祐
高林正典
Agents 南京天华专利代理有限责任公司 32218
Priority Data 2010-234640 19.10.2010 JP
Title
(ZH) 全息存储器再现装置及全息存储器的再现方法、解调装置及解调方法以及观测装置及观测方法
Abstract
(ZH)

本发明涉及能够不受噪声影响而精密地再现多值相位信息的全息存储器再现装置。本发明的全息存储器再现装置包括:全息图衍射光生成单元,将第一参考光照射至所述全息存储器,生成所述第一全息图的衍射光;全息图生成单元,使能与所述第一全息图的衍射光产生干涉的第二参考光的相位发生变化,并且基于所述第一全息图的衍射光与所述相位发生了变化的第二参考光生成第二全息图;检测单元,检测所述第二全息图的强度分布;以及处理单元,根据所述强度分布对所述空间相位调制信号或所述空间正交振幅调制信号进行解调。