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1. CN101896973 - Apparatus for recording/reproducing holographic information

Office Chine
Numéro de la demande 200880120494.X
Date de la demande 04.11.2008
Numéro de publication 101896973
Date de publication 24.11.2010
Type de publication A
CIB
G11B 7/0065
GPHYSIQUE
11ENREGISTREMENT DE L'INFORMATION
BENREGISTREMENT DE L'INFORMATION BASÉ SUR UN MOUVEMENT RELATIF ENTRE LE SUPPORT D'ENREGISTREMENT ET LE TRANSDUCTEUR
7Enregistrement ou reproduction par des moyens optiques, p.ex. enregistrement utilisant un faisceau thermique de rayonnement optique, reproduction utilisant un faisceau optique à puissance réduite; Supports d'enregistrement correspondants
004Procédés d'enregistrement, de reproduction ou d'effacement; Circuits correspondants pour la lecture, l'écriture ou l'effacement
0065Enregistrement, reproduction ou effacement en utilisant des dessins d'interférence optique, p.ex. des hologrammes
CPC
G11B 7/083
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
08Disposition or mounting of heads or light sources relatively to record carriers
083relative to record carriers storing information in the form of optical interference patterns, e.g. 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 ; 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 7/1356
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
G11B 7/1365
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
1365Separate or integrated refractive elements, e.g. wave plates
G11B 2007/0924
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
08Disposition or mounting of heads or light sources relatively to record carriers
09with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
0908for focusing only
0917Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
0924Skewed beams methods (using an angled beam, i.e. a beam which is reflected from the disc at an angle different from 90°)
Déposants Samsung Electronics Co., Ltd.
三星电子株式会社
Inventeurs Jeong Taek-seong
郑泽成
Bae Jae-cheol
裴在喆
Mandataires han mengxing ma cuibeng
北京铭硕知识产权代理有限公司 11286
北京铭硕知识产权代理有限公司 11286
Données relatives à la priorité 1020070129084 12.12.2007 KR
Titre
(EN) Apparatus for recording/reproducing holographic information
(ZH) 记录/再现全息信息的设备
Abrégé
(EN)
A holographic information recording and/or reproducing apparatus, including a light source to emit light; a polarization forming optical system to form a polarized signal beam and a polarized reference beam from the light emitted from the light source, wherein the polarized signal beam and the polarized reference beam are incident on a holographic information storage medium through an identical surface; a focusing optical system to focus the polarized signal beam and the polarized reference beam onto in the holographic information storage medium so that information is recorded by an interference pattern; and an adjustment optical system to set the focal positions of the polarized signal beam and the polarized reference beam, and to adjust a difference between a path of the polarized signal beam and a path of the polarized reference beam.

(ZH)

本发明公开了一种记录/再现全息信息的设备,包括:光源,发射光;偏振形成光学系统,从由光源发射的光形成偏振的信号光和偏振的参考光,其中,偏振的信号光和偏振的参考光通过同一表面入射到全息信息存储介质上;聚焦光学系统,将偏振的信号光和偏振的参考光聚焦到全息信息存储介质上,从而使信息通过干涉图案记录;调节光学系统,用于设置偏振的信号光的焦点位置和偏振的参考光的焦点位置,并且用于调节偏振的信号光的光程和偏振的参考光的光程之间的差。