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1. KR1020090062014 - APPARATUS FOR RECORDING/PLAYING HOLOGRAPHIC INFORMATION OF SINGLE SIDE INCIDENT MODE

Office République de Corée
Numéro de la demande 1020070129084
Date de la demande 12.12.2007
Numéro de publication 1020090062014
Date de publication 17.06.2009
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
G11B2007/0924
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.
삼성전자주식회사
Inventeurs JEONG, TAEK SEONG
정택성
BAE, JAE CHEOL
배재철
Mandataires 리앤목특허법인
Titre
(EN) APPARATUS FOR RECORDING/PLAYING HOLOGRAPHIC INFORMATION OF SINGLE SIDE INCIDENT MODE
(KO) 홀로그래픽 정보 기록/재생장치
Abrégé
(EN)
PURPOSE: An apparatus for recording/playing holographic information is provided to reduce the number of accessories and size of optical system by having a first adjusting member and second adjusting member. CONSTITUTION: An apparatus for recording/playing holographic information comprises: a first light source(10) emitting light; a polarization optical system(50) which forms signal light and reference light of polarization; a focusing optical system for recording information by the interference fringe; and an adjustable optical system for adjusting the difference between the signal light and reference light. The adjustable optical system comprises: a first adjusting member(109) for adjusting the focus position of the signal light and reference light; a second adjusting member(105) for adjusting the path difference between the reference light and signal light. ©KIPO 2009

(KO)
광을 출사하는 제1광원과, 제1광원에서 출사된 광으로부터 동일면을 통해 홀로그래픽 정보 저장매체에 입사되는 서로 직교하는 편광의 신호광과 참조광을 형성하는 편광 형성 광학계와, 신호광과 참조광을 홀로그래픽 정보 저장매체 내에 집속시켜, 간섭무늬에 의해 정보가 기록되도록 하는 집속광학계와, 신호광과 참조광의 초점 위치를 맞추고 이 신호광과 참조광의 경로차를 조정하기 위한 조정 광학계를 포함하며, 조정 광학계는, 홀로그래픽 정보 저장매체에 조사되는 신호광과 참조광의 초점 위치를 맞추기 위한 제1조정부재와, 참조광과 신호광의 경로차를 조정하기 위한 제2조정부재와, 제1광학계로부터 입사되는 서로 직교하는 편광의 신호광 및 참조광을 편광에 따라 두 개의 경로로 분리하여 제1조정부재 및 제2조정부재로 향하도록 하는 편광분리소자를 포함하는 홀로그래픽 정보 기록/재생장치가 개시되어 있다.