Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Saturday 31.10.2020 at 7:00 AM CET
Settings

Settings

Goto Application

1. WO2007141871 - HOLOGRAM RECORDING DEVICE AND HOLOGRAM RECORDING METHOD

Publication Number WO/2007/141871
Publication Date 13.12.2007
International Application No. PCT/JP2006/311585
International Filing Date 09.06.2006
IPC
G03H 1/26 2006.01
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
26Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique
G11B 7/0065 2006.01
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
G11B 7/135 2012.01
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
CPC
G03H 1/0465
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
0465Particular recording light; Beam shape or geometry
G03H 1/26
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
26Processes or apparatus specially adapted to produce multiple ; sub-; holograms or to obtain images from them, e.g. multicolour technique
G03H 1/265
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
26Processes or apparatus specially adapted to produce multiple ; sub-; holograms or to obtain images from them, e.g. multicolour technique
2645Multiplexing processes, e.g. aperture, shift, or wavefront multiplexing
265Angle multiplexing; Multichannel 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 7/00772
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;
007Arrangement of the information on the record carrier, e.g. form of tracks ; , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
00772on record carriers storing information in the form of optical interference patterns, e.g. holograms
G11B 7/08564
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
085with provision for moving the light beam into, or out of, its operative position ; or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
08547Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
08564using galvanomirrors
Applicants
  • 富士通株式会社 FUJITSU LIMITED [JP]/[JP] (AllExceptUS)
  • 宇野 和史 UNO, Kazushi [JP]/[JP] (UsOnly)
  • 手塚 耕一 TEZUKA, Kouichi [JP]/[JP] (UsOnly)
  • 吉川 浩寧 YOSHIKAWA, Hiroyasu [JP]/[JP] (UsOnly)
  • 岩村 康正 IWAMURA, Yasumasa [JP]/[JP] (UsOnly)
  • 山影 譲 YAMAKAGE, Yuzuru [JP]/[JP] (UsOnly)
Inventors
  • 宇野 和史 UNO, Kazushi
  • 手塚 耕一 TEZUKA, Kouichi
  • 吉川 浩寧 YOSHIKAWA, Hiroyasu
  • 岩村 康正 IWAMURA, Yasumasa
  • 山影 譲 YAMAKAGE, Yuzuru
Agents
  • 吉田 稔 YOSHIDA, Minoru
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) HOLOGRAM RECORDING DEVICE AND HOLOGRAM RECORDING METHOD
(FR) DISPOSITIF D'ENREGISTREMENT D'HOLOGRAMME ET PROCÉDÉ D'ENREGISTREMENT D'HOLOGRAMME
(JA) ホログラム記録装置およびホログラム記録方法
Abstract
(EN)
In a hologram recording device, a hologram recording medium (B) is irradiated with a recording beam (S) at a fixed incident angle (&thetas;r), and at the same time, while variably controlling the incident angle (&thetas;r) to the hologram recording medium (B), an irradiation portion (p) of the recording beam (S) is irradiated with a reference beam (R), and multiple recording of hologram is performed. The hologram recording device is provided with at least one variable reflecting means (10) for guiding the reference beam (R) to the irradiation portion (p) by reflection and swings around a prescribed axis (x) so that the incident angle (&thetas;r) of the reference beam (R) is changed. The hologram recording device is also provided with a light blocking means (11), which swings as one unit with the variable reflecting means (10) and partially blocks the reference beam (R) so that the larger the incident angle (&thetas;r) of the reference beam (R) becomes, the smaller the luminous flux diameter of the reference beam becomes.
(FR)
Dans le dispositif d'enregistrement d'hologramme selon l'invention, un support d'enregistrement d'hologramme (B) est irradié avec un faisceau d'enregistrement (S) à un angle incident fixe (ϑr), et en même temps, tout en commandant de manière variable l'angle incident (ϑr) vers le support d'enregistrement d'hologramme (B), une portion d'irradiation (p) du faisceau d'enregistrement (S) est irradiée avec un faisceau de référence (R), et un enregistrement multiple de l'hologramme est réalisé. Le dispositif d'enregistrement d'hologramme comporte au moins un moyen de réflexion variable (10) servant à guider le faisceau de référence (R) vers la portion d'irradiation (p) par réflexion et oscille autour d'un axe (X) prescrit de façon à modifier l'angle incident (ϑr) du faisceau de référence (R). Le dispositif d'enregistrement d'hologramme comporte également un moyen de blocage de la lumière (11) qui oscille comme une unité avec le moyen de réflexion variable (10) et bloque partiellement le faisceau de référence (R) de sorte que lorsque l'angle incident (ϑr) du faisceau de référence (R) s'élargit, le diamètre de flux lumineux du faisceau de référence diminue.
(JA)
 ホログラム記録媒体(B)に対して一定の入射角(θs)で記録光(S)を照射するとともに、ホログラム記録媒体(B)に対する入射角(θr)を可変制御しながら記録光(S)の照射部位(p)に参照光(R)を照射し、ホログラムを多重記録するホログラム記録装置であって、参照光(R)を反射によって照射部位(p)へと導くとともに、この参照光(R)の入射角(θr)を変化させるように所定の軸(x)周りに揺動させられる少なくとも1つの可変反射手段(10)と、可変反射手段(10)と一体になって揺動させられ、参照光(R)の入射角(θr)が大きくなるほど、この参照光(R)の光束径が小さくなるように部分的に遮る遮光手段(11)とを備えている。
Latest bibliographic data on file with the International Bureau