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. WO2007141953 - ILLUMINATION DEVICE AND PROJECTION TYPE VIDEO DISPLAY DEVICE USING SAME

Publication Number WO/2007/141953
Publication Date 13.12.2007
International Application No. PCT/JP2007/057578
International Filing Date 04.04.2007
IPC
G03B 21/14 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
F21V 8/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
8Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G02B 27/18 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
18for optical projection, e.g. combination of mirror and condenser and objective
G02F 1/13 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/13357 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13357Illuminating devices
H04N 9/31 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
12Picture reproducers
31Projection devices for colour picture display
CPC
G02B 27/283
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
28for polarising
283used for beam splitting or combining
G02F 1/133611
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
1336Illuminating devices
133602Direct backlight
133611including means for improving the brightness uniformity
G02F 1/133615
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
1336Illuminating devices
133615Edge-illuminating devices, i.e. illuminating from the side
G03B 21/208
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
208Homogenising, shaping of the illumination light
H04N 9/3105
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
12Picture reproducers
31Projection devices for colour picture display ; , e.g. using electronic spatial light modulators [ESLM]
3102using two-dimensional electronic spatial light modulators
3105for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
H04N 9/3152
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
12Picture reproducers
31Projection devices for colour picture display ; , e.g. using electronic spatial light modulators [ESLM]
3141Constructional details thereof
315Modulator illumination systems
3152for shaping the light beam
Applicants
  • 三洋電機株式会社 SANYO ELECTRIC CO., LTD. [JP]/[JP] (AllExceptUS)
  • 石井 孝治 ISHII, Koji [JP]/[JP] (UsOnly)
Inventors
  • 石井 孝治 ISHII, Koji
Agents
  • 紋田 誠 MONDA, Makoto
Priority Data
2006-15100631.05.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ILLUMINATION DEVICE AND PROJECTION TYPE VIDEO DISPLAY DEVICE USING SAME
(FR) DISPOSITIF D'ÉCLAIRAGE ET DISPOSITIF D'AFFICHAGE VIDÉO PAR PROJECTION L'UTILISANT
(JA) 照明装置及びそれを用いた投写型映像表示装置
Abstract
(EN)
An illumination device and a projection type video display device using the same are provided to reduce uneven brightness and to render a high-accuracy adjustment unnecessary. The illumination device and the projection type video display device using the same are comprised of a plurality of light sources (1a) and (1b) for projecting substantially parallel lights, an optical separation member (polarizing beam splitters (3a), (3b)) which reflects half of the substantially parallel lights projected by each of the light sources (1a), (1b) and gets the remaining half through, and a light path changing member (2) which makes the lights from each of the light sources (1a) and (1b) in alignment with the same direction and irradiates it to the entire area of the same irradiating surface (light incident surface of integrator lens (71)).
(FR)
Dispositif d'éclairage et dispositif d'affichage vidéo par projection l'utilisant permettant de réduire le manqué d'uniformité de la luminosité et de rendre inutiles les réglages de haute précision. Le dispositif d'éclairage et le dispositif d'affichage vidéo par projection l'utilisant comprennent une pluralité de sources lumineuses (1a) et (1b) pour projeter des faisceaux de lumière sensiblement parallèles, un élément de séparation optique (séparateurs de faisceau de polarisation, (3a), (3b)) qui réfléchit la moitié des faisceaux de lumière sensiblement parallèles émis par chacune des deux sources lumineuses (1a) et (1b) et laisse passer la seconde moitié, et un élément de modification du chemin lumineux (2) qui aligne les faisceaux de lumière des deux sources lumineuses (1a) et (1b) et qui les fait éclairer la totalité de la surface de la même zone éclairée (plan d'incidence de la lumière de la lentille de l'intégrateur (71)).
(JA)
 輝度ムラを低減することができると共に高精度な調整が不要となる照明装置及びそれを用いた投写型映像表示装置を提供する。  略平行光を出射する複数の光源1a,1bと、各光源1a,1bが出射した略平行光のうち半分を反射し、残り半分を透過する光分離部材(偏光ビームスプリッタ3a,3b)を有すると共に各光源1a,1bからの光を同一方向に揃えて同じ照射面(インテグレータレンズ71の光入射面)の全領域に照射する光路変更部材2とを備えた。
Latest bibliographic data on file with the International Bureau