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1. (WO2017132944) DISPLAY SYSTEM WITH STATIC GREEN PRIMARY COLOR REDUCTION FILTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/132944 International Application No.: PCT/CN2016/073505
Publication Date: 10.08.2017 International Filing Date: 04.02.2016
Chapter 2 Demand Filed: 14.11.2017
IPC:
G02F 1/133 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
Applicants:
BARCO VISUAL (BEIJING) ELECTRONICS CO., LTD. [CN/CN]; No. 16 Changsheng Road, Chang Ping Park Zhong Guan Cun Science Park Chang Ping District, Beijing 102200, CN
Inventors:
COULIER, Nico Gerard; BE
WANG, XiaoYun; CN
CHEDAD, Allel; BE
Agent:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC; 435 Guiping Road Shanghai 200233, CN
Priority Data:
Title (EN) DISPLAY SYSTEM WITH STATIC GREEN PRIMARY COLOR REDUCTION FILTER
(FR) SYSTÈME D'AFFICHAGE MUNI D'UN FILTRE DE RÉDUCTION DE COULEUR PRIMAIRE VERTE STATIQUE
Abstract:
(EN) A projection system for generating an image with three primary colors, comprising a first and second blue laser beam (325, 335), a wavelength conversion element (340) for converting said second blue beam (335) into a converted beam (345) having a waveband comprising at least the second and third wavebands, a beam combiner (360) for combining the first beam (325) and the converted beam (345), which combination results in a white beam (365), a notch filter (370) placed in the optical path of the white beam (365) to form a modified white beam (375) comprising at least the first, second and third wavebands provided to an imaging module (380), wherein a static waveband reduction filter (371) is further provided for changing the wavelength of transmitted second waveband of the white beam (365), such as to adjust a projector white point shift.
(FR) La présente invention se rapporte à un système de projection qui permet de générer une image à trois couleurs primaires, et qui comprend des premier et second faisceaux laser bleus (325, 335), un élément de conversion de longueur d'onde (340) servant à convertir ledit second faisceau bleu (335) en un faisceau converti (345) qui possède une gamme d'ondes incluant au moins les deuxième et troisième gammes d'ondes, un mélangeur de faisceaux (360) destiné à mélanger le premier faisceau (325) et le faisceau converti (345), ce mélange ayant pour résultat un faisceau blanc (365), un filtre coupe-bande (370) placé sur le chemin optique du faisceau blanc (365) pour former un faisceau blanc modifié (375) qui inclut au minimum les première, deuxième et troisième gammes d'ondes fournies à un module d'imagerie (380), un filtre de réduction de gamme d'ondes statique (371) étant en outre prévu pour modifier la longueur d'onde de la deuxième gamme d'ondes transmise du faisceau blanc (365), de manière à ajuster un décalage de point blanc de projecteur.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP3411750IN201817033036CN109073924US20190025601