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1. (WO2018196386) LASER PROJECTION SCREEN AND PROJECTION SYSTEM
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Pub. No.: WO/2018/196386 International Application No.: PCT/CN2017/114845
Publication Date: 01.11.2018 International Filing Date: 06.12.2017
IPC:
G03B 21/56 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS 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
21
Projectors or projection-type viewers; Accessories therefor
54
Accessories
56
Projection screens
Applicants:
青岛海信电器股份有限公司 QINGDAO HISENSE ELECTRONICS CO., LTD. [CN/CN]; 中国山东省青岛市 经济技术开发区前湾港路218号 218 Qian Wangang Rd, Qingdao Economic and Development Zone Qingdao, Shandong 266555, CN
Inventors:
杨长明 YANG, Changming; CN
田新团 TIAN, Xintuan; CN
张王军 ZHANG, Wangjun; CN
贾昌明 JIA, Changming; CN
Agent:
北京中博世达专利商标代理有限公司 BEIJING ZBSD PATENT & TRADEMARK AGENT LTD.; 中国北京市 海淀区交大东路31号11号楼8层 8F, Building 11 No. 31 Jiaoda East Road, Haidian District Beijing 100044, CN
Priority Data:
201710279245.625.04.2017CN
Title (EN) LASER PROJECTION SCREEN AND PROJECTION SYSTEM
(FR) ÉCRAN DE PROJECTION LASER ET SYSTÈME DE PROJECTION
(ZH) 一种激光投影屏幕和投影系统
Abstract:
(EN) A laser projection screen and a projection system relate to the technical field of laser projection devices are proposed to solve the problem in the prior art that the laser projection screen is hard to maintain the surface flatness under a severe environment such as high temperature, low cold, or low air pressure. The laser projection screen comprises a back plate (1) and an optical film (2) laminated on the back plate (1); the back plate (1) is made of a magnetic material; a magnet (4) is fixed on the surface of the optical film (2) close to the back plate (1); and the optical film (2) is attached to the back plate (1) by means of the magnet (4). The laser projection screen can be used to reflect light emitted from the laser into eyes of audiences.
(FR) L'invention concerne un écran de projection laser et un système de projection qui se rapportent au domaine technique des dispositifs de projection laser qui sont proposés pour résoudre le problème de l'état de la technique selon lequel il est difficile de maintenir la planéité de surface de l'écran de projection laser dans un environnement difficile tel qu'une température élevée, une basse température froide ou une faible pression d'air. L'écran de projection laser comprend une plaque arrière (1) et un film optique (2) stratifié sur la plaque arrière (1). La plaque arrière (1) est constituée d'un matériau magnétique. Un aimant (4) est fixé sur la surface du film optique (2) à proximité de la plaque arrière (1) et le film optique (2) est fixé à la plaque arrière (1) au moyen de l'aimant (4). L'écran de projection laser peut être utilisé pour réfléchir la lumière émise depuis le laser dans les yeux des auditoires.
(ZH) 一种激光投影屏幕和投影系统,涉及激光投影设备技术领域。为解决现有技术中激光投影屏幕在高温、低冷或低气压等恶劣环境下难以保持其表面平整度的问题而提出。激光投影屏幕包括背板(1)以及与背板(1)层叠设置的光学膜片(2),背板(1)由磁性材料制作,光学膜片(2)靠近背板(1)的表面上固定有磁铁(4),光学膜片(2)通过磁铁(4)吸附于背板(1)上。激光投影屏幕可用于将激光器发出的光线反射至观众眼中。
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: Chinese (ZH)
Filing Language: Chinese (ZH)