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1. (WO2019049169) WRITABLE-PROJECTABLE GLASS SURFACES
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Pub. No.: WO/2019/049169 International Application No.: PCT/IN2018/050569
Publication Date: 14.03.2019 International Filing Date: 04.09.2018
IPC:
C03C 12/00 (2006.01)
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
12
Powdered glass; Bead compositions
Applicants:
JAIN, Kamiya; IN (US)
SAINT-GOBAIN GLASS FRANCE [FR/FR]; 18, Avenue D'alsace 92400 Courbevoie, FR
Inventors:
JAIN, Kamiya; IN
ROY, Biplab Kumar; IN
Agent:
KUMAR, Giriraj; IN
Priority Data:
20174103155506.09.2017IN
Title (EN) WRITABLE-PROJECTABLE GLASS SURFACES
(FR) SURFACES DE VERRE INSCRIPTIBLES PROJETABLES
Abstract:
(EN) A writeable-projectable glass board (100) comprising a glass substrate (110) provided with a light-diffusion coating (140) on one surface (120) and a matte surface (150) on the other surface (130) is provided. An air-gap (160) is defined between the surface of the glass substrate (130) and matte surface (160). The light-diffusion coating (140) provides excellent writability, erasability and hot-spot (glare) free sharp projection of images. The matte surface (150) reduces the halo image formation and thereby enhances projection sharpness. The air-gap (160) provides visibility of the projected images with high quality from wide angle of view.
(FR) La présente invention concerne un panneau de verre (100) inscriptible projetable qui comprend un substrat de verre (110) pourvu d'un revêtement de diffusion de lumière (140) sur une surface (120) et d'une surface mate (150) sur l'autre surface (130). Un entrefer (160) est défini entre la surface du substrat en verre (130) et la surface mate (160). Le revêtement de diffusion de lumière (140) fournit une excellente aptitude à l'écriture, une excellente capacité d'effacement et une projection des images nette et sans éclat (reflet). La surface mate (150) réduit la formation d'image en halo et améliore ainsi la netteté de projection. L'entrefer (160) fournit une visibilité des images projetées avec une qualité élevée à partir d'un grand angle de vision.
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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: English (EN)
Filing Language: English (EN)