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1. (WO2018197584) DEVICE FOR BACKLIGHTING A HEAD-UP DISPLAY
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Pub. No.: WO/2018/197584 International Application No.: PCT/EP2018/060639
Publication Date: 01.11.2018 International Filing Date: 25.04.2018
IPC:
G02F 1/1335 (2006.01) ,G02B 19/00 (2006.01) ,G02B 7/188 (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
1333
Constructional arrangements
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
19
Condensers
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
18
for prisms; for mirrors
182
for mirrors
185
with means for adjusting the shape of the mirror surface
188
Membrane mirrors
Applicants:
VALEO COMFORT AND DRIVING ASSISTANCE [FR/FR]; 76 rue Auguste Perret - ZI Europarc 94046 Créteil CEDEX, FR
Inventors:
GIROD, Vincent; FR
GRANDCLERC, François; FR
PETRUCCI, Antoine-Camille; FR
Agent:
DELPLANQUE, Arnaud; FR
Priority Data:
175359825.04.2017FR
Title (EN) DEVICE FOR BACKLIGHTING A HEAD-UP DISPLAY
(FR) DISPOSITIF DE RÉTROÉCLAIRAGE D'AFFICHEUR TÊTE-HAUTE
Abstract:
(EN) The invention concerns a backlighting device (20) for the screen of a head-up display, comprising: - at least one light source (26), - a reflector (22) which extends around the one or more light sources in order to reflect the light emitted by the light sources, and - a diffuser disposed in such a way as to receive at least the light reflected by the reflector. According to the invention, the reflector comprises an improved specular reflective film (24), the inner face of which is disposed in such a way as to reflect the light emitted by the light source or sources.
(FR) L'invention concerne un dispositif de rétroéclairage (20) pour écran d'afficheur tête-haute, comprenant : - au moins une source de lumière (26), - un réflecteur (22) qui s'étend autour de la ou des sources de lumière pour réfléchir la lumière émise par les sources de lumière, et - un diffuseur disposé de manière à recevoir au moins la lumière réfléchie par le réflecteur. Selon l'invention, le réflecteur comporte un film réflecteur spéculaire amélioré (24) dont la face interne est disposée de manière à réfléchir la lumière émise par la ou les sources de lumière.
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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: French (FR)
Filing Language: French (FR)