Global Patent Index - EP 3559544 A1

EP 3559544 A1 20191030 - LAYER STRUCTURE WITH SYMBOLS WHICH CAN BE ILLUMINATED, AND USE THEREOF

Title (en)

LAYER STRUCTURE WITH SYMBOLS WHICH CAN BE ILLUMINATED, AND USE THEREOF

Title (de)

SCHICHTAUFBAU MIT BELEUCHTBAREN SYMBOLEN UND DESSEN VERWENDUNG

Title (fr)

STRUCTURE EN COUCHES COMPORTANT DES SYMBOLES POUVANT ÊTRE ÉCLAIRÉS ET SON UTILISATION

Publication

EP 3559544 A1 20191030 (DE)

Application

EP 17822651 A 20171218

Priority

  • EP 16206167 A 20161222
  • LU 100064 A 20170209
  • EP 2017083356 W 20171218

Abstract (en)

[origin: WO2018114828A1] The invention relates to a layer structure (S) for an operating element which can be illuminated, comprising or consisting of the following layers in the specified order: A) a light-guiding flat element (3) into which light can be coupled from a light source (4) via at least one of the abutting edges of the flat element, wherein the light propagates laterally within the light-guiding flat element (3) and is at least partly emitted onto the flat element side facing the symbol layer (1); B) optionally a transparent intermediate layer (2); C) a second symbol layer (1) comprising at least one symbol; and D) optionally a protective layer (6). The invention additionally relates to the production of such a layer structure (S), to a decorative element which can be illuminated and which comprises such a layer structure (S), and to the use of the decorative element and the layer structure (S).

IPC 8 full level

F21V 8/00 (2006.01)

CPC (source: EP)

G02B 6/0043 (2013.01); G02B 6/006 (2013.01); G02B 6/0093 (2013.01)

Citation (examination)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2018114828 A1 20180628; EP 3559544 A1 20191030

DOCDB simple family (application)

EP 2017083356 W 20171218; EP 17822651 A 20171218