LUMINOUS ELEMENT, PROCESS AND SYSTEM FOR MAKING IT AND CORRESPONDING DEVICES OBTAINED WITH SAID ELEMENT

摘要

The present invention concerns a luminous element comprising a surface to be lit (3) and a substrate (4) with a groove having one or more side walls (4si) that extend in the direction of the thickness of the substrate thus defining a cavity. The light emitting means (2) rest against one of the walls (4si) and emit light mostly towards the inside of the cavity (IV). The invention concerns also a process and a system for making said luminous element, and the corresponding devices made using the same element.