| abstract |
The invention relates to a glazing unit for a viewing device (1), said glazing unit including an assembly comprising at least: a first outer transparent sheet (4) and a second inner transparent sheet (6), each comprising an outer face and an inner face, said glass sheets being interconnected by a spacer (2) made from a thermoformable material or by a multilayer sheet incorporating such a spacer; a protection layer (5) made from an opaque material in contact with the inner face of the first outer sheet; a masking layer (7) made from an opaque material in contact with the inner face of the second inner sheet, said masking layer comprising openings (8) forming pictograms (11); and a uniform layer of a material doped with luminescent species chosen to absorb light radiation produced by the source (3a, 3b) of radiation in the UV or IR range and to re-emit light radiation in the visible range, said uniform layer being disposed in the glazing unit between the masking layer (7) and the protection layer (5). |