CPC G02B 6/0068 (2013.01) [G02B 6/0036 (2013.01); G02B 6/4214 (2013.01); G02B 27/0961 (2013.01); G02B 27/0972 (2013.01)] | 15 Claims |
1. A window pane comprising a light deflecting device, the light deflecting device comprising:
a flat, transparent light guide, and
a transparent cover layer which is applied to the light guide in a flat manner at least partially,
wherein a microstructure is formed between the light guide and the cover layer for outcoupling light incoupled into the light guide and wherein the microstructure comprises a plurality of structural elements which are formed as circular cylindrical elevations, wherein the microstructure is formed on the surface of the cover layer facing the light guide, wherein the angle included by the height and the cross-sectional diagonal of the structural elements is smaller than or equal to the critical angle of the total reflection in the light guide and/or the cover layer, wherein the circular surfaces of the circular cylindrical elevations lie directly on the surface of the light guide, wherein the circular cylindrical elevations each have a diameter of at least 20 μm and at most 100 μm and a height of at least 20 μm and at most 10 μm, and wherein the structural elements are designed in such a way that light coupled into the light guide is substantially outcoupled at the cylinder lateral surfaces of the structural elements.
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