Patent ID: 11906774
Assignee: TACTOTEK OY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 25:
26. The structure of claim 6, further comprising:
in the optical path from at least one light source of the plurality of light sources towards the exterior of the structure and at the surface of or subsequent to the plastic layer, at least one element selected from the group consisting of:
optical print layer, coating or film comprising opaque or translucent material relative to the light emitted by at least one light source of the number of light sources, optical mask, dented surface such as the surface of the plastic layer, a layer of optically at least translucent if not transparent material with a refractive index lower than that of optically subsequent, adjacent material such as air, layer of alternating higher and lower refractive index materials, perforated, holey or otherwise locally thinned or through-cut layer of opaque material, and adhesion promoting primer.