DEVICE FOR GENERATING A VIRTUAL LIGHT IMAGE

摘要

A device for generating a virtual light image. The device includes a real light source, a curved retroreflector surface, and a semi-transparent mirror. The retroreflector surface is situated so that the light of the real light source transmitted through the semi-transparent mirror does not reach the retroreflector surface. A shape of the retroreflector surface for a given visibility range, at least in a subregion of the area that is essential for the image in the visibility range, is determined by the fact that at each point of the subregion, the pair of a reflection angle A and an optical distance between this point of the subregion of the retroreflector surface and the virtual light image is Pareto-minimal, provided that the subregion of the retroreflector surface does not interrupt primary beams from the real light source to the semi-transparent mirror.

主权项

1. A device (1) for generating a virtual light image (2), including at least one real light source (11), one curved retroreflector surface (12), and one semi-transparent mirror (13) and a light of the real light source (11) transmitted through the semi-transparent mirror (13) not reaching the retroreflector surface (12), the device comprising a shape of the retroreflector surface (12) for a visibility range (3), at least in a subregion of the area (12) essential for the image in the visibility range (3), determined by at each point of the subregion, a pair (A, D) of a reflection angle A and an optical distance D between the point of the subregion of the retroreflector surface (12) and the virtual light image (2) being Pareto-minimal, and the subregion of the retroreflector surface (12) not interrupting primary beams from the real light source (11) to the semi-transparent mirror (13).