Plate-shaped optical element for coupling out light

Abstract

A description is given of an optical element (10) having a transparent, plate-shaped optical waveguide (12), having a surface structure having elevations (22) and/or depressions for coupling out light. A transparent cover plate (14) is arranged parallel at a distance from the optical waveguide (12). In order to obtain an element which, firstly, is intended to serve for coupling out light and, secondly, can be used as a transparent element e.g. for a window, a reflection-reducing nanostructure (30) having a plurality of elevations (34) is provided on at least one surface of the cover plate (14) and/or on a surface (20) of the optical waveguide (12).

Dependencies are inferred from the claim text.