| 摘要 |
The invention relates to an optical device comprising at least: (a) a collector (5) of light energy from an external light source; (b) a transparent plate (1) arranged between said external light source and said collector, including a first surface positioned towards said external light source and made up of a first array (1a) of elementary dioptres (6), and a second surface positioned towards said collector and made up of a second array (1b) of elementary dioptres (7); (c) a plurality of reflectors (2) capable of redirecting, by specular reflection and regardless of the angle of incidence, all or part of the light emitted by said external light source and which passes through said first array (1a) of elementary dioptres (6) towards said second array (1b) of elementary dioptres (7); and (d) an image made up of pixel zones (3). Said device is characterised in that said reflectors (2) are arranged such that the incident light, for a first range of angles of incidence with the plane of the first array (1a) of elementary dioptres (6) and after optional reflection on said reflectors (2), reaches said collector (5), and in that for another range of angles of incidence with the plane of the first array (1a) of elementary dioptres (6) and after optional reflection on said reflectors (2), reaches said pixel zones (3) of the image. |
