Patent ID: 8459849
Filing Date: 2013-06-11
Classification: F21S

Abstract:
1. An optical device, in particular a lighting and/or signaling device, for a motor vehicle, having an optical axis (y-y) and comprising: a source of light; a reflector which is associated with said source of light in order to form a light beam; a rotary assembly which is designed to intercept said light beam, and can be rotated around an axis of rotation between a first lighting position and a second lighting position, said axis of rotation (z) being substantially perpendicular to the optical axis, said rotary assembly comprising at least a first shield and a second shield associated respectively with said first and second lighting positions, in order to create a cut-off of said light beam, said first and second shields each comprising at least one ridge, these ridges being in particular spaced from one another by a predetermined angular distance (A), said rotary assembly additionally being designed to permit progressive transition of the lighting between said first and second lighting positions; and a lens which is disposed on the path of said light beam which has been intercepted by said rotary assembly; wherein said first shield comprises a first ridge and a second ridge and said second shield comprises a first ridge and a second ridge, and during the rotation from said first lighting position towards said second lighting position, firstly said first and second ridges of said first shield are optically active, then to provide said progressive transition, said second ridge of said first shield and said first ridge of said second shield are active, and finally said first and second ridge of said second shield are active.