A lighting and/or signaling device, comprising: a light guide adapted to receive a light ray beam to a light outlet wall which creates a lighting portion of the lighting and/or signaling device, at least one LED light source adapted to receive the light beam, transmitted by total internal reflection towards the light outlet wall. The device includes at least one reflector element associated with the light inlet and diffusion wall of the light guide and directly facing the respective extraction elements so as to reflect light towards the light outlet wall. A diffusion layer is arranged to cover the lighting portion on the side of the light outlet wall. The diffusion layer has a differentiated transmission factor according to the light intensity of the incident light rays on the lighting portion so as to obtain a uniform light intensity over the whole lighting portion.
AUTOMOTIVE LIGHTING AND/OR SIGNALING DEVICE
2019-11-14
Patent
Elektronische Ressource
Englisch
IPC: | F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES |