A light source module includes a ring light guide, at least one light source, a reflector, and a diffuser. The ring light guide includes a ring body and at least one light incident portion. The ring light guide has a light exit surface and a bottom surface, which are two opposite ring surfaces of the ring body. The ring body has a plurality of optical structures disposed along the ring body. The at least one light incident portion is disposed on the ring body and protrudes from a lateral side of the ring body. The light incident portion has a light incident surface, wherein a plane where the light incident surface lies crosses a plane where the light exit surface lies.
Ring light guide and light source module
20.09.2022
Patent
Elektronische Ressource
Englisch
IPC: | F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / 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 |