An automotive headlamp that utilizes a lightguide to form light into a desired output shape and illumination pattern. The headlamp is comprised of a light emitting source, and a lightguide. The lightguide is able to create a hot spot, and a horizontal cut-off in the illumination pattern. The cut-off is formed at the exit face of the lightguide. A cut-off facet angled from the exit-face of the lightguide is used to help with obtaining a sharp cut-off.
Lightguide headlamp
2020-08-25
Patent
Electronic Resource
English
IPC: | F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / 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 / F21Y Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED |