The invention relates to a lighting unit (1) for a headlight, in particular a motor vehicle headlight, comprising a plurality of light sources (2), a light guide unit (3) having a plurality of light guides (30) and a downstream projection lens (4), wherein each light guide (30) has a light decoupling face (30a), and wherein each light source (2) couples light precisely into a light guide (30) associated therewith, and wherein adjacent light guides (30) are separated from one another by partition walls (31, 32). In accordance with the invention, at least one diaphragm element (5) is arranged between the light guide unit (3) and the projection lens (4), which diaphragm element (5) has apertures (50) separated from one another by aperture partition walls (51, 52), wherein the diaphragm element (5) is arranged in such a way that an aperture (50) is arranged to the front of each light decoupling face (30a), and wherein the apertures (50) correspond substantially in terms of shape and size to the light decoupling faces (30a) associated therewith, and wherein, on the faces (5a) of the at least one diaphragm element (5) facing away from the light guide unit (3), at least part of the aperture partition walls (51, 52) has a smaller wall thickness (b) than the partition walls (31, 32) of the light guide unit (3) associated with the respective aperture partition walls (51, 52).


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    Titel :

    Light-emitting unit for a projector lamp


    Beteiligte:
    GÜRTL JOSEF (Autor:in) / PLANK JOSEF (Autor:in)

    Erscheinungsdatum :

    13.10.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21W Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend den Gebrauch oder Einsatz von Leuchten oder Beleuchtungssystem , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K,  F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS / 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 / 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



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