An optical source unit includes a first optical source (11) for emitting a P-polarized light beam (P1), a first detector (11a) for detecting whether the first optical source (11) is normal or abnormal, a second optical source (12) for emitting an S-polarized light beam (S1), a second detector (12a) for detecting whether the second optical source (12) is normal or abnormal, and a light beam combining section (13) including a polarization beam splitter for transmitting the P-polarized light beam (P1) and reflecting the S-polarized light beam (S1) to combine the P- polarized light beam (P1) and the S-polarized light beam (S1) into an output light beam (T1) of the optical source unit (1).


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    Title :

    OPTICAL SOURCE UNIT BY POLARIZED LIGHT BEAMS AND VEHICLE LIGHTING APPARATUS USING THE SAME


    Additional title:

    OPTISCHE QUELLENEINHEIT MIT POLARISIERTEN LICHTSTRAHLEN UND FAHRZEUGBELEUCHTUNGSVORRICHTUNG DAMIT
    SOURCE OPTIQUE À FAISCEAUX DE LUMIÈRE POLARISÉE ET APPAREIL D'ÉCLAIRAGE DE VÉHICULE L'UTILISANT


    Contributors:

    Publication date :

    2020-12-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H01S Vorrichtungen, die stimulierte Emission verwenden , DEVICES USING STIMULATED EMISSION / 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 / 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





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