The present invention describes a device developed and adapted to combine light beam sources, with particular application on optical sensors for contactless determination of road states, resorting to the use of multiplexed volume Bragg gratings to achieve coaxial spectral beam combining. The herein disclosed road condition sensor comprises a set of laser emitting diodes, configured to emit corresponding independent laser beams; and a MVBG, arranged inside of an enclosure along with the set of laser emitting diodes. The sensor is characterized by the emitted laser beams being oriented so as to focus on a central position of the MVBG, which will promote the reflection of an MVBG combined output laser beam (15) towards a shaping element (20) which is adapted to channel a resulting shaped combined beam (23) towards an existing target outside of the enclosure.


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    Title :

    OPTICAL BEAM COMBINER ROAD CONDITION SENSOR


    Additional title:

    STRASSENZUSTANDSSENSOR MIT OPTISCHEM STRAHLVEREINIGER
    CAPTEUR D'ÉTAT DES ROUTES À COMBINEUR DE FAISCEAUX OPTIQUES



    Publication date :

    2024-05-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



    OPTICAL BEAM COMBINER ROAD CONDITION SENSOR

    MONTEIRO PEREIRA ANDRÉ AGOSTINHO / COSTA CERQUIDO MÓNICA CATARINA / ANTUNES DE CARVALHO ALBUQUERQUE ANDRÉ et al. | European Patent Office | 2023

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