An acousto-optic modulator system for protecting a photoreceptor from an incident laser beam from a laser source includes a transducer array that is connected to a glass portion. The glass portion is arranged in a predicted path of the laser beam between the laser source and the photoreceptor. An electronic control unit ("ECU") selectively energizes the transducer array and causes the transducer array to emit sound pressure waves into the glass portion. The sound pressure waves have predetermined oscillation characteristics that change a refractive index of the glass portion to diffract the beam. A camera system includes the transducer array, the ECU, and a camera having an image sensor and an external lens positioned in the predicted path. A host aircraft includes the photoreceptor, fuselage, one or more wings, the glass portion, the transducer array, and the ECU.


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    Title :

    ACOUSTO-OPTIC MODULATION FOR PHOTORECEPTOR PROTECTION


    Additional title:

    AKUSTOOPTISCHE MODULATION ZUM SCHUTZ EINES PHOTOREZEPTORS
    MODULATION ACOUSTO-OPTIQUE POUR LA PROTECTION DES PHOTORECEPTEURS


    Contributors:

    Publication date :

    2024-08-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / B64C AEROPLANES , Flugzeuge



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