A bandpass filter (3a to 3c) allows a light ray of a predetermined band including a wavelength band of a color of a laser beam, which is a target of detection, among light rays from a subject to pass therethrough. An imaging unit of a video camera (2a to 2c) captures the light ray passing through the bandpass filter (3a to 3c). The controller (4a to 4c) analyzes a frequency for each brightness level of a video signal generated based on an imaging signal output from the imaging unit and detects a peak at which the frequency protrudes at a specific brightness level. The controller (4a to 4c) detects a trajectory of a straight light ray in a frame of the video signal. The controller (4a to 4c) detects that the laser beam is irradiated when the peak exists at a specific brightness level and the trajectory of the light ray exists in the frame.


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    Title :

    LASER BEAM IRRADIATION DETECTION DEVICE, LASER BEAM IRRADIATION DETECTION METHOD, AND LASER BEAM IRRADIATION DETECTION SYSTEM


    Additional title:

    LASERSTRAHLBESTRAHLUNGSDETEKTIONSVORRICHTUNG, LASERSTRAHLBESTRAHLUNGSDETEKTIONSVERFAHREN UND LASERSTRAHLBESTRAHLUNGSDETEKTIONSSYSTEM
    DISPOSITIF DE DÉTECTION D'ÉMISSION DE FAISCEAU LASER, PROCÉDÉ DE DÉTECTION D'ÉMISSION DE FAISCEAU LASER ET SYSTÈME DE DÉTECTION D'ÉMISSION DE FAISCEAU LASER


    Contributors:

    Publication date :

    2023-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01S RADIO DIRECTION-FINDING , Funkpeilung / H01S Vorrichtungen, die stimulierte Emission verwenden , DEVICES USING STIMULATED EMISSION



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