The progress in laser technology leads to very compact but nevertheless powerful laser sources. In the visible and near infrared spectral region, lasers of any wavelength can be purchased. Especially continuous wave laser sources pose a serious threat to the human eye and electro-optical sensors due to their high proliferation and easy availability. The manifold of wavelengths cannot be encountered by conventional safety measures like absorption or interference filters. We present a protection concept for electro-optical sensors to suppress dazzling in the visible spectral region. The key element of the concept is the use of a digital micromirror device (DMD) in combination with wavelength multiplexing. This approach allows selective spectral filtering in defined regions of interest in the scene. The system offers the possibility of automatic attenuation of dazzling laser radiation. An anti-dazzle algorithm comprises the analysis of the laser wavelength and the subsequent activation of the appropriate micromirrors of the DMD.


    Access

    Download


    Export, share and cite



    Title :

    Electro-optical sensor with automatic suppression of laser dazzling


    Contributors:

    Conference:

    2012


    Publication date :

    2012



    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Automatic laser glare suppression in electro-optical sensors

    Ritt, Gunnar / Eberle, Bernd | Fraunhofer Publica | 2015

    Free access

    Anti-dazzling structure and anti-dazzling method

    CHEN YAO | European Patent Office | 2023

    Free access

    Dazzling Dubai

    Endres, Günter | Online Contents | 1997


    Laser dazzling analysis of camera sensors

    Özbilgin, Tuğba / Yeniay, Aydın | SPIE | 2018


    Installation method of automatic anti-dazzling rearview mirror

    TONG ZEBIN / LIN BANG / GU FAN | European Patent Office | 2020

    Free access