The present invention, to achieve this purpose, is equipped with an infra-red emitting unit; an infra-red receiving unit that is installed inside a lens and receives infra-red reflected from the infra-red emitting unit; a CDS sensor installed inside a lens and which measures visible light to compensate the emitting output of the infra-red emitting unit, and; a heater that is installed in the lens and which is supplied power to generate heat, and is characterized in that the lens has a gentle curvature, with ceramic-coated coil securing grooves formed on the inside of the lens along its inside surface, with heater coils installed by inserting in the coil securing grooves.


    Access

    Download


    Export, share and cite



    Title :

    SNOW REMOVING APPARATUS OF LED TRAFFIC SIGNAL LIGHT


    Contributors:
    KOO JEA H (author)

    Publication date :

    2019-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H05B ELECTRIC HEATING , Elektrische Heizung



    SNOW REMOVING APPARATUS OF LED TRAFFIC SIGNAL LIGHT

    KOO JEA HEON | European Patent Office | 2019

    Free access

    Snow removing apparatus of LED traffic signal light

    KOO JEA H | European Patent Office | 2020

    Free access

    SNOW REMOVING DEVICE FOR LED TRAFFIC SIGNAL LIGHT

    KOO JEA HEON | European Patent Office | 2017

    Free access

    TRAFFIC SIGNAL LIGHT SNOW MELTING UNIT

    ABE SHINYA / TODA TSUTOMU | European Patent Office | 2019

    Free access

    TRAFFIC SIGNAL SNOW SHIELD

    BICHON CHRISTOPHER N | European Patent Office | 2022

    Free access