An LED (light emitting diode) traffic light includes a circuit board, a plurality of LEDs, and a masking plate. The masking plate has a plurality of through-holes. The masking plate is provided such that a back side of the masking plate faces a front side of the circuit board and the plurality of through-holes corresponds to the plurality of LEDs. The masking plate has a plurality of protruding ridges on a front side of the masking plate. Each of the plurality of protruding ridges has an upward facing inclined surface that slants downward at a first angle and a downward facing inclined surface that slants upward at a second angle larger than the first angle. The plurality of protruding ridges include a first ridge and a second ridge. The first angle of the first ridge is different from the first angle of the second ridge.


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    Titel :

    Light emitting diode traffic light


    Beteiligte:

    Erscheinungsdatum :

    2015-06-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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