by changing the light transmissivity of the refractors, filters or transparent cover plates

Patents Grantslast 30 patents

  • Information Patent Grant

    2571894

    • Patent number 2,571,894
    • Issue date Oct 16, 1951
    • F21 - LIGHTING

Patents Applicationslast 30 patents

  • Information Patent Application

    VEHICULAR HEADLAMP SYSTEM WITH A PHOTOCHROMIC LENS AND A LENS HEATI...

    • Publication number 20180306401
    • Publication date Oct 25, 2018
    • FORD GLOBAL TECHNOLOGIES, L.L.C.
    • Connor I. Robinson
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    VEHICULAR HEADLAMP SYSTEM WITH A PHOTOCHROMIC LENS

    • Publication number 20180306402
    • Publication date Oct 25, 2018
    • FORD GLOBAL TECHNOLOGIES, L.L.C.
    • Connor I. Robinson
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    LIGHT-EMITTING DEVICE

    • Publication number 20180029523
    • Publication date Feb 1, 2018
    • Nichia Corporation.
    • Satoshi SHICHIJO
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    LIGHT EMITTING MODULE

    • Publication number 20170321863
    • Publication date Nov 9, 2017
    • LG Innotek Co., Ltd.
    • Ki Soo KWON
    • F21 - LIGHTING
  • Information Patent Application

    HEADLAMP FOR VEHICLE

    • Publication number 20160377251
    • Publication date Dec 29, 2016
    • LG ELECTRONICS INC.
    • Geunhyeong KIM
    • B60 - VEHICLES IN GENERAL