Provided is a light guide device that can provide transmission illumination with uniform brightness irrespective of distance from an entry portion. Light emitted from a light source (24, 25) enters via an entry portion (22, 23) of a light guide portion (light guide material)(20) formed of a light transmitting material along an outer edge portion (30r) of a decorative portion (30), and advances while being repeatedly totally reflected by inner surfaces of the light guide portion (20). In a light guiding portion (26), the light is guided from the inside of the light guide portion (20) into the decorative portion (30), which is made of a light transmitting material. The light is further scattered inside the decorative portion (30) and discharged outside, while in a non-light guiding portion (28), the light advancing inside the light guide portion (20) is not permitted to advance into the decorative portion (30).


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    Title :

    Light guide device


    Contributors:

    Publication date :

    2015-06-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G09F DISPLAYING , Anzeigewesen



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