An object of the present invention is to provide a light-transmissive cover, which does not deteriorate luminance of images projected from a display unit, while easily suppressing heat input from the sun into the display unit of a head-up display without using an expensive member. The present invention is a light-transmissive member for use in a head-up display device, and the light-transmissive member is formed of a polycarbonate-based resin composition, has a thickness in a range of 0.2 to 0.6 mm and contains composite tungsten oxide particles as an infrared ray shielding agent, wherein a content of the composite tungsten oxide particles, A (weight %), and a thickness of a layer containing the composite tungsten oxide particles, B (mm), satisfy the following formula (1):0.02≤A×B≤0.12.


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    Title :

    HEAD-UP DISPLAY DEVICE AND LIGHT-TRANSMISSIVE MEMBER USED THEREFOR


    Additional title:

    HEAD-UP-ANZEIGEVORRICHTUNG UND LICHTDURCHLÄSSIGES ELEMENT DAFÜR
    DISPOSITIF D'AFFICHAGE TÊTE HAUTE ET ÉLÉMENT TRANSMETTANT LA LUMIÈRE UTILISÉ POUR CELUI-CI


    Contributors:

    Publication date :

    2023-11-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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