The purpose of the present invention is to provide a light-transmissive cover capable of easily suppressing the heat input from the sun to a display part in a head-up display device without the need for an expensive member while preserving the luminance of an image projected from the display part. A light-transmissive member used for the head-up display device is formed of a resin composition comprising a polycarbonate-based resin and is characterized by having a thickness within the range of 0.2-0.6 mm, containing composite tungsten oxide particles as an infrared shielding agent, and satisfying the following expression (1): 0.02<= A x B <= 0.12, where A(wt%) represents the content of composite tungsten oxide particles and B(mm) represents the thickness of the layer containing the composite tungsten oxide particles.

    本发明的目的在于提供一种即便不使用昂贵的部件也简便地抑制从太阳向平视显示器的显示器的热输入、而且不损害由显示器投影的图像的亮度的透光罩。本发明是一种用于平视显示器装置的透光部件,其特征在于,由聚碳酸酯系树脂构成的树脂组合物形成,厚度在0.2~0.6mm的范围,透光部件中含有复合氧化钨粒子作为红外线屏蔽剂,复合氧化钨粒子含量A(重量%)和含有复合氧化钨粒子的层的厚度B(mm)满足下述式(1)。(式(1)为0.02≤A×B≤0.12。)


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    Titel :

    Head-up display device and light-transmissive member used therefor


    Weitere Titelangaben:

    平视显示器显示装置和用于该平视显示器显示装置的透光部件


    Beteiligte:
    MASAOKA KOICHI (Autor:in) / KUBO KYOICHI (Autor:in)

    Erscheinungsdatum :

    10.04.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS



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