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.
HEAD-UP DISPLAY DEVICE AND LIGHT-TRANSMISSIVE MEMBER USED THEREFOR
HEAD-UP-ANZEIGEVORRICHTUNG UND LICHTDURCHLÄSSIGES ELEMENT DAFÜR
DISPOSITIF D'AFFICHAGE TÊTE HAUTE ET ÉLÉMENT TRANSMETTANT LA LUMIÈRE UTILISÉ POUR CELUI-CI
2023-11-29
Patent
Electronic Resource
English
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