Provided is a head-up display system and a transportation machine including the head-up display system, the head-up display system including a windshield glass having a selective reflection layer and a projector including laser light sources of three colors of blue light, green light, and red light for forming a projection image on the windshield glass,in which the selective reflection layer includes the following selective reflection central wavelengths λB, λG, and λR at a light incidence angle of 60°,400nm≤λB<500nm500nm≤λG<600nm600nm≤λR<700nmall of XB/XG, XB/XR, and XG/XR are in a range of 0.80 to 1.20.In the above, XB=RB×LB, XG=RG×LG, and XR=RR×LR.RB, RG, and RR indicate a natural light reflectivity at λB, λG, and λR, and LB, LG, and LR indicate the brightness of blue, green, and red laser beam emitted from the projector.
HEAD-UP DISPLAY SYSTEM AND TRANSPORTATION MACHINE
2024-06-27
Patent
Electronic Resource
English
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