The visibility of a mark drawn on a road surface is improved, and a high-attention calling function for passengers, pedestrians and the like of other vehicles is achieved. In a drawing device (1) for a vehicle that draws a mark (10) on a road surface (200) using amber light, when the brightness of the mark is used as the road surface drawing brightness and the brightness in the surroundings of a traveling vehicle is used as the background brightness, the background brightness is used as the background brightness. Amber light is irradiated such that the brightness contrast calculated from the road surface drawing brightness and the background brightness becomes 0.2 or more. As a result, since the brightness contrast of the road surface drawing brightness with respect to the background brightness is increased, the visibility of the sign drawn on the road surface is improved, and a function of highly avoking passengers, pedestrians, and the like of other vehicles can be exhibited.
提高在路面上描绘的标志的可视性,发挥对其他车辆的搭乘者、行人等的高注意唤起功能。在利用琥珀色的光在路面(200)上描绘标志(10)的车辆用描绘装置(1)中,在将标志的亮度作为路面描绘亮度、将行驶中的车辆的周边环境中的亮度作为背景亮度时,以根据路面描绘亮度和背景亮度计算出的亮度对比度成为0.2以上的方式照射琥珀色的光。由此,由于路面描绘亮度相对于背景亮度的亮度对比度变高,因此在路面上描绘的标志的可视性提高,能够发挥对其他车辆的搭乘者、行人等的高注意唤起功能。
Drawing device for vehicle
车辆用描绘装置
2022-04-26
Patent
Elektronische Ressource
Chinesisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |