The invention discloses a reflective vehicle-mounted head-up display system which comprises an image generation unit, a gradient refractive index lens, a reflector and a front windshield. The system is located right in front of a driver's seat and below a front windshield. The image generation unit is responsible for generating an original image, emitted light passes through the gradient refractive index lens, is subjected to direction modulation through the gradient refractive index lens and then is projected to a front windshield of an automobile through the reflector, finally the light is reflected by the windshield to enter human eyes, and a virtual image is formed at a fixed distance in front of driving of the automobile. Therefore, the driver can obtain the real-time driving information of the vehicle without lowering the head, the visual fatigue caused by switching the visual field back and forth is avoided, and the driving safety is guaranteed. The gradient refractive index lens is used as an intermediate optical element to design the vehicle-mounted head-up display system, and compared with a traditional vehicle-mounted head-up display system based on a free-form surface, the vehicle-mounted head-up display system has the advantages of being small in optical size, high in space utilization rate and good in imaging quality and can be applied to various vehicle types.
本发明公开了一种反射式车载抬头显示系统,包括图像生成单元、梯度折射率透镜、反射镜、前挡风玻璃。系统位于驾驶座正前方、前挡风玻璃下方位置。图像生成单元负责产生原始图像,发出光线经过梯度折射率透镜,通过梯度折射率透镜进行方向调制后,经由反射镜投影至汽车前挡风玻璃上,最后光线经由挡风玻璃反射进入人眼,在汽车行驶前方固定距离处成虚像,使驾驶员在不低头的情况下获取车辆的实时驾驶信息,避免了来回切换视野导致的视觉疲劳,保障了行车安全。本发明采用梯度折射率透镜作为中间光学元件设计车载抬头显示系统,相比于传统的基于自由曲面的车载抬头显示系统具有着光学体积小、空间利用率高、成像质量好的特点,可应用于各种车型中。
Reflection-type vehicle-mounted head-up display system
一种反射式车载抬头显示系统
14.05.2024
Patent
Elektronische Ressource
Chinesisch
Vehicle-mounted head-up display film and vehicle-mounted head-up display system
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