一种抬头显示玻璃、系统、车辆及其设计方法
By designing a multi-layered holographic reflector structure in the head-up display glass, the problem of sunlight backflow was solved, achieving a low-cost and stable head-up display effect, and avoiding damage to the image generation device and reduction in clarity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FAW VOLKSWAGEN AUTOMOTIVE CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-17
AI Technical Summary
In existing head-up display technology, external sunlight passes through the windshield and overlaps with the imaging beam path, causing sunlight backflow, which damages the image generation device and optical components. Furthermore, the coating solution is costly and prone to wear and aging.
Design a head-up display glass with a multi-layer reflector holographic structure. The inner side of the first reflector holographic structure is used for converging imaging, while the outer reflector holographic structure is used for reflecting sunlight. The incident angle ranges are designed to be unequal and non-overlapping, so as to realize the reflection and diffraction of sunlight to the outside of the glass.
It effectively prevents sunlight backflow, reduces costs, has a simple structure, requires no regular maintenance, and ensures the stability and clarity of the image generation device.
Smart Images
Figure CN120779602B_ABST