The invention, which relates to the technical field of head-up display, provides a double-focal-plane HUD system comprising an image generation module, a first polarization module and a reflection polarization module. Wherein the image generation module is used for emitting first light and second light; the first polarization module comprises a first polarization processing unit and a second polarization processing unit, and the first polarization processing unit is used for carrying out polarization processing on the first light; the second polarization processing unit is used for carrying out polarization processing on the second light; the reflection polarization module at least comprises a double-sided reflection element, the double-sided reflection element comprises a front reflection surface and a rear reflection surface, the front reflection surface is subjected to polarization processing so that only the first polarized light can penetrate, and when the first polarized light and the second polarized light enter the reflection polarization module, the first polarized light is reflected from the rear reflection surface; the second polarized light is reflected by the front reflecting surface; the first polarized light and the second polarized light which are reflected are suitable for forming images at two different positions. The defect that a double-focal-plane HUD is large in size and difficult to assemble is overcome.
本发明提供一种双焦面HUD系统,涉及抬头显示技术领域,包括图像产生模块、第一偏振模块和反射偏振模块;其中,图像产生模块用于发出第一光线和第二光线;第一偏振模块包括第一偏振处理单元和第二偏振处理单元,第一偏振处理单元用于对第一光线进行偏振处理;第二偏振处理单元用于对第二光线进行偏振处理;反射偏振模块至少包括双面反射元件,双面反射元件包括前反射面和后反射面,前反射面进行偏振处理以使只有第一偏振光能够透过,当第一偏振光和第二偏振光射入反射偏振模块时,第一偏振光从后反射面反射,第二偏振光被前反射面反射;被反射后的所述第一偏振光和所述第二偏振光适于形成两个不同位置的像。解决了双焦面HUD体积较大难以装配的缺陷。
Double-focal-plane HUD system
一种双焦面HUD系统
2024-11-12
Patent
Electronic Resource
Chinese
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