The invention provides an optical system for a double-focal-plane head-up display system, and relates to the technical field of head-up display. The first polarization processing module comprises a first near-focus polarization unit and a first far-focus polarization unit; the reflection module is used for reflecting the first polarized light and the second polarized light; the second polarization processing module comprises a second near-focus polarization unit and a second far-focus polarization unit; the optical zoom module is located at any position on a light propagation path between the first polarization processing module and the second polarization processing module, and the optical zoom module is used for carrying out zoom processing on at least one of the first polarized light and the second polarized light; the first polarized light is suitable for forming a near-focus virtual image at a first near-focus position outside the windshield or forming a near-focus real image at a second near-focus position inside the windshield, and the second polarized light is also suitable for forming a far-focus virtual image at a far-focus position outside the windshield. The double-focal-plane display device has the advantages of achieving the double-focal-plane display effect and being miniaturized at the same time.
本申请提供一种用于双焦面抬头显示系统的光学系统,涉及抬头显示技术领域,图像产生单元;第一偏振处理模块,包括第一近焦偏振单元和第一远焦偏振单元;反射模块,用于对第一偏振光和第二偏振光进行反射;第二偏振处理模块包括第二近焦偏振单元和第二远焦偏振单元;光学变焦模块,位于第一偏振处理模块与第二偏振处理模块之间光线传播路径上的任意位置,光学变焦模块用于对第一偏振光和所述第二偏振光二者至少之一进行变焦处理,以使得第一偏振光适于在风挡外的第一近焦位置形成近焦虚像或在风挡内的第二近焦位置形成近焦实像,还使得第二偏振光在风挡外的远焦位置形成远焦虚像。本申请具有实现双焦面的显示效果的同时还具有小型化的特点。
Optical system, double-focal-plane head-up display system and vehicle
一种光学系统、双焦面抬头显示系统及车辆
2024-11-12
Patent
Electronic Resource
Chinese
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