The invention provides a vehicle-mounted holographic display device, and the device comprises an image projection device which is used for generating a real image and generating a laser beam; the at least one processing module is located on one side of the image projection device and comprises a light splitting unit, and the light splitting unit is used for carrying out light splitting processing on the laser beams and generating a first light path and a second light path; the reflection unit is located on one side of the processing module and receives the first light path; the imaging lens is located on a propagation path of the first light path and the second light path, and the imaging lens converts a real image into an amplified virtual image; wherein the lengths of the optical paths of the first optical path and the second optical path are the same, and the first optical path and the second optical path contain the same wavefront information. The problem that an existing head-up display is small in visual range can be effectively solved.
本发明提供一种车载全息显示装置,图像投射装置,其用于产生实像,并生成激光光束;至少一个处理模块,是位于所述图像投射装置一侧,其包括分光单元,所述分光单元用于将所述激光光束进行分光处理,并生成第一光路以及第二光路;反射单元,是位于所述处理模块一侧,并接收所述第一光路;以及成像透镜,是位于所述第一光路和所述第二光路的传播路径上,且所述成像透镜将实像转换为放大虚像;其中所述第一光路和所述第二光路的光程的长度相同,且所述第一光路和所述第二光路包含相同的波前信息。本发明可有效改善现有的抬头显示器可视范围小的问题。
Vehicle-mounted holographic display device
一种车载全息显示装置
2022-07-05
Patent
Electronic Resource
Chinese
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