悬浮显示技术是一种非常具有发展前景的显示技术,它可以将图像显示在空中,给观看者带来沉浸感和临场感的体验。目前国内悬浮3D显示技术研究还处于初级阶段。文章提出基于集成成像的悬浮3D显示系统,系统由集成成像3D显示器、半透半反镜和逆反光膜组成; 分析了集成成像3D显示的工作原理和逆反光膜的悬浮显示原理。将集成成像3D显示技术与基于逆反光膜的悬浮显示技术相结合,集成成像3D显示器发出的光线经过半透半反镜的反射到达逆反光膜,逆反光膜将光线以入射的角度进行反射并重建出3D图像,在实现3D图像悬浮显示的同时也解决了集成成像3D图像深度反转的问题,但是3D图像的亮度被大幅度的降低。系统为悬浮3D显示提供新的理论依据,为解决集成成像3D图像深度反转提供新的方法。

The floating display is a very promising technology which can display images in the air, giving the viewers immersive and immediate experience. A floating 3D display system based on the integral imaging is proposed, which consists of an integral imaging 3D display, a semi-translucent semi-retroreflective mirror and a retro-reflective film. The working principle of the integral imaging 3D display and the floating display principle of retro-reflective film are analyzed. Therefore, combining the integral imaging 3D display technology with the floating display technology based on a retro-reflective film, the light rays from the integral imaging 3D display will reach the retro-reflective film through the reflection of the semi-transparent and semi-retroreflective mirror, and the retro-reflective film reflects the light at the angle of incidence and reconstructs the 3D image again, which solves the problem of depth inversion of the integral imaging 3D image while realizing the floating 3D image display. The system provides a new theoretical basis for floating 3D displays and a new method for solving the depth inversion of integral imaging 3D images.