基于体全息技术的裸眼3D投影系统  

Naked Eye 3D Projection System Based on Volume Holographic Technology

作　　者：王培芳 雷艳桃 佟玲 WANG Peifang;LEI Yantao;TONG Ling(KADMUS Electronics System Co.Ltd.,Beijing,China)

机构地区：[1]北京康特曼电子系统有限责任公司,北京

出　　处：《光电技术应用》2023年第4期20-25,40,共7页Electro-Optic Technology Application

摘　　要：裸眼3D(naked-eye three-dimensional)技术具有多感知性、沉浸感、交互性、构想性的特点,可打破传统显示,让使用者不用戴眼镜就能轻松体验科技的立体影像效果,具备广阔、实用的应用前景。利用激光全息的干涉记录和衍射再现的原理,设计了裸眼3D显示屏的制作光路,使两幅具有不同视差的图像经投影仪投影到全息投影屏,经全息屏的光场调制后分别进入人的左眼和右眼,在人的大脑形成三维立体的显示效果;采用了光致聚合物感光材料作为体全息的记录介质,通过多层薄全息衍射效率的累积,使得体全息的衍射效率达到73.56%以上,最终制作了高分辨率、高能量利用率的裸眼3D投影系统,实现了裸眼3D的展示功能,可应用在广告传媒、数字文创、游戏等多个领域。Naked eye three-dimensional(3D)technology has the characteristics of multi perception,immersion,interaction and conception.It can break the traditional display,so that consumers can easily experience the stereo image effect of technology without wearing glasses,and has a broad and practical application prospect.Based on the principle of laser holographic interference recording and diffraction reproduction,the production light path of the naked eye 3D display is designed to make two images with different parallax through the projector projection to the holographic projection screen,after the holographic screen light field modulation into the left eye and right eye,and form three-dimensional display effect in the human brain.Photopolymer photosensitive material is used as the recording medium of volume hologram.Through the accumulation of diffraction efficiency of multi-layer thin hologram,the diffraction efficiency of bulk holography reaches more than 73.56%.Finally,the naked eye 3D projection system with high resolution and high energy utilization rate is produced to realize the display function of naked eye 3D,which can be applied in the fields of advertising media,digital cultural creation,games and other fields.

关 键 词：体全息 裸眼3D 投影系统 衍射效率 

分 类 号：O436[机械工程—光学工程]