基于雾屏和空间光调制器的全息三维显示  

Holographic Three-dimensional Display Based on Mist Screen and Spatial Light Modulator

作　　者：周文[1] 高洪跃 刘吉成[1] 李苏娜 戴泽航 陈小茜 方慧林 Zhou Wen;Gao Hongyue;Liu Jicheng;Li Suna;Dai Zehang;Chen Xiaoxi;Fang Huilin

机构地区：[1]上海大学机电工程与自动化学院

出　　处：《计量与测试技术》2019年第6期5-8,共4页Metrology & Measurement Technique

基　　金：国家自然科学基金项目(项目编号:61235002,11004037和11474194);上海市自然科学基金项目(项目编号:14ZR1415500)

摘　　要：长期以来,人们为实现理想的显示效果已经付出了不懈的努力。传统的立体三维显示技术大多利用人眼的双目视差或者视觉暂留效应来表现出三维效果,它不会产生物理景深,因此缺乏真正的三维感。本文主要研究了一种真三维全息技术,采用雾屏来承接空间光调制器所衍射出来的全息三维图像。主要工作有:首先建立三维模型,然后生成三维模型各个视角的强度信息图和深度信息图,再由强度信息图和深度信息图生成全息图。接下来将全息图加载到空间光调制器上,将衍射出来的全息三维图像承载在雾屏上。For a long time,people have made unremitting efforts to achieve the ideal display effect in the field of three-dimensional display.Traditional stereoscopic three-dimensional display technology mostly uses the binocular parallax or visual persistence effect of the human eye to express the three-dimensional effect,which does not produce physical depth of field,and thus lacks a true three-dimensional sense.In this paper,a true three-dimensional holographic technique is studied,which adopts a fog screen to undertake the holographic three-dimensional image diffracted by the spatial light modulator.The main work includes:firstly establishing a three-dimensional model,then generating an intensity information map and a depth information map of each perspective of the three-dimensional model,and then generating a hologram from the intensity information map and the depth information map.Next,the hologram is loaded onto the spatial light modulator,and the diffracted holographic three-dimensional image is carried on the fog screen.

关 键 词：全息 三维显示 雾屏 空间光调制器 

分 类 号：O438.1[机械工程—光学工程]