采用低分辨率空间光调制器的大尺寸高像质空中三维立体成像  

Large size high quality 3D imaging in the air using low resolution spatial light modulators

作　　者：李志扬[1] Havyarimana Claver 李亚兰[1] 

机构地区：[1]华中师范大学物理科学与技术学院,武汉430079

出　　处：《吉林大学学报（工学版）》2013年第S1期459-462,共4页Journal of Jilin University:Engineering and Technology Edition

摘　　要：采用低分辨率空间光调制器基于数字光学位相共轭原理设计了一套三维立体相干成像系统。该系统通过一个绝热锥形单模光波导束直接对物光进行分解和数字重建,并利用光路可逆性原理消除了传统光学透镜系统的像差和景深限制,可实现大范围、大视角空中立体成像,无论屏幕前的立体实像和屏幕后的立体虚像都可象观看真实物体一样多人同时观看。计算表明在屏幕前方0.1～10 m范围内,图像分辨率可以达到1～112μm。A coherent imaging system for large size high quality 3D display in the air employing low resolution spatial light modulators was introduced.It decomposed and reconstructed optical wave-fronts based on digital optical phase conjugation using an adiabatic taper consisting of a large number of single-mode waveguides.Due to reciprocity of an optical path it canceld automatically the aberrations inherent in traditional optical lens systems and provided very large field depth.Real 3D images could be formed in front of the screen,while virtual 3D images could be created behind the screen.All of the 3D images could be watched at the same time by many observers with naked eyes.As the calculation show the imaging resolution could vary from 1 to 112 micrometers when 3D images are formed at a distance from 0.1 to 10 m in front of the screen.

关 键 词：信息光学 三维立体显示 数字光学位相共轭 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]