一种计算全息图真彩色显示的方法  

A method of computer-generated hologram′s real color display

作　　者：刘素娟[1] 王琼华[1] 徐小清[1] 李大海[1] 

机构地区：[1]四川大学电子信息学院,四川成都610065

出　　处：《光电子．激光》2012年第11期2184-2188,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61036008)资助项目

摘　　要：为使用简单集成的光学系统完成高质量的真彩色全息显示,提出一种白光再现单幅计算全息图实现真彩色显示的方法。首先利用计算机图形学对彩色场景进行红绿蓝分色处理,采用博奇编码方式对处在同一位置处的不同颜色场景信息分别进行记录,制作3幅菲涅尔全息图。然后,基于三基色彩色显示的原理和全息图的记录再现特性,将3幅编码图按特殊结构合成一幅全息图进行再现。最后设计一个具有像素结构的滤光片,即可实现白光LED真彩色全息显示。通过实验,验证了本文方法的可行性。It＇s a problem of three-dimensional display using a simple and integrated optic system to realize real color holographic display. This paper proposes a method to achieve real color display using the white light and a piece of computer-generated hologram. We implement color separation about the color scene for red, green and blue components using computer graphics and make three Fresnel holograms. These holograms separately recode the information of three monochrome components of the color scene by Burch coding. Based on the tricolor theory and holograms＇ recoding and reconstruction characteristics, we synthesize a piece of hologram with special structure to reconstruct three gresnel holograms. A filter which has a pixel structure is designed. And the filter can realize white LED real color holographic dis play. The experimental results verify the feasibility of the proposed method.

关 键 词：全息 计算全息图 真彩色再现 分色 菲涅尔全息 

分 类 号：O438.1[机械工程—光学工程]