摘要
提出一种实现三维显示的新方法,从两步法彩虹全息基本原理出发,通过分区域分幅的方式对多视角图形的波前进行数字化编码,获得夫琅和费光场分布,在位相型硅基液晶空间光调制器上按视角顺序输入该信息,利用透镜的傅里叶变换特性再现多视角子图像,干涉法逐区域拼接获得完整三维图像.最后通过实验获得了三维图像样品,验证了该方法.本方法可成为三维显示的重要技术手段.
A new method of making three-dimensional hologram is presented.On the basic principle of two-step rainbow holography,we obtain the Fraunhoer phase information of three-dimensional object by digital coding the wave front of multi visual angle images.Such images are divided into small blocks and coding individually.In the experiments,the phase information of blocks was inputted into phase only liquid crystal on silicon spatial light modulator,the voxel image was reconstructed at the focal plane of fourier lens with laser ilumination and recoded with interference on photoresists.The whole three-dimensional image was obtained by matrix stitching voxel images.The results proved this mehtod.It will be an important technology of three-dimensional display.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2010年第7期1268-1271,共4页
Acta Photonica Sinica
基金
江苏省科技支撑计划(BE2009048)资助
关键词
三维全息
位相提取
数字化
硅基液晶
Three dimensional hologram
Phase extraction
Digital
Liquid crystal on silicon（LCoS）
