公开(公告)号：US20140154614A1

公开(公告)日：2014-06-05

申请号：US14131672

申请日：2012-05-24

Applicant: Huazhong University of Science and Technology

Inventor： Xiaolin Xie ,  Haiyan Peng ,  Xingping Zhou ,  Chengfu Zheng ,  Hongwei Ge

IPC: G03H1/20

CPC classification number: G03H1/20 ,  G03H1/0248 ,  G03H1/24 ,  G03H2001/2271 ,  G03H2260/12 ,  G03H2260/33

Abstract: A method for preparing a colorful three-dimensional hologram based on holographic polymer dispersed liquid crystal gratings comprises: first, in a 441.6 nm laser interference field, preparing with holography a holographic master (7) which stores the reflected (or transmitted) light wave information (amplitude and phase) of an object captured; then using an object light (6) to irradiate the holographic master at a Bragg angle to generate a diffraction light (8); and using the diffraction light and a reference light (10) to simultaneously irradiate a holographic base board (9) comprising a photosensitizer, a co-initiator, a monomer capable of free radical polymerization , and a liquid crystal so that, when total optical paths of the two laser beams reaching the holographic base board are equivalent to each other, optical coherence occurs between the two laser beams on the holographic base board, thereby obtaining a colorful three-dimensional hologram based on holographic polymer dispersed liquid crystal gratings from which an image of the captured object can be observed in the sunlight.

Abstract translation: 一种用于制备基于全息聚合物分散液晶光栅的彩色三维全息图的方法，包括：首先，在441.6nm的激光干涉场中，准备全息照相机（7），其存储反射（或透射）的光波信息 （幅度和相位）; 然后使用物体光（6）以布拉格角照射全息原件以产生衍射光（8）; 并且使用衍射光和参考光（10）同时照射包含光敏剂，共引发剂，能够自由基聚合的单体和液晶的全息基板（9），使得当总光路 到达全息基板的两个激光束彼此相等，在全息基板上的两个激光束之间发生光学相干，从而获得基于全息聚合物分散的液晶光栅的彩色三维全息图，图像 可以在阳光下观察被捕获的物体。