Design method of a liquid crystal based computer-generated hologram for freeform surface measurement

被引：0
|
作者：
Hao, Qun [1 ]
Wang, Shaopu [1 ]
Hu, Yao [1 ]
机构：
[1] Beijing Inst Technol, Sch Optoelect, Beijing Key Lab Precis Optoelect Measurement Inst, Beijing 100081, Peoples R China
来源：
2017 22ND MICROOPTICS CONFERENCE (MOC) | 2017年
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Computer-generated hologram (CGH) is an essential component for aspheric and freeform surface measurement in the interferometry. Traditionally, CGH is manufactured by photolithography which is costly and time-consuming. A novel liquid crystal CGH and the design method based on the birefringence properties of LC and photo-alignment technology is presented in this paper. Simulation shows that this is a simple and reliable CGH design method which is appropriate for freeform interferometry test.
引用
收藏
页码：244 / 245
页数：2
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