Computer-generated hologram for high resolution projection on curved surface based on non-uniform sample

被引：0
|
作者：
Cai W. [1 ]
Li J. [1 ]
Jiang H. [1 ]
Sun X. [1 ]
Yang R. [1 ]
Yin S. [1 ]
机构：
[1] Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2019年 / 48卷 / 05期
关键词：
Computer-generated hologram; High resolution; Non-uniform sample; Projection on curved surface;
D O I：
10.3788/IRLA201948.0524004
中图分类号：
学科分类号：
摘要：
Projection on curved surface has important applications in display and photolithography. A phase retrieval algorithm, using non -uniform sample, was presented for high resolution projection on curved surface based on the Rayleigh-Sommerfeld Integral. The high spatial frequency means large diffraction angle was incorporated into the design, so that the imaging resolution of projection could be improved effectively. The discrete sampling method was established for the diffraction surface and the imaging surface. Then the theoretical equation of limit resolution was given. Finally diffraction optical elements were designed for projection on cylindrical surface with the diffraction pattern of grid, in order to verify the phase retrieval theory. The results show that reconstructed projecting image matches well with the target image, and the resolution is in agreement with theoretical prediction. © 2019, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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