Design and fabrication for micro-lens array with high fill factor in integral imaging system

Fan-fei MENG; Jing BU

doi:10.3788/OPE.20172508.2130

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Design and fabrication for micro-lens array with high fill factor in integral imaging system

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-07-07

- Design and fabrication for micro-lens array with high fill factor in integral imaging system
- Optics and Precision Engineering Vol. 25, Issue 8, Pages: 2130-2138(2017)
- 作者机构：
  
  1.深圳大学纳米光子学研究中心, 广东深圳 518060
  2.深圳大学数学与统计学院, 广东深圳 518060
  3.南开大学现代光学所光学信息技术科学教育部重点实验室, 天津 300071
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20172508.2130
  CLC： O439;TN27
- Received：17 February 2017，
  
  Accepted：02 May 2017，
  
  Published：25 August 2017
- 稿件说明：
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Fan-fei MENG, Jing BU. Design and fabrication for micro-lens array with high fill factor in integral imaging system[J]. Optics and precision engineering, 2017, 25(8): 2130-2138.
DOI：

Fan-fei MENG, Jing BU. Design and fabrication for micro-lens array with high fill factor in integral imaging system[J]. Optics and precision engineering, 2017, 25(8): 2130-2138. DOI： 10.3788/OPE.20172508.2130.

摘要

针对目前微透镜设计与加工中存在的问题，本文提出了一种大尺寸、高填充率的微透镜阵列设计与加工方法，并成功应用于基于手机屏幕的三维集成成像显示系统。根据焦面模式下的集成成像原理，建立了透镜阵列参数与集成成像显示关键参数的关系，并设计了高填充率透镜阵列的孔径与焦距。采用超精密铣削方法加工出金属母板，通过纳米压印和图形转移复制的方法，在涂有UV固化胶的PET透明膜上得到了高填充率的微透镜阵列膜，并将其应用于基于手机显示屏的集成成像系统。测试结果表明，在5.7英寸全高清手机屏幕上，直接覆盖孔径为0.526 mm、焦距为2 mm、填充率为100%的透镜阵列，可以实现立体图像出屏距离达4 cm、视场角为12.5°的集成成像显示效果。系统的设计与透镜阵列的制作完全满足集成成像要求，裸眼观看立体图像清晰、逼真，系统集成度高，使用方便。

Abstract

Aimed at current problems in design and fabrication of micro-lens

a kind of design and fabrication method for micro-lens array with large size and high fill factor was introduced. It has been successfully applied to displaying system for 3D integral imaging based on phone screen. According to theory of integral imaging under focal-plane model

relation between parameter for micro-lens array and displaying key parameters of integral imaging was established

and aperture and focal length for lens array film with high fill factor were designed. Metal motherboard was processed by super-precision milling. Micro-lens array with high fill factor was obtained from PET transparent film coated with UV photoresist through nano-imprinting lithography and pattern transfer reproduction

and it was applied to integral imaging system based on phone screen. Test results show that the stereo image out of the screen reaches 4 cm and the viewing angle is 12.5° by covering micro-lens array film with 0.526 mm aperture

2 mm focal length

100% filling ratio on a 5.7 inch full HD phone screen. Test results also show that the design for system and manufacturing of lens array fully satisfy requirements of integral imaging.

关键词

Keywords

references

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