Volume 12 Issue 1
Feb.  2019
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Article Contents
FENG Si-yue, LIANG Jing-qiu, LIANG Zhong-zhu, LV Jin-guang, TAO Jin, WANG Wei-biao, QIN Yu-xin, MENG De-jia. Design of projection system for a micro-LED array[J]. Chinese Optics, 2019, 12(1): 88-96. doi: 10.3788/CO.20191201.0088
Citation: FENG Si-yue, LIANG Jing-qiu, LIANG Zhong-zhu, LV Jin-guang, TAO Jin, WANG Wei-biao, QIN Yu-xin, MENG De-jia. Design of projection system for a micro-LED array[J]. Chinese Optics, 2019, 12(1): 88-96. doi: 10.3788/CO.20191201.0088

Design of projection system for a micro-LED array

doi: 10.3788/CO.20191201.0088
Funds:

National Natural Science Foundation of China 61274122

National Natural Science Foundation of China 61627819

Jilin Province Science and Technology Development Plan 20160204007GX

Jilin Province Science and Technology Development Plan 20180201024GX

Guangdong Science and Technology Project 2016B010111003

Open Fund Project of SKLAO and Youth Innovation Promotion Association 2018254

More Information
  • Corresponding author: LIANG Jing-qiu. E-mail:liangjq@ciomp.ac.cn
  • Received Date: 17 Oct 2017
  • Rev Recd Date: 01 Nov 2017
  • Publish Date: 01 Feb 2019
  • In order to meet market demand for portable projectors, a projection system using an LED micro array and composed of a display light source and an imaging system is designed. The size of the self-luminous micro-LED array is 12 mm×9 mm. This micro-LED array is used as the light source. A projection lens suitable for the light source is designed by using Zemax software. The projection adopts an anti-distance optical structure with a full field-of-view angle of 80 degrees and a focal length of 8 mm. This projection uses a strong-light and wide-angle lens. The modulation transfer function of the objective lens is greater than 0.85 at a spatial frequency of 20 lp/mm and its distortion is less than 2%, which meets the design requirements of the projection system. The projection system has many advantages, such as a small size, a simple structure, good projection, easy production, etc.. It can also provide reference for the development of third-generation projection technology.

     

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