Application of diffractive structure in micro-projection light path

Yujie Chen; Feng Xu; Penglei Zheng; Suodong Ma

doi:10.1117/12.2585277

4 December 2020 Application of diffractive structure in micro-projection light path

Yujie Chen, Feng Xu, Penglei Zheng, Suodong Ma

Author Affiliations +

Proceedings Volume 11617, International Conference on Optoelectronic and Microelectronic Technology and Application; 1161728 (2020) https://doi.org/10.1117/12.2585277
Event: International Conference on Optoelectronic and Microelectronic Technology and Application, 2020, Nanjing, China

Abstract

In this paper, a micro-projection display with telecentric beam path in image space is designed. The device consists of a 0.26-inch liquid crystal on silicon (LCOS), a polarizing beam splitting cube and a hybrid refractive-diffractive eyepiece. The refractive-diffractive eyepiece has a focal length of 9.16 mm, a full field of view of 40° and a spectral bandwidth of 422~632 nm. The eyepiece is optimized by the wide-angle eyepiece, which consists of four optical lenses. The designed hybrid refractive-diffractive micro-projection display system has good projection effect while using a small number of lenses in a simple structure. This provides a reference for the future development of lightweight micro-projection systems.

Citation Download Citation

Yujie Chen, Feng Xu, Penglei Zheng, and Suodong Ma "Application of diffractive structure in micro-projection light path", Proc. SPIE 11617, International Conference on Optoelectronic and Microelectronic Technology and Application, 1161728 (4 December 2020); https://doi.org/10.1117/12.2585277

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