Design and tolerance of a free-form optical system for an optical see-through multi-focal-plane display

Applied Optics
Xinda Hu, Hong Hua

Abstract

By elegantly combining recent advancements of free-form optical technology and multi-focal-plane (MFP) display technology, we developed a high-performance true 3D augmented reality (AR) display that is capable of rendering a large volume of 3D scenes with accurate focus cues; this display overcomes the accommodation-convergence discrepancy problem in conventional AR display. In this paper, we concentrate on various aspects of engineering challenges in the design and integration of a free-form optical see-through eyepiece with MFP technology for our AR display prototype. We present the design and optimization strategy in coupling free-form optics with a rotational-symmetric lens system to achieve high image quality. A comprehensive tolerance analysis of this complicated optical system is also presented, including an effective tolerance method for random surface figure errors on aspheric and free-form surfaces. Finally, the image quality of the virtual display is evaluated, which shows the as-built performance matches very well with the optical design results and tolerance analysis.

References

Jan 31, 2006·Journal of Vision·Simon J WattMartin S Banks
Jul 1, 1997·Applied Optics·T Inoue, H Ohzu
May 20, 2008·Journal of Vision·David M HoffmanMartin S Banks
Mar 13, 2010·IEEE Transactions on Visualization and Computer Graphics·Sheng LiuDewen Cheng
Jan 26, 2011·Optics Express·Yasuhiro TakakiKoji Nakamura
Jun 13, 2014·Optics Express·Hong Hua, Bahram Javidi

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Citations

May 3, 2019·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Huan DengQiong-Hua Wang
May 15, 2021·Optics Express·Xueliang ShiShijie Zhang

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