Design and tolerance of a free-form optical system for an optical see-through multi-focal-plane display.
Design and tolerance of a free-form optical system for an optical see-through multi-focal-plane display.
复制标题
DOI：
10.1364/ao.54.009990
复制
发表时间：
2015-11
期刊：
影响因子：
1.9
通讯作者：
X. Hu;H. Hua
中科院分区：
文献类型：
--
作者：
X. Hu;H. Hua
通过巧妙地结合自由曲面光学技术和多焦平面（MFP）显示技术的最新进展，我们开发了一种高性能的真3D增强现实（AR）显示器，能够以精确的焦点提示渲染大量的3D场景;这种显示器克服了传统AR显示器中的视差-会聚差异问题。在本文中，我们专注于工程挑战的各个方面，在设计和集成的自由形式的光学透视目镜与MFP技术，我们的AR显示原型。提出了自由曲面光学系统与旋转对称透镜系统耦合的设计和优化策略，以实现高像质。对该复杂光学系统进行了全面的容差分析，提出了非球面和自由曲面随机面形误差的有效容差方法。最后，对虚拟显示器的成像质量进行了评价，结果表明，虚拟显示器的成像质量与光学设计结果和公差分析相吻合。
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.