论文标题
可变曲率显示：VR/AR/MR耳机的光学设计和应用
Variable Curvature Displays: Optical Designs and Applications for VR/AR/MR Headsets
论文作者
论文摘要
在本文中，我们通过可变调整曲率来讨论具有曲线显示器及其增强的投影系统的设计。我们证明，局灶性曲率随物体位置的变化而变化很大，并且可以通过SEIDEL畸变理论轻松地计算出来。使用此分析得出的曲率值作为起点，我们优化了具有90度视野和f/＃= 6.2的可重点投影系统。已经证明，当将无限重新调整为1.5 m时，这种系统可以提供稳定的图像质量和照明。相对于平面焦点表面，空间分辨率的增益高达1.54倍。此外，我们证明，硅死模可以弯曲到所需的形状，而在机械应力方面，安全系数为4.3。最后，结果表明，开发的系统可用于虚拟现实耳机，可提供高分辨率，低失真和灵活的聚焦模式。
In the present paper, we discuss the design of a projection system with curved display and its enhancement by variably adjusting the curvature. We demonstrate that the focal surface curvature varies significantly with a change of the object position and that it can easily be computed with the Seidel aberration theory. Using this analytically derived curvature value as the starting point, we optimise a refocusable projection system with 90 degrees field of view and F/#=6.2 . It is demonstrated that such a system can provide stable image quality and illumination when refocusing from infinity to 1.5 m. The gain in spatial resolution is as high as 1.54 times with respect to a flat focal surface. Furthermore, we prove that a silicon die can be curved to the required shape with a safety factor of 4.3 in terms of the mechanical stress. Finally, it is shown that the developed system can be used in a virtual reality headset providing high resolution, low distortion and a flexible focusing mode.
