Zhao Nai-Qin, Liu Juan, Zhao Zi-Feng
Opt Lett. 2021 Sep 1;46(17):4240-4243. doi: 10.1364/OL.431415.
A scheme of quarter-overlapped microlens arrays (QOMLA) is proposed to improve the display performance of integral imaging (II). The theory and the design of QOMLA is presented by the combination of geometric optics and wave optics and is verified by the optical experiments. The angular sampling density of the II system can be doubled in each dimension to further increase the spatial resolution. Multiple central depth planes can be constructed by adjusting the spacing of the multilayers, so as to expand the depth of field (DoF). Furthermore, QOMLA is easier to process when compared with the single-layer microlens array, and it reduces processing costs.
提出了一种四分之一重叠微透镜阵列（QOMLA）方案，以提高积分成像（II）的显示性能。通过几何光学和波动光学相结合的方法阐述了QOMLA的原理和设计，并通过光学实验进行了验证。II系统的角采样密度在每个维度上都可以翻倍，以进一步提高空间分辨率。通过调整多层结构的间距可以构建多个中心深度平面，从而扩大景深（DoF）。此外，与单层微透镜阵列相比，QOMLA更容易加工，并且降低了加工成本。
