Li Lin, Xie Na, Li Jia-Qi, Fu Jing-Yi, Liu Shu-Bin, Wang Li-Hui, Li Yu-Hai, Li Lei
Opt Express. 2023 Jul 17;31(15):25117-25127. doi: 10.1364/OE.498096.
Imaging systems are widely used in many fields. However, there is an inherent compromise between field of view (FOV) and resolution. In this paper, we propose an optofluidic zoom system with increased FOV and less chromatic aberration, which can realize switching between large FOV and high resolution. The proposed system consists of a liquid prism, a zoom objective, an image sensor and image processing module, which can realize optical zoom and deflection. The proposed system achieves non-mechanical optical zoom from f = 40.5 mm to f = 84.0 mm. Besides, the angular resolution of zoom objective is up to 26"18 at f = 84.0 mm. The deflection range is ±10°, and the whole FOV of proposed system can reach up to 30.3°. The proposed system is compact and easy to machine. In addition, we reduce chromatic aberration produced by the liquid prism significantly. The proposed system can be used in monitor system, target tracking system, telescope system and so on.
成像系统在许多领域都有广泛应用。然而，在视场（FOV）和分辨率之间存在着固有的权衡。在本文中，我们提出了一种具有更大视场和更小色差的光流控变焦系统，它可以实现大视场和高分辨率之间的切换。所提出的系统由一个液体棱镜、一个变焦物镜、一个图像传感器和图像处理模块组成，能够实现光学变焦和偏转。所提出的系统实现了从f = 40.5毫米到f = 84.0毫米的非机械光学变焦。此外，变焦物镜在f = 84.0毫米时的角分辨率高达26″18。偏转范围为±10°，所提出系统的整个视场可达30.3°。所提出的系统结构紧凑且易于加工。此外，我们显著降低了液体棱镜产生的色差。所提出的系统可用于监控系统、目标跟踪系统、望远镜系统等。
