离轴反射分孔径光学系统的设计方法。

Applied optics Pub Date : 2025-09-10 DOI:10.1364/AO.567366
Jie Chen, Liwei Zhu, Tong Yang, Lei Yang, Hongbo Xie
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引用次数: 0

摘要

分孔径光学系统是一种重要的成像技术,可以实现多通道实时成像。然而,随着对多通道光学器件需求的不断增长,当前结构复杂、波长较窄的折射率光学系统面临着巨大的挑战。在本文中,我们提出了一种改进的设计方法,结合了离轴反射系统和分孔径光学系统的优势,以实现高水平的集成度和简化的结构。提出了一种集成光学布局和局部细节优化的设计思想。我们分析了局部子通道的分布如何影响成像特性。首先建立了基于Wassermann-Wolf微分方程的中继组和望远镜物镜组成的集成光学系统。利用不同局部表面区域的子孔径系统逐渐建立,联系紧密。为了验证该方法的可行性和有效性,给出了一个f值为1.6、入口瞳孔为130 mm的集成系统及其设计策略。孔径分割系统在33 lp/mm下的成像性能接近3-5µm的衍射极限。我们提出的设计策略不仅在多通道成像中具有广泛的应用,而且为我们的知识和新成像技术提供了有价值的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design method of an off-axis reflective aperture-divided optical system.

The aperture-divided optical system is a significant imaging technique that enables real-time imaging with multiple channels. However, an increasing demand for multi-channel optics presents a substantial challenge for current refractive optical systems with complex structures and a narrow wavelength band. In this paper, we propose a modified design method that combines the strengths of an off-axis reflective system and an aperture-divided optical system to achieve high levels of integration and simplified structure. A design concept of integrated optical layout and local detail optimization is proposed here. We present an analysis showing how local sub-channels' distribution affects the imaging characteristics. An integrated optical system, including a relay group constructed based on the Wassermann-Wolf differential equations and a telescope objective, is built first. The sub-aperture system utilizing distinct local surface regions is gradually established with a close connection. To demonstrate the feasibility and efficiency of the method, an integrated system with an F-number of 1.6 and an entrance pupil of 130 mm is presented with its design strategies. The aperture-divided system illustrates well imaging performance close to the diffraction limit in 3-5 µm at 33 lp/mm. The design strategy we have proposed not only has a broad application to multi-channel imaging but also provides valuable insight into to our knowledge, the new imaging technology.

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