Opt Express. 2022 Jun 6;30(12):20952-20962. doi: 10.1364/OE.454530.
Natural compound eyes have excellent optical characteristics, namely large field of view, small size, no aberration, and sensitive to motion. Some arthropods have more powerful vision. For example, the Morpho butterfly's compound eyes can perceive the near-infrared and ultraviolet light that the human eye cannot see. This wide-band imaging with a large field of view has great potential in wide-area surveillance, all-weather panoramic imaging, and medical imaging. Hence, a wide-band spherical compound eye camera inspired by the Morpho butterfly's eye was proposed. The wide-band spherical compound eye camera which can achieve a large field of view (360° × 171°) imaging over a wide range of wavelengths from 400nm to 1000nm, mainly consists of three parts: a wide-band spherical compound eye with 234 sub-eyes for light collection, a wide-band optical relay system for light transmission, and a wide-band CMOS image sensor for photoelectric conversion. Our experimental results show that the wide-band spherical compound eye camera not only captures a large field of view without anomalous blurring or aberrations but also perceives near-infrared light that is not recognized by the human eye. These features make it possible for distortion-free panoramic vision and panoramic medical diagnosis.
天然复眼具有优异的光学特性，即大视场、小尺寸、无像差、对运动敏感。一些节肢动物具有更强大的视觉。例如，闪蝶的复眼可以感知人眼无法看到的近红外光和紫外光。这种宽频带大视场成像在大面积监控、全天候全景成像和医学成像方面具有巨大的潜力。因此，提出了一种受闪蝶眼启发的宽频带球形复眼相机。该宽频带球形复眼相机可以在从 400nm 到 1000nm 的宽波长范围内实现大视场（360°×171°）成像，主要由三部分组成：用于收集光的 234 个子眼的宽频带球形复眼、用于光传输的宽频带光学中继系统以及用于光电转换的宽频带 CMOS 图像传感器。我们的实验结果表明，该宽频带球形复眼相机不仅可以在无像差的情况下捕捉大视场，还可以感知人眼无法识别的近红外光。这些特性使得无失真全景视觉和全景医学诊断成为可能。
