An aquatic-vision-inspired camera based on a monocentric lens and a silicon nanorod photodiode array
An aquatic-vision-inspired camera based on a monocentric lens and a silicon nanorod photodiode array
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DOI：
10.1038/s41928-020-0429-5
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发表时间：
2020-06-22
影响因子：
34.3
通讯作者：
Kim, Dae-Hyeong
中科院分区：
文献类型：
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作者：
Kim, Min Sung;Lee, Gil Ju;Kim, Dae-Hyeong
通过将单中心透镜与半球形硅纳米棒光电二极管阵列集成在一起，形成了具有低光学像差、深景深和简单视觉调节的宽视场相机。传统的宽视场相机由多个透镜光学元件和平面图像传感器阵列组成，这使得它们体积庞大且笨重。因此，它们不太适合先进的移动的应用，如无人机和自动驾驶汽车。在自然界中，水生动物的眼睛由一个单一的球形透镜和一个高度敏感的半球形视网膜组成，这种方法可能有利于合成宽视场成像系统的发展。在这里，我们报告了一个水视觉灵感的相机，由一个单中心透镜和半球形硅纳米棒光电二极管阵列。该成像系统具有大视场、小型化设计、低光学像差、深景深和简单的视觉调节等特点。此外，在渐晕下，由于硅纳米棒光电二极管的增强的光电探测特性，光电二极管阵列能够实现高质量的全景成像。
By integrating a single monocentric lens with a hemispherical silicon nanorod photodiode array, a wide-field-of-view camera is created that offers low optical aberration, deep depth of field and simple visual accommodation.Conventional wide-field-of-view cameras consist of multi-lens optics and flat image sensor arrays, which makes them bulky and heavy. As a result, they are poorly suited to advanced mobile applications such as drones and autonomous vehicles. In nature, the eyes of aquatic animals consist of a single spherical lens and a highly sensitive hemispherical retina, an approach that could be beneficial in the development of synthetic wide-field-of-view imaging systems. Here, we report an aquatic-vision-inspired camera that consists of a single monocentric lens and a hemispherical silicon nanorod photodiode array. The imaging system features a wide field of view, miniaturized design, low optical aberration, deep depth of field and simple visual accommodation. Furthermore, under vignetting, the photodiode array enables high-quality panoramic imaging due to the enhanced photodetection properties of the silicon nanorod photodiodes.