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arXiv · 2106.07872

Planar multi-aperture fish-eye lens using metagrating

Zihan Zang·Haoqiang Wang·Yanjun Han·Hongtao Li·H. Y. FU·Yi Luo
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Abstract

The design of compact optical systems with large field of view has been difficult due to the requirement of many elements or a curved focal plane to reduce off-axis aberration. We propose a multi-aperture lens design to effectively resolve these issues. Metagrating-based deflectors are placed near entrance pupils of multi-aperture lens array to enhance field of view. A systematic design method is given in details. In design examples, a $\pm$80$^\circ$ field of view using only two planar optical elements is achieved. Also, the system is extremely compact with total track lengths an order of magnitude smaller than conventional fish-eye lenses, while the imaging performance is comparable with conventional designs.

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Zihan Zang, Haoqiang Wang, Yanjun Han, Hongtao Li, H. Y. FU, Yi Luo. 2021-06-15. Planar multi-aperture fish-eye lens using metagrating. https://arxiv.org/abs/2106.07872

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