Design of high resolution panoramic annular lens system

Jia Wang; Xiao Huang; Jian Bai; KaiWei Wang; Yongxiao Hua

doi:10.1117/12.2547629

18 December 2019 Design of high resolution panoramic annular lens system

Jia Wang, Xiao Huang, Jian Bai, KaiWei Wang, Yongxiao Hua

Proceedings Volume 11338, AOPC 2019: Optical Sensing and Imaging Technology; 113382I (2019) https://doi.org/10.1117/12.2547629
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

Panoramic annular lens (PAL) system consists of a panoramic head block unit and a relay lens system, adopting a plane cylindrical projection method to project a cylindrical field of view around the optical axis 360° into a two-dimensional planar annular region to realize super hemispherical imaging. PAL system requires large field of view imaging on a limited image plane, which inevitably results in lower image resolution and poor local detail imaging. However, the information processing speed gets faster with the development of 5G, which leads to a growing demand for better image quality and clarity. This paper presents a PAL system matching image sensors with 4K resolution, which can demonstrate the details about the object and get a smooth and ultra-high definition image. Unlike other sensors, it has large image faces and tiny pixels and the effective number of the pixel is about 24.3 million (4K × 6K). The proposed PAL system has 6 sets of 9 lenses with compact structure. The F-theta distortion of the full field of view is less than 1%, and the modulation transfer function value of each field of view is greater than 0.5 at the Nyquist spatial frequency of 130lp/mm which approaches diffraction limitation. The designed system has good imaging quality and meets the application requirements.

Citation Download Citation

Jia Wang, Xiao Huang, Jian Bai, KaiWei Wang, and Yongxiao Hua "Design of high resolution panoramic annular lens system", Proc. SPIE 11338, AOPC 2019: Optical Sensing and Imaging Technology, 113382I (18 December 2019); https://doi.org/10.1117/12.2547629

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