A design of panoramic lens system to realize the projection from the local annular object field to rectangular image field by using freeform surfaces

Xuqi Bian; Tao Ma; Jun Zhang

doi:10.1117/12.2245864

31 October 2016 A design of panoramic lens system to realize the projection from the local annular object field to rectangular image field by using freeform surfaces

Xuqi Bian, Tao Ma, Jun Zhang

Author Affiliations +

Proceedings Volume 10021, Optical Design and Testing VII; 100211A (2016) https://doi.org/10.1117/12.2245864
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Nowadays, panoramic annular lens (PAL) applies in aerospace, robotics vision, industrial pipeline endoscope and corporate video conferencing. A cylinder-to-plane projection which called the Flat Cylinder Perspective (FCP) is adopted in PAL. The FCP projected the three-dimensional cylindrical field object onto a two-dimensional annular image plane. The optical system has fade zone in the center of detector. Based on the structure of the PAL system, this paper shows that a panoramic lens is designed with free-form surfaces. In the designed optical system, the local annular object field of view is projected onto a rectangular image plane. The free-form panoramic lens has a wide field of view of 140°in horizontal direction and a field of view of 40°in vertical direction. The design of the panoramic lens can maximize the use of area and have no fade zone in rectangular detector.

Citation Download Citation

Xuqi Bian, Tao Ma, and Jun Zhang "A design of panoramic lens system to realize the projection from the local annular object field to rectangular image field by using freeform surfaces", Proc. SPIE 10021, Optical Design and Testing VII, 100211A (31 October 2016); https://doi.org/10.1117/12.2245864

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