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Proceedings Paper

A design of panoramic lens system to realize the projection from the local annular object field to rectangular image field by using freeform surfaces
Author(s): Xuqi Bian; Tao Ma; Jun Zhang
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Paper 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.

Paper Details

Date Published: 31 October 2016
PDF: 7 pages
Proc. SPIE 10021, Optical Design and Testing VII, 100211A (31 October 2016); doi: 10.1117/12.2245864
Show Author Affiliations
Xuqi Bian, Soochow Univ. (China)
Tao Ma, Soochow Univ. (China)
Jun Zhang, Soochow Univ. (China)

Published in SPIE Proceedings Vol. 10021:
Optical Design and Testing VII
Yongtian Wang; Tina E. Kidger; Kimio Tatsuno, Editor(s)

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