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Proceedings Paper

Design of infrared diffractive telescope imaging optical systems
Author(s): ZhouFeng Zhang; BingLiang Hu; QinYe Yin; YongJun Xie; FuZeng Kang; YanJun Wang
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Paper Abstract

Diffractive telescope is an updated imaging technology, it differs from conventional refractive and reflective imaging system, which is based on the principle of diffraction image. It has great potential for developing the larger aperture and lightweight telescope. However, one of the great challenges of design this optical system is that the diffractive optical element focuses on different wavelengths of light at different point in space, thereby distorting the color characteristics of image. In this paper, we designs a long-wavelength infrared diffractive telescope imaging system with flat surface Fresnel lens and cancels the infrared optical system chromatic aberration by another flat surface Fresnel lens, achieving broadband light(from 8μm-12μm) to a common focus with 4.6° field of view. At last, the diffuse spot size and MTF function provide diffractive-limited performance.

Paper Details

Date Published: 15 October 2015
PDF: 8 pages
Proc. SPIE 9676, AOPC 2015: Optical Design and Manufacturing Technologies, 96760Z (15 October 2015); doi: 10.1117/12.2201125
Show Author Affiliations
ZhouFeng Zhang, Xi'an Institute of Optics and Precision Mechanics (China)
Xi'an Jiaotong Univ. (China)
Graduate Univ. of Chinese Academy of Sciences (China)
BingLiang Hu, Xi'an Institute of Optics and Precision Mechanics (China)
QinYe Yin, Xi'an Jiaotong Univ. (China)
YongJun Xie, Xi'an Institute of Optics and Precision Mechanics (China)
FuZeng Kang, Xi'an Institute of Optics and Precision Mechanics (China)
YanJun Wang, Xi'an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 9676:
AOPC 2015: Optical Design and Manufacturing Technologies
Lin Li; Kevin P. Thompson; Ligong Zheng, Editor(s)

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