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Proceedings Paper

Design of an off-axis infrared refractive/diffractive hybrid telescopic optical system
Author(s): Chongxi Zhou; Zhan Li; Dajian Lin; Chunlei Du
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Paper Abstract

An off-axis type refractive/diffractive Gregorian telescopic optical system without any aspherical element and center obscuration is presented in this paper. A binary optical element is used to correct aberrations and its size is reduced to 1/3 or 1/4 of the Schmidt corrector. Using OSLO SIX4.2 (Sinclair Optics Inc.) optical design software, an off-axis infrared refractive/diffractive hybrid telescopic system is designed with the parameters: aperture (phi) equals 120 mm, effective focal length f equals -1000 mm, wavelength (lambda) equals 4.3 micrometers , the field of view 2 degree(s) X 6 degree(s), resolution Res equals 50 um, modulation transfer function >= 0.4 when the spatial frequency v <EQ 10 cycles/mm.

Paper Details

Date Published: 31 December 1996
PDF: 4 pages
Proc. SPIE 2866, International Conference on Holography and Optical Information Processing (ICHOIP '96), (31 December 1996); doi: 10.1117/12.263026
Show Author Affiliations
Chongxi Zhou, Institute of Optics and Electronics (China)
Zhan Li, Institute of Optics and Electronics (China)
Dajian Lin, Institute of Optics and Electronics (China)
Chunlei Du, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 2866:
International Conference on Holography and Optical Information Processing (ICHOIP '96)
Guoguang Mu; Guofan Jin; Glenn T. Sincerbox, Editor(s)

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