Share Email Print
cover

Proceedings Paper

Design of VisSWIR continuous zoom optical system
Author(s): Mingyang Yang; Hongtao Yang; Rui Qu; Chao Mei; Zuofeng Zhou
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

For 640 pixel×512 pixel cooled staring focal plane array detector, a VisSWIR wideband continuous zoom optical system with 7X zoom range is presented based on the pattern of the negative zoom group and compensating lens group. The zoom system provides continuous changed in the field of view from narrow to the wide. The zoom optical system works in the range of 0.4μm~1.7μm, F number is 4, the pixel of the detector is 15μm. It realizes 20mm~140mm continuous zoom with a smooth zoom path and provided high image quality with the whole zoom range, the zoom ratio is 7:1. The modulation transfer function(MTF) for the system is above 0.5 within the whole focal length range at spatial frequency of 34lp/mm and it almost approaches the diffraction limit. RMS value of spot diameter was investigation, the maximum distortion value is less than 5% and the surface type of all lens applied is spherical. Moreover, the cam curve after optimization is given by the optical design software Code V macro. The design results provide that the zoom system has the small size, high resolution, excellent image quality and the smooth cam curve etc.

Paper Details

Date Published: 28 February 2017
PDF: 7 pages
Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102564P (28 February 2017); doi: 10.1117/12.2259866
Show Author Affiliations
Mingyang Yang, Xi'an Institute of Optics and Precision Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Hongtao Yang, Xi'an Institute of Optics and Precision Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Rui Qu, Xi'an Institute of Optics and Precision Mechanics (China)
Chao Mei, Xi'an Institute of Optics and Precision Mechanics (China)
Zuofeng Zhou, Xi’an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 10256:
Second International Conference on Photonics and Optical Engineering
Chunmin Zhang; Anand Asundi, Editor(s)

© SPIE. Terms of Use
Back to Top