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Proceedings Paper

Prototype design of an all-reflective non-coaxial optical zooming system for space camera application without moving elements based on deformable mirror
Author(s): Hui Zhao; Xuewu Fan; Gangyi Zou; Zhihai Pang; Wei Wang; Guorui Ren; Yu Su
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Paper Abstract

Based on optical zooming used to capture images with variable resolution and field of view (FOV), an all-reflective non-coaxial optical zooming system without moving elements is designed for space camera application. In this prototype design, a deformable mirror (DM) whose curvature radius can be changed is introduced. By carefully selecting the optical power of conventional reflective mirrors surrounding the DM, the overall focal length of the imaging system can be greatly changed with slight variation of curvature radius of DM. The focal length of the system can be changed from 48mm to 192mm and the system performance is approaching diffraction-limited with diverse criteria and the maximum stoke of DM is still within its physical limits at the same time. The experimental results prove the effectiveness of DM based optical zooming and will provide a new routine for new type of space camera design in the future.

Paper Details

Date Published: 26 November 2012
PDF: 8 pages
Proc. SPIE 8557, Optical Design and Testing V, 855713 (26 November 2012); doi: 10.1117/12.981931
Show Author Affiliations
Hui Zhao, Xi'an Institute of Optics and Precision Mechanics (China)
State Key Lab. of Transient Optics and Photonics (China)
Xuewu Fan, Xi'an Institute of Optics and Precision Mechanics (China)
Gangyi Zou, Xi'an Institute of Optics and Precision Mechanics (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Zhihai Pang, Graduate Univ. of Chinese Academy of Sciences (China)
Wei Wang, Xi'an Institute of Optics and Precision Mechanics (China)
Guorui Ren, Xi'an Institute of Optics and Precision Mechanics (China)
Yu Su, Xi'an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 8557:
Optical Design and Testing V
Yongtian Wang; Chunlei Du; Hong Hua; Kimio Tatsuno; H. Paul Urbach, Editor(s)

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