Prototype design of an all-reflective non-coaxial optical zooming system for space camera application without moving elements based on deformable mirror

Hui Zhao; Xuewu Fan; Gangyi Zou; Zhihai Pang; Wei Wang; Guorui Ren; Yu Su

doi:10.1117/12.981931

26 November 2012 Prototype design of an all-reflective non-coaxial optical zooming system for space camera application without moving elements based on deformable mirror

Hui Zhao, Xuewu Fan, Gangyi Zou, Zhihai Pang, Wei Wang, Guorui Ren, Yu Su

Author Affiliations +

Proceedings Volume 8557, Optical Design and Testing V; 855713 (2012) https://doi.org/10.1117/12.981931
Event: Photonics Asia, 2012, Beijing, China

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.

Citation Download Citation

Hui Zhao, Xuewu Fan, Gangyi Zou, Zhihai Pang, Wei Wang, Guorui Ren, and Yu Su "Prototype design of an all-reflective non-coaxial optical zooming system for space camera application without moving elements based on deformable mirror", Proc. SPIE 8557, Optical Design and Testing V, 855713 (26 November 2012); https://doi.org/10.1117/12.981931

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