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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 6 — Feb. 20, 2013
  • pp: 1192–1210

All-reflective optical bifocal zooming system without moving elements based on deformable mirror for space camera application

Hui Zhao, Xuewu Fan, Gangyi Zou, Zhihai Pang, Wei Wang, Guorui Ren, Yunfei Du, and Yu Su  »View Author Affiliations

Applied Optics, Vol. 52, Issue 6, pp. 1192-1210 (2013)

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The space camera with variable focal length is capable of capturing images with variable resolution and variable field of view. This is useful for space-borne reconnaissance because the camera can switch between coarse and fine reconnaissance flexibly. However, the traditional optical zooming relies on moving elements which might influence the momentum balance of the satellite platform. Therefore, we present a prototype design using the piezo deformable mirror (PDM) to realize an all-reflective optical bifocal zooming system. By changing the curvature radius of the PDM, the focal length can be switched between 48 and 192 mm without moving elements involved. With the focal length experiencing 4 × magnification, the system performance is still approaching diffraction-limited performance, and the maximum stroke of the PDM is also within its physical limits. Experiments demonstrate that the principle is correct and the design is successful.

© 2013 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Imaging Systems

Original Manuscript: November 14, 2012
Revised Manuscript: January 8, 2013
Manuscript Accepted: January 9, 2013
Published: February 13, 2013

Hui Zhao, Xuewu Fan, Gangyi Zou, Zhihai Pang, Wei Wang, Guorui Ren, Yunfei Du, and Yu Su, "All-reflective optical bifocal zooming system without moving elements based on deformable mirror for space camera application," Appl. Opt. 52, 1192-1210 (2013)

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  1. S. Kuiper and B. H. Hendriks, “Variable-focus liquid lens for miniature cameras,” Appl. Phys. Lett. 85, 1128–1130(2004). [CrossRef]
  2. D. V. Wick, T. Martinez, D. M. Payne, W. C. Sweatt, and S. R. Restaino, “Active optical zoom system,” Proc. SPIE 5798, 151–157 (2005). [CrossRef]
  3. B. E. Bagwell, D. V. Wick, W. D. Cowan, O. Blum Spahn, W. C. Sweatt, T. Martinez, S. R. Restaino, J. R. Andrews, C. C. Wilcox, D. M. Payne, and R. Romeo, “Active zoom imaging for operationally responsive space,” Proc. SPIE 6467, 64670D (2007). [CrossRef]
  4. K. Seidl, J. Knobbe, and H. Gruger, “Design of an all-reflective unobscured optical-power zoom objective,” Appl. Opt. 48, 4097–4107 (2009). [CrossRef]
  5. K. Seidl, K. Richter, J. Knobbe, and H.-G. Maas, “Wide field-of-view all-reflective objectives designed for multispectral image acquisition in photogrammetric applications,” Proc. SPIE 8172, 817210 (2011). [CrossRef]
  6. J.-L. Wang, T.-Y. Chen, Y.-H. Chien, and G.-D. J. Su, “Miniature optical autofocus camera by micromachined fluoropolymer deformable mirror,” Opt. Express 17, 6268–6274 (2009). [CrossRef]
  7. Y.-H. Lin, Y.-L. Liu, and G.-D. J. Su, “Optical zoom module based on two deformable mirrors for mobile device application,” Appl. Opt. 51, 1804–1810 (2012). [CrossRef]
  8. D. Wick and T. Martinez, “Adaptive optical zoom,” Opt. Eng. 43, 8–9 (2004). [CrossRef]
  9. H. Kinoshita, K. Hoshino, K. Matsumoto, and I. Shimoyama, “A thin camera with a zoom function using reflective optics,” Sens. Actuators A 128, 191–196 (2006). [CrossRef]
  10. J. M. Rodgers, “Four-mirror compact afocal telescope with dual exit pupil,” Proc. SPIE 6342, 63421J-1 (2006). [CrossRef]

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