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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 51, Iss. 11 — Apr. 10, 2012
  • pp: 1804–1810

Optical zoom module based on two deformable mirrors for mobile device applications

Yu-Hung Lin, Yen-Liang Liu, and Guo-Dung J. Su  »View Author Affiliations


Applied Optics, Vol. 51, Issue 11, pp. 1804-1810 (2012)
http://dx.doi.org/10.1364/AO.51.001804


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Abstract

In recent years, optical zoom functionality in mobile devices has been studied. Traditional zoom systems use motors to change separation of lenses to achieve the zoom function, but these systems result in long total length and high power consumption, which are not suitable for mobile devices. Adopting micromachined polymer deformable mirrors in zoom systems has the potential to reduce thickness and chromatic aberration. In this paper, we propose a 2× continuous optical zoom system with five-megapixel image sensors by using two deformable mirrors. In our design, the thickness of the zoom system is about 11 mm. The effective focal length ranges from 4.7 mm at a field angle of 52° to 9.4 mm. The f-number is 4.4 and 6.4 at the wide-angle and telephoto end, respectively.

© 2012 Optical Society of America

OCIS Codes
(080.3620) Geometric optics : Lens system design
(220.4830) Optical design and fabrication : Systems design

History
Original Manuscript: September 7, 2011
Revised Manuscript: January 23, 2012
Manuscript Accepted: January 24, 2012
Published: April 10, 2012

Citation
Yu-Hung Lin, Yen-Liang Liu, and Guo-Dung J. Su, "Optical zoom module based on two deformable mirrors for mobile device applications," Appl. Opt. 51, 1804-1810 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-11-1804


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