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Proceedings Paper

Active imaging lens with real-time variable resolution and constant field of view
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Paper Abstract

We present a lens with a constant total field of view and real-time variable resolution in certain zones of interest. This smart imaging lens uses an active optical element to modify as desired the local distortion. This way, while keeping the total field of view constant, the resolution can be increased in a zone of interest, at the expense of decreasing it somewhere in the remaining part of the field of view. We first present the concept of this lens, using a deformable mirror as the active surface. Computer simulations are done with Zemax in which a magnifying power of 2 in a zone of interest representing 10% of the full field of view is achieved, using a f=12.5 mm lens and a F/# of 18. Different combinations of theses parameters would allow different performances and results. We then present experimental results of this lens with a prototype built using a ferrofluidic deformable mirror as the active element. Experimental results of a zone of increased resolution with a magnification of 1.32 and a zone of decreased resolution with a magnification of 0.80 are obtained.

Paper Details

Date Published: 9 September 2010
PDF: 12 pages
Proc. SPIE 7652, International Optical Design Conference 2010, 76522F (9 September 2010); doi: 10.1117/12.868802
Show Author Affiliations
Jocelyn Parent, COPL, Univ. Laval (Canada)
Simon Thibault, COPL, Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 7652:
International Optical Design Conference 2010
Julie Bentley; Anurag Gupta; Richard N. Youngworth, Editor(s)

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