Description:  This wide-angle lens (top) produces distortion-free views, like this view from the ceiling of a bookstore (bottom).
Source:  Gyeong-il Kweon, Honam University, et al.
Story:  Truer wide-angle lens
TRN December 11/18, 2006
TRN Categories:  Optical Computing , Optoelectronics and Photonics
Form:  Still

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