Optical design for imagers is always a problem in constrained optimization, where the application provides both optical performance as well as the typically conflicting constraints on the system cost and/or physical footprint. Here we review work on several imaging systems where the physical shape of the imager has been a dominant factor in the optical system design, including a narrow imager and light source in a laryngoscope for neonatal infants as well as a number of extremely thin imagers based on the concentric folded lens geometry.

© 2010 Optical Society of America

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