Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3290244
Keywords
cameras; digital photography; elemental semiconductors; optical arrays; photodetectors; photographic lenses; silicon
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Funding
- National Science Foundation [ECCS-0824129]
- MURI
- Ministry of Science and Technology [ROA-2007-000-20102-0]
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We report on a type of digital camera that uses a hexagonal array of silicon photodetectors on a substrate whose surface has parabolic curvature. This elliptical paraboloid shape closely matches the image surface formed by a simple, planoconvex lens. The hexagonal arrangement provides high area coverage with an approximately circular peripheral view. Details of the design strategies and underlying features of the mechanics and optics are described. Full imaging with these parabolic cameras and comparison to planar layouts reveals improved uniformity of illumination and focus across a wide field of view.
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