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Microoptical telescope compound eye

: Duparre, J.; Schreiber, P.; Matthes, A.; Pshenay-Severin, E.; Tünnermann, A.; Völkel, R.; Eisner, M.; Scharf, T.

Postprint (1.7 MByte; PDF; )

Optics Express 13 (2005), No.3, pp.889-903
ISSN: 1094-4087
Journal Article, Electronic Publication
Fraunhofer IOF ()
compound eye; microoptic; microoptical telescope

A new optical concept for compact digital image acquisition devices with large field of view is developed and proofed experimentally. Archetypes for the imaging system are compound eyes of small insects and the Gabor-Superlens. A paraxial 3x3 matrix formalism is used to describe the telescope arrangement of three microlens arrays with different pitch to find first order parameters of the imaging system. A 2mm thin imaging system with 21x3 channels, 70°x10° field of view and 4.5mm x 0.5mm image size is optimized and analyzed using sequential and non-sequential raytracing and fabricated by microoptics technology. Anamorphic lenses, where the parameters are a function of the considered optical channel, are used to achieve a homogeneous optical performance over the whole field of view. Captured images are presented and compared to simulation results.