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Proceedings Paper

Microoptical artificial compound eyes: from design to experimental verification of two different concepts
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Paper Abstract

Two novel objective types on the basis of artificial compound eyes are examined. Both imaging systems are well suited for fabrication using microoptics technology due to the small required lens sags. In the apposition optics a microlens array (MLA) and a photo detector array of different pitch in its focal plane are applied. The image reconstruction is based on moire magnification. Several generations of demonstrators of this objective type are manufactured by photo lithographic processes. This includes a system with opaque walls between adjacent channels and an objective which is directly applied onto a CMOS detector array. The cluster eye approach, which is based on a mixture of superposition compound eyes and the vision system of jumping spiders, produces a regular image. Here, three microlens arrays of different pitch form arrays of Keplerian microtelescopes with tilted optical axes, including a field lens. The microlens arrays of this demonstrator are also fabricated using microoptics technology, aperture arrays are applied. Subsequently the lens arrays are stacked to the overall microoptical system on wafer scale. Both fabricated types of artificial compound eye imaging systems are experimentally characterized with respect to resolution, sensitivity and cross talk between adjacent channels. Captured images are presented.

Paper Details

Date Published: 17 October 2005
PDF: 12 pages
Proc. SPIE 5962, Optical Design and Engineering II, 59622A (17 October 2005); doi: 10.1117/12.625081
Show Author Affiliations
Jacques Duparré, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Frank Wippermann, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Peter Dannberg, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Peter Schreiber, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Andreas Bräuer, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Reinhard Völkel, SUSS MicroOptics SA (Switzerland)
Toralf Scharf, Univ. de Neuchâtel (Switzerland)

Published in SPIE Proceedings Vol. 5962:
Optical Design and Engineering II
Laurent Mazuray; Rolf Wartmann, Editor(s)

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