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Ultra-thin wafer-level camera with 720p resolution using micro-optics

: Brückner, Andreas; Oberdörster, Alexander; Dunkel, Jens; Reimann, Andreas; Müller, Martin; Wippermann, Frank


Gregory, G. G.; Davis, A.J. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Novel Optical Systems Design and Optimization XVII. Proceedings : 17-19 August 2014, San Diego, California, United States
2014 (Proceedings of SPIE 9193)
ISBN: 9781628412208
DOI: 10.1117/12.2085347
Conference "Novel Optical Systems Design and Optimization" <17, 2014, San Diego/Calif.>
Fraunhofer IOF ()
array camera; multi-aperture; wafer-level optics; imaging system; microoptics; computational camera; electronic cluster eye

We propose a microoptical approach to ultra-compact optics for real-time vision systems that are inspired by the compound eyes of insects. The demonstrated module achieves 720p resolution with a total track length of 2.0 mm which is about 1.5 times shorter than comparable conventional miniaturized optics. The partial images that are separately recorded in multiple optical channels are stitched together to form a final image of the whole FOV by means of image processing. The microlens arrays are realized by microoptical fabrication techniques on wafer-level which are suitable for a potential application in high volume e.g. for consumer electronic products.