Biologically Inspired Artificial Compound Eyes

This work presents the fabrication of biologically inspired artificial compound eyes. The artificial ommatidium, like that of an insect's compound eyes, consists of a refractive polymer microlens, a light-guiding polymer cone, and a self-aligned waveguide to collect light with a small angular acceptance. The ommatidia are omnidirectionally arranged along a hemispherical polymer dome such that they provide a wide field of view similar to that of a natural compound eye. The spherical configuration of the microlenses is accomplished by reconfigurable microtemplating, that is, polymer replication using the deformed elastomer membrane with microlens patterns. The formation of polymer waveguides self-aligned with microlenses is also realized by a self-writing process in a photosensitive polymer resin. The angular acceptance is directly measured by three-dimensional optical sectioning with a confocal microscope, and the detailed optical characteristics are studied in comparison with a natural compound eye.

[1]  Simon B. Laughlin,et al.  Comparative Physiology and Evolution of Vision in Invertebrates , 1981 .

[2]  A. Huiser,et al.  Refractive index of the fly rhabdomere. , 1982, Journal of the Optical Society of America.

[3]  Roger C. Hardie,et al.  The compound eye of the tsetse fly (Glossina morsitans morsitans and Glossina palpalis palpalis) , 1989 .

[4]  S. Ogata,et al.  Optical sensor array in an artificial compound eye , 1994 .

[5]  Carl E. Halford,et al.  Design and analysis of apposition compound eye optical sensors , 1995 .

[6]  A. Yariv,et al.  Self-focusing and self-trapping of optical beams upon photopolymerization. , 1996, Optics letters.

[7]  G. Whitesides,et al.  Complex Optical Surfaces Formed by Replica Molding Against Elastomeric Masters , 1996, Science.

[8]  M. Land.  Visual acuity in insects. , 1997, Annual review of entomology.

[9]  Hiroshi Ito,et al.  Light-induced self-written three-dimensional optical waveguide , 2001 .

[10]  J. Tanida,et al.  Thin Observation Module by Bound Optics (TOMBO): Concept and Experimental Verification. , 2001, Applied optics.

[11]  Satoru Shoji,et al.  Self-written waveguides in photopolymerizable resins. , 2001, Optics letters.

[12]  D. Stavenga.  Angular and spectral sensitivity of fly photoreceptors. I. Integrated facet lens and rhabdomere optics , 2002, Journal of Comparative Physiology A.

[13]  R. Feng,et al.  Influence of processing conditions on the thermal and mechanical properties of SU8 negative photoresist coatings , 2002 .

[14]  Christoph Wächter,et al.  Formation of micro-optical structures by self-writing processes in photosensitive polymers. , 2003, Applied optics.

[15]  K. Yamashita,et al.  Self-written waveguide structure in photosensitive polyimide resin fabricated by exposure and thermosetting process , 2004, IEEE Photonics Technology Letters.

[16]  S. B. Laughlin,et al.  Angular sensitivity of the retinula cells of dark-adapted worker bee , 1971, Zeitschrift für vergleichende Physiologie.

[17]  Eric J. Warrant,et al.  Retinal and optical adaptations for nocturnal vision in the halictid bee Megalopta genalis , 2004, Cell and Tissue Research.

[18]  Allan W. Snyder,et al.  Can an individual bee ommatidium detect an image? , 1972, Journal of comparative physiology.

[19]  A. Tünnermann,et al.  Thin compound-eye camera. , 2005, Applied optics.

[20]  Luke P. Lee,et al.  Inspirations from Biological Optics for Advanced Photonic Systems , 2005, Science.

[21]  Luke P. Lee,et al.  Artificial ommatidia by self-aligned microlenses and waveguides. , 2005, Optics letters.