Preparation method of curved compound eye

Abstract

The invention discloses a preparation method of a curved compound eye. The preparation method comprises the particular steps of: preparing a micro concave lens array on a substrate; depositing polydimethylsiloxane on the surface of the micro concave lens array, and separating the polydimethylsiloxane from the micro concave lens array after curing, so as to obtain a polydimethylsiloxane micro concave lens array; dropping SU-8 photo-etching glue on the lower surface of a curved substrate, and fixing the periphery of the polydimethylsiloxane micro concave lens array on the upper surface of the curved substrate after the SU-8 is cooled and cured; and carrying out ultraviolet explosion on the upper surface of the curved substrate, and drying the SU-8 glue to obtain a self-alignment waveguide array. According to the preparation method, a method of directly manufacturing the micro concave lens array on the curved substrate is abandoned; the plane micro convex lens array is manufactured and then the curved micro lens array is manufactured by the elasticity of a material; and meanwhile, the crystalline cone waveguide is manufactured by using a self-alignment method. With the adoption of the method provided by the invention, the micron-level curved lens array can be prepared; the error caused by that the lens and the waveguide align can be effectively reduced; and meanwhile, the curvature of the curve can be accurately controlled; and the good repeatability can be realized.

Description

technical field [0001] The invention relates to the field of optical bionics, in particular to a method for preparing curved bionic compound eyes. Background technique [0002] The bionic compound eye has the advantages of small size, large field of view, and high sensitivity. It is an excellent model in detectors and has important applications in military, medical and other fields. Since each ommatidium of the bionic compound eye includes two parts, the condenser lens and the cone waveguide, the fabrication of the bionic curved surface compound eye mainly includes the fabrication of the curved microlens array and the fabrication of the corresponding waveguide. Usually, the manufacturing method of the curved surface compound eye is: using curved surface lithography technology or liquid drop method to make a microlens array on the curved surface substrate, and then aligning and coupling it with the diaphragm array or the waveguide array. The most critical steps are the fabri...

AI Technical Summary

Problems solved by technology

This method overcomes the difficulties in the fabrication of the microlens array and the coupling between the microlens and the waveguide, but the fabrication process is complex, the cycle is long, and the curvature of the curved surface is controlled by air pressure, so it is difficult to strictly control the size of the curvature.

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