Fig. 2: Design, fabrication, and characterization of bionic micro-lens arrays.
From: An insect-scale artificial visual-olfactory bionic compound eye
A The structure of Drosophila microphthalmia and the geometric optical parameters of bio-CE ommatidium; B The mathematic model of the target spatial position and the compound eye activation form; C Micro-lens array imaging with patterned mask, scale bar 100 μm; D Droplet condensation effect under high humidity condition, scale bar 100 μm; E Field curvature of the designed micro-lens under various wavelength illumination; F Encircled energy distribution curve at a different incident angle; G Point diffusion function of micro-lens at different wavelengths; H Morphology characterization of micro-lens surface, inset scale bar 10 μm; Interocular optical isolation is verified by the linear light intensity distribution of micro-lens arrays at different incidence angles (I) and the CMOS-based micro-lens array spot scattering varies with incidence angle (J).
