Abstract
In nature, arthropods have evolved to utilize a multiaperture vision system with a micro-optical structure which has advantages, such as compact size and wide-angle view, compared to that of a single-aperture vision system. In this paper, we present a multiaperture imaging system using a microlens array fabricated by a patterned-layer integrating soft lithography (PLISL) process which is based on a molding technique that can transfer three-dimensional structures and a gold screening layer simultaneously. The imaging system consists of a microlens array, a lens-adjusting jig, and a conventional (charge-coupled device) CCD image sensor. The microlens array has a light screening layer patterned among all the microlenses by the PLISL process to prevent light interference. The three-dimensionally printed jig adjusts the microlens array on the conventional CCD sensor for the focused image. The manufactured imaging system has a thin optic system and a large field-of-view of 100 degrees. The developed imaging system takes multiple images at once. To show its possible applications, multiple depth plane images were reconstructed based on the taken subimages with a single shot.
Highlights
Most conventional imaging systems adopt a single aperture structure inspired by vertebrates’vision system
Due to the light screening layer among the microlenses fabricated by our patterned-layer integrating soft lithography (PLISL) process and the adjustable jig, all of screening layer among the microlenses fabricated by our PLISL process and the adjustable jig, all of the 18 subimages were clearly focused
A simple change in the mask for the microlens patterning can increase the number of the subimages, which means that there is higher angular resolution and depth increase the number of the subimages, which means that there is higher angular resolution and depth resolution in reconstructed images
Summary
Most conventional imaging systems adopt a single aperture structure inspired by vertebrates’. Stacking lenses along the optical axis enables this imaging system to achieve a wide-angle view, a telescopic view, and reduced aberrations. The single-aperture vision system has disadvantages, such as the limitation of miniaturization and low time resolution [1]. To overcome these disadvantages, efforts have been made to mimic insects’ vision system. There are two types of compound eye: an apposition compound eye and a superposition compound eye [2]. The apposition compound eye receives light through hundreds to thousands of facets
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
