An artificial compound eye corresponding to apposition eyes of insects has been demonstrated using a twodimensional array 0L gradient-index rod lenses known as a Selfoc lens plate (a SLP). A single erect Moir~ image is reconstructed from a number of inverted micro-images by an experimental optical system composed of the SLP, a pinhole array and a plano-concave lens. Characteristics of the compound eye is briefly discussed from the viewpoints of space-bandwidth product, viewing angle, and focal depth. Capability of a scale-invariant image sensor that has been proposed as an application of the compound-eye-type imager was also proved experimentally.
In recent years, the application area of gradient-index has extended to optical communication1), photocopy machine, endoscope, facsimile, printer, optical disk system2) and so on.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.