ARRAY OF DOUBLET LENSLETS

Arrays of lenslets are needed for a variety of applications [1], inclu ding optical information processing. So far the elements of the array were either plano-convex lenses or GRIN lenses. We now suggest how to produce an array of doublet lenses. Doublet lenses may be superior to singlet lenses in terms of spherical and chromatic aberrations. The co ncave surface within the doublet would be generated by etching a spher ical dent into a glass plate (sectional sign 1). This technology exist s since many years. The bi-convex component of the doublet would consi st of a droplet of optical glue (sectional sign 2). The surface of suc h a droplet has a good optical quality.