title: Multiple-foci Luneberg lenses.
abstract: A family of variable-index spherically symmetric lenses is presented that provide the light focusing at two (or three) points, subject to an appropriate division of the aperture.
authors.affiliation: Central Laboratory of Optics, ul. Kamionkowska 18, 03-805 Warsaw, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Sochacki