Details
LUNEBERG, R.K. Mathematical Theory of Optics. Providence, R.I., 1944. 519 mimeographed sheets. 4to, buckram; ex-library copy (United States Navy and Library of Congress) with stamps. These mimeographed notes (as issued) were prepared for a course in Optics given at Brown University by Luneberg in the Summer of 1944.
Maxwell's early discovery of the perfect imaging properties of the fish-eye lens led to his studies of the advantages of using lens media of variable refractive index. This concept was not revived until 1944 (this paper), when it was subsequently applied to radar and communication system antennae (the "Luneberg Lens"). See DSB (under Maxwell) IX, 225 and note 89.
Maxwell's early discovery of the perfect imaging properties of the fish-eye lens led to his studies of the advantages of using lens media of variable refractive index. This concept was not revived until 1944 (this paper), when it was subsequently applied to radar and communication system antennae (the "Luneberg Lens"). See DSB (under Maxwell) IX, 225 and note 89.