title: Hyper numerical aperture imaging lens using a thin multi reflection Catadioptric optical element.
abstract: Several state-of-the-art imaging applications require a large operational spectral band, a large field size, and a high numerical aperture (NA). The design of a lens that simultaneously meets these requirements is a challenging task. We present optical designs of hyper NA imaging systems that comprise a multi reflection optical element. Light entering this element reflects multiple times before exiting. The present lens designs are 1.65 NA imaging system that operate in the broad spectral band [486.1 ~656.3 nm], have field size of 1.75 mm, and 20X magnification.
authors.affiliation: College of Optical Sciences, University of Arizona, Tucson, AZ 85721, USA. telazhary@optics.arizona.edu
authors.forename: Tamer T
authors.initials: TT
authors.lastname: Elazhary
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Nakano
authors.forename: José
authors.initials: J
authors.lastname: Sasián