title: Effects of edge-rounding on geodesic lenses.
abstract: The effects of rounding of the edge on the focal properties of spherical-depression geodesic lenses are calculated. The focal length for paraxial rays is increased very slightly for slight rounding. For greater rounding, a decrease in focal length results from the increased optical path. Edge-rounding has very little effect on lens aberrations.
authors.forename: V E
authors.initials: VE
authors.lastname: Wood