title: Control optimization of spherical modal liquid crystal lenses.
abstract: Liquid crystal modal lenses are switchable lenses with a continuous phase variation across the lens. A critical issue for such lenses is the minimization of phase aberrations. In this paper we present results of a simulation of control signals that have a range of harmonics. Experimental results using optimal sinusoidal and rectangular voltages are presented. A lack of uniqueness in the specification of the control voltage parameters is explained. The influence of a variable duty cycle of the control voltage on an adaptive lens is investigated. Finally we present experimental results showing a liquid crystal lens varying its focal length.
authors.forename: A
authors.initials: A
authors.lastname: Naumov
authors.forename: G
authors.initials: G
authors.lastname: Love
authors.forename: M Y
authors.initials: MY
authors.lastname: Loktev
authors.forename: F
authors.initials: F
authors.lastname: Vladimirov