Hartmann test modification for measuring ophthalmic progressive lenses
Authors: Castellini C., Francini F., Tiribilli B.
Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, Firenze 50125, Italy
Abstract: We describe a modified verion of the Hartmann test in which the pattern of the holes is replaced with a circular scanning laser beam. A position-sensitive detector is used to acquire the coordinates of the deflected beam. Significant data are obtained when the Fourier transform of the detector output signals is considered. Application of this test method to the mapping of optical parameters of ophthalmic progressive addition lenses is presented. Prismatic deviation, spherical power, and astigmatism are measured with appropriate accuracy.
Journal/Review: APPLIED OPTICS (2004)
Volume: 33 (19) Pages from: 4120 to: 4124
KeyWords: Numerical analysis; Ophthalmology; Testing; Vision aids, Hartman test; Ophthalmic progressive lenses, LensesDOI: 10.1364/AO.33.004120Citations: 36data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-10-02References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here