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Proceedings Paper

Method of analysis to measure the spherical power in ophthalmic lenses
Author(s): Alicia Bustillos-Trujillo; Gerardo Trujillo-Schiaffino; Didia P. Salas-Peimbert; Paloma G. Mendoza-Villegas
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Paper Abstract

In this paper we propose a new method of analysis to obtain the spherical power in ophthalmic lenses based on ray traces of geometric optics techniques, formation, capture and image processing. We determine the spherical power in ophthalmic lenses considering the total magnification of the optical system and the Gauss's formula. A simple, practical and easy to implement experimental setup is presented for the measurement of positives and negative lenses. The setup consists in a circular object displayed in a LCD monitor, the ophthalmic lens to be measured and a digital camera in order to send information to a PC containing the software algorithm which calculates and displays the spherical power.

Paper Details

Date Published: 3 December 2009
PDF: 6 pages
Proc. SPIE 7499, Seventh Symposium Optics in Industry, 74990J (3 December 2009); doi: 10.1117/12.849059
Show Author Affiliations
Alicia Bustillos-Trujillo, Instituto Tecnológico de Chihuahua (Mexico)
Gerardo Trujillo-Schiaffino, Instituto Tecnológico de Chihuahua (Mexico)
Didia P. Salas-Peimbert, Instituto Tecnológico de Chihuahua (Mexico)
Paloma G. Mendoza-Villegas, Instituto Tecnológico de Chihuahua (Mexico)

Published in SPIE Proceedings Vol. 7499:
Seventh Symposium Optics in Industry
Guillermo García Torales; Jorge L. Flores Núñez; Gilberto Gómez Rosas; Eric Rosas, Editor(s)

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