3 December 2009 Method of analysis to measure the spherical power in ophthalmic lenses
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Proceedings Volume 7499, Seventh Symposium Optics in Industry; 74990J (2009) https://doi.org/10.1117/12.849059
Event: Seventh Symposium on Optics in Industry, 2009, Guadalajara, Jalisco, Mexico
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.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alicia Bustillos-Trujillo, Alicia Bustillos-Trujillo, Gerardo Trujillo-Schiaffino, Gerardo Trujillo-Schiaffino, Didia P. Salas-Peimbert, Didia P. Salas-Peimbert, Paloma G. Mendoza-Villegas, Paloma G. Mendoza-Villegas, } "Method of analysis to measure the spherical power in ophthalmic lenses", Proc. SPIE 7499, Seventh Symposium Optics in Industry, 74990J (3 December 2009); doi: 10.1117/12.849059; https://doi.org/10.1117/12.849059
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