Method of analysis to measure the tangential curvature in a test sphere

Paloma G. Mendoza-Villegas; Gerardo Trujillo-Schiaffino; Didia P. Salas-Peimbert; Alicia Bustillos-Trujillo

doi:10.1117/12.848966

3 December 2009 Method of analysis to measure the tangential curvature in a test sphere

Paloma G. Mendoza-Villegas, Gerardo Trujillo-Schiaffino, Didia P. Salas-Peimbert, Alicia Bustillos-Trujillo

Proceedings Volume 7499, Seventh Symposium Optics in Industry; 74990K (2009) https://doi.org/10.1117/12.848966
Event: Seventh Symposium on Optics in Industry, 2009, Guadalajara, Jalisco, Mexico

Abstract

Several techniques have been used to determine the radius of curvature of the cornea. In this article, we describe the use of a method obtained trough ray analysis, based in geometrical analysis and lateral magnification equation. A pattern of an increasing point was displayed in a flat screen monitor; images of this point were captured for a test sphere with a CCD camera. The obtained data was then processed for the calculation of the sphere curvature. The experimental setup is presented.

Citation Download Citation

Paloma G. Mendoza-Villegas, Gerardo Trujillo-Schiaffino, Didia P. Salas-Peimbert, and Alicia Bustillos-Trujillo "Method of analysis to measure the tangential curvature in a test sphere", Proc. SPIE 7499, Seventh Symposium Optics in Industry, 74990K (3 December 2009); https://doi.org/10.1117/12.848966

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available