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Proceedings Paper

Modeling the conical corneal null-screen topographer with the Fermat principle
Author(s): Andrés Peña-Conzuelo; Manuel Campos-García
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Paper Abstract

In this work we derive the system of equations that describe the passage of light through the conical corneal null-screen topographer from the Fermat principle; specifically, it computes the surface coordinates in which the reflection of the null-screen is produced, so that its normal field may be computed; since most of the surface information is obtained from it, this is an essential step on the evaluation process; the formulation here presented is an upgrade from previous works.

Paper Details

Date Published: 1 April 2020
PDF: 7 pages
Proc. SPIE 11352, Optics and Photonics for Advanced Dimensional Metrology, 113521C (1 April 2020); doi: 10.1117/12.2556053
Show Author Affiliations
Andrés Peña-Conzuelo, Univ. Nacional Autónoma de México (Mexico)
Manuel Campos-García, Univ. Nacional Autónoma de México (Mexico)


Published in SPIE Proceedings Vol. 11352:
Optics and Photonics for Advanced Dimensional Metrology
Peter J. de Groot; Richard K. Leach; Pascal Picart, Editor(s)

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