Modeling the conical corneal null-screen topographer with the Fermat principle

Andrés Peña-Conzuelo; Manuel Campos-García

doi:10.1117/12.2556053

1 April 2020 Modeling the conical corneal null-screen topographer with the Fermat principle

Andrés Peña-Conzuelo, Manuel Campos-García

Proceedings Volume 11352, Optics and Photonics for Advanced Dimensional Metrology; 113521C (2020) https://doi.org/10.1117/12.2556053
Event: SPIE Photonics Europe, 2020, Online Only

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.

Conference Presentation

Citation Download Citation

Andrés Peña-Conzuelo and Manuel Campos-García "Modeling the conical corneal null-screen topographer with the Fermat principle", Proc. SPIE 11352, Optics and Photonics for Advanced Dimensional Metrology, 113521C (1 April 2020); https://doi.org/10.1117/12.2556053

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