Título

Ronchi test with equivalent wavelength

Autor

Anmi García Arellano

Fermín Salomón Granados Agustín

ANSELMO ALEJANDRO CORNEJO RODRIGUEZ

Nivel de Acceso

Acceso Abierto

Resumen o descripción

In this work we present an experimental proposal to evaluate optical surfaces with high slopes or with infrared wavelengths based on the Ronchi test as well as on the concept of equivalent wavelength. A spatial modulator is used in the implementation of the Ronchi test, and a white LED with different color filters is employed in order to generate different wavelengths. Two Ronchigrams with incoherent light, each one for a different color, are registered and computationally processed, thus generating a third one with an equivalent wavelength. The results obtained show that it is possible to generate patterns with traditional rulings and substructured sequences of Katyl. Additionally, we discuss some of the limitations of employing different rulings. Finally, we found that appropriate image enhancing algorithms allow us to improve the visibility of the resulting fringes and thus obtain a better analysis. © 2012 Optical Society of America

Editor

Applied Optics

Fecha de publicación

20 de mayo de 2012

Tipo de publicación

Artículo

Versión de la publicación

Versión aceptada

Formato

application/pdf

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Público en general

Sugerencia de citación

García Arellano, A., et al., (2012), Ronchi test with equivalent wavelength, Applied Optics, Vol. 51(15):3071-3080

Repositorio Orígen

Repositorio Institucional del INAOE

Descargas

391

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