Zobrazeno 1 - 9
of 9
pro vyhledávání: '"José Rufino Díaz Uribe"'
Autor:
Yobani Mejía, José Rufino Díaz-Uribe
Publikováno v:
Optical Engineering. 60
We present a simple method to measure the two principal planes and the effective focal length of an imaging optical system. It is based on measurements of transverse magnification of the image and both the object and image positions from two arbitrar
Autor:
Myrna Miriam Valera Mota, Jorge Bernal Hernández, Mariana Guzmán Noriega, José Rufino Díaz Uribe
Publikováno v:
Revista Ciencia UANL. 23
Objetivo. Determinar la percepción del color azul en niños. Métodos. Se creó un software que muestra tres estímulos azules: 430, 450 y 470 nm. Analizando mediante ANOVA: longitud/lateralidad ocular y edad/ sexo. Resultados. Mayores desviaciones
Autor:
José Rufino Díaz-Uribe, Ulises Edmundo Espinoza-Nava, Víctor Iván Moreno-Oliva, Andrés Peña-Conzuelo, Oliver Huerta-Carranza, Manuel Campos-García
Publikováno v:
Applied optics. 58(4)
In this work, we present a technique for quantitatively assessing the optical quality of a parabolic trough solar collector. The presented method is an adaptation of the null-screen technology, a collection of processes that retrieve information from
Autor:
Javier Alonso Trujillo, Mónica Irene Barrios Roldán, José Rufino Díaz Uribe, Myrna Miriam Valera Mota
Publikováno v:
Revista Ciencia UANL. 22
Objetivo: identificar la prevalencia de discromatopsias diagnosticadas en la zona metropolitana de la Ciudad de México. Materiales y métodos: pruebas pseudoisocromáticas y de ordenación aplicadas en tres escuelas diferentes del centro de México,
Autor:
Manuel Campos-García, Jesús Alberto Aguirre-Caro, Andrés Peña-Conzuelo, Ulises Edmundo Espinoza-Nava, José Rufino Díaz-Uribe
Publikováno v:
Optical Fabrication, Testing, and Metrology VI.
In the present work we present a novel approach of the null-screen test for testing a Parabolic Trough Solar Collector (PTSC) that involves the usage of custom designed dynamic patterns projected on a LCD display, in a new off-axis disposition that a
Publikováno v:
SPIE Proceedings.
We present a method for testing the shape quality of the reflecting surface of a parabolic trough solar collector (PTSC) with flat null-screens. We develop a custom algorithm to reconstruct the surface taking into account the differences between the
Autor:
Manuel Campos-García, Jorge Marquez-Flores, Victor de Emanuel Armengol-Cruz, José Rufino Díaz-Uribe, Cesar Cossio-Guerrero, Arturo I. Osorio-Infante
Publikováno v:
Applications of Digital Image Processing XXXIX.
In this work, we propose some algorithms to recover the centroids of the resultant image obtained by a conical nullscreen based corneal topographer. With these algorithms, we obtain the region of interest (roi) of the original image and using an imag
Autor:
José Rufino Díaz-Uribe, Manuel Campos-García, Cesar Cossio-Guerrero, Victor de Emanuel Armengol-Cruz, Arturo I. Osorio-Infante
Publikováno v:
SPIE Proceedings.
In this work, we will present some improvements to the conical null-screen based corneal topographer, for testing aspheric surfaces without rotational symmetry. We present the formulae to design the conical null-screen in such a way that the image on
Sensitivity analysis in the test of a parabolic trough solar collector (PTSC) with flat null-screens
Autor:
Manuel Campos-García, Agustin Santiago-Alvarado, Víctor Iván Moreno-Oliva, Andrés Peña-Conzueloa, José Rufino Díaz-Uribe, Oliver Huerta-Carranza
Publikováno v:
SPIE Proceedings.
In this work we proposed a flat null-screen method to test parabolic trough solar collectors (PTSC). The null-screen testing method measures the slope of the test surface and by a numerical integration procedure the shape of the test surface can be o