Now showing items 41-60 of 67
Rojo Badenas, Pilar (Date of defense: 2015-10-21)
This thesis proposes a method to evaluate and quantify in a precise way the peripheral refraction induced by an ophthalmic lens. The motivation for this work stems from the progression of myopia and its possible causes; ...
Arana S., Fernando F. (Date of defense: 2014-11-17)
In this study a new methodology of evaluation and design of light spectral composition for use in museums is presented. The hypothesis under this doctoral thesis is explained in three parts: a) it is factible to obtain a ...
Alba Bueno, Francisco (Date of defense: 2014-06-27)
The optical characterization of an intraocular lens (IOL) provides objective and quantitative information that is essential to fully understand its performance as an implant that replaces the crystalline lens in the human ...
Domínguez Juárez, Jorge Luís (Date of defense: 2014-07-22)
In recent years, it has been proposed that circular microresonators may become an important element in the core of many photonic devices. The high Q-factors seen in fused silica micro-spheres and micro-toroids for light ...
Herrera Ramírez, Jorge A. (Date of defense: 2014-03-25)
Multispectral systems have several applications and there are different possible configurations in which they can be implemented. Different characteristics make them useful, but the basic one is the access to spectral ...
Marrugo Hernández, Andrés G. (Andrés Guillermo) (Date of defense: 2013-11-29)
Medical digital imaging has become a key element of modern health care procedures. It provides a visual documentation, a permanent record for the patients, and most importantly the ability to extract information about many ...
Atashkhooei, Reza (Date of defense: 2013-11-04)
Among the laser based techniques proposed for metrology applications, classical interferometers offer the highest precision measurements. However, the cost of some of the elements involved and the number of optical components ...
Oteo Lozano, Esther (Date of defense: 2013-09-27)
En aquesta tesis doctoral es presenta un nou mètode per al càlcul de desalineaments en sistemes òptics a partir del front d'ona a la sortida del sistema. El mètode parteix de l'ajust de polinomis de Zernike al front d'ona ...
Esser, Gregor (Date of defense: 2012-06-25)
Derivation of analytical refraction, propagation and reflection equations for Higher Order Aberrations of wavefronts From literature the analytical calculation of Lower Order Aberrations (LOA) of a wavefront after refraction, ...
Fernández Dorado, José (Date of defense: 2013-03-22)
Esta tesis doctoral aborda el desarrollo de un algoritmo de propagación del flujo luminoso que permite a un dispositivo fotométrico realizar las medidas de la distribución de iluminación en grandes áreas, entre las cuales ...
Palomar Mascaró, Fernando-José (Date of defense: 2013-03-04)
Las hemianopsias homónimas se pueden definir como la pérdida absoluta o parcial de la visión en las mitades derechas o izquierdas de los campos visuales de ambos ojos. Los pacientes que sufren un defecto hemianópsico ...
Aldaba Arevalo, Mikel (Date of defense: 2012-10-22)
Accommodation, defined as the dioptric change of the eye, enables clear vision at different distances. Its study is interesting due to different aspects: the progressive loss of amplitude of accommodation known as presbyopia, ...
Torrecilla Ribalta, Elena (Date of defense: 2012-07-27)
La gestió sostenible dels ecosistemes marins requereix d'un millor coneixement de la distribució de certs paràmetres ecològics com les comunitats de fitoplàncton, inclosos aquells grups algals causants d'afloraments. La ...
Torrents Gómez, Aurora (Date of defense: 2011-12-22)
Desde hace años se han realizado múltiples investigaciones que tratan sobre la fiabilidad de la percepción de las distancias en profundidad y la influencia del entorno. En ocasiones, las pistas presentes en el espacio ...
Tàpias Anton, Montserrat (Date of defense: 2012-06-08)
In this thesis we applied, in a complementary way, techniques of digital image processing and reflectance spectroscopy to perform cover factor (CF) measurements in monochrome openwork fabrics. To evaluate the results ...
Ares Rodríguez, Miguel (Date of defense: 2009-10-16)
The continuous improvements of optical design tools and manufacturing technologies of free-form optical elements, allow the creation of new complex-shaped lenses that improve the performance of traditional optical systems ...
Marqués Calvo, Ma. Soledad (María Soledad) (Date of defense: 1998-07-13)
En la presente tesis doctoral se han estudiado los factores implicados en el proceso de colonización fúngica (adhesión e invasión) de lentes de contacto nuevas y procedentes de usuarios.<br/><br/>Para ello se ha diseñado ...
Lasarte Rigueiro, Marta de (Date of defense: 2009-07-01)
Hoy en día, los sistemas de imagen basados en cámaras CCD son ampliamente utilizados en numerosos campos, en particular, en el campo de la imagen científica debido a su alta resolución, alta eficiencia cuántica, amplia ...
Lupón Bas, Núria (Date of defense: 2000-06-21)
En el marc del tractament de materials amb làser, el poliment de superfícies és una tècnica relativament recent i amb múltiples aplicacions. En aquesta tesi es tracta de l'aplicació d'aquesta tècnica sobre components de ...
Armengol Cebrian, Jesús (Date of defense: 2000-12-14)
El treball que es presenta en aquesta tesis incideix sobre aquest aspecte clau en les aplicacions amb feixos làser d'alta potència: com obtenir distribucions d'intensitat que permetin generar tractaments tèrmics uniformes. ...