Adaptive self-mixing interferometry for metrology applications 

    Atashkhooei, Reza (Date of defense: 2013-11-4)

    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 ...

    Calidad óptica ocular en ojos sometidos a cirugía refractiva y afecciones patológicas 

    Ondategui Parra, Juan Carlos (Date of defense: 2016-01-29)

    This dissertation deals with the evaluation of ocular optical quality in two types of patients. First, are patients who have undergone different surgical techniques of refractive surgery to correct different degrees of ...

    Calidad visual en pacientes con implante bilateral y simétrico de lentes intraoculares multifocales 

    Varón, Ma. Consuelo (María Consuelo) (Date of defense: 2016-12-15)

    PURPOSE: This thesis presents the results of a prospective, double-blind and randomized clinical trial conducted at the Hospital de Sant Pau i la Santa Creu ofBarcelona.lts main objective was to assess and compare visual ...

    Caracterització dels paràmetres corneals per a l'adaptació de lents de contacte en casos de queratocon 

    Mas Aixalà, Enric (Date of defense: 2019-07-12)

    Introduction: The characterization of the corneal surface and the classification of keratoconus into diverse severity stages is a field of research in constant evolution, not only because of technology advances, but also ...

    Caracterització, reconeixement de patrons i detecció de defectes en textures periòdiques mitjançant anàlisi d'imatges. Aplicació a teixits textils 

    Escofet Soteras, Jaume (Date of defense: 1999-09-23)

    La forta exigència de qualitat a que són sotmesos els productes actuals fa que els processos d'inspecció i control industrial ocupin, cada vegada més, un lloc destacat en la seva fabricació. La indústria relacionada amb ...

    Caracterización de la regresión diurna en ortoqueratología 

    Pérez Corral, Juan Enrique (Date of defense: 2021-11-09)

    The first papers on the fitting of ortho-k lenses in ametropic individuals, treatment that allows them to enjoy good vision without the need to wear glasses or contact lenses, were published almost 60 years ago. Both the ...

    Caracterización óptica de lentes intraoculares = Optical characterization of intraocular lenses 

    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 ...

    Colonización fungica de lentes de contacto 

    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 ...

    Comprehensive retinal image analysis: image processing and feature extraction techniques oriented to the clinical task 

    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 ...

    Continuous wave frequency modulated optical feedback (CWFM-OF) : theory and applications 

    Jha, Ajit (Date of defense: 2016-11-25)

    Diese Arbeit soll einen Beitrag leisten zur Entwicklung neuer Sensorstrategien, basierend auf Phänomenen der optischer Rückkopplung, in Kombination mit die Intensitätsmodulation des Lasers. Optische Rückkopplung, ein ...

    Derivation of analytical refraction, propagation and reflection equations for higher order aberrations of wavefronts 

    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, ...

    Desarrollo de un algoritmo de propagación de flujo luminoso para un dispositivo fotométrico móvil con capacidad de discretización angular: aplicación a la generación de mapas de iluminación de alumbrado público 

    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 ...

    Desarrollo de un sistema de doble paso compacto y de bajo coste para la evaluación de la calidad óptica y la difusión intraocular 

    Sanabria, Ferran (Date of defense: 2015-12-02)

    The purpose of this PhD thesis was to design, implement and validate a low cost compact system based on the double-pass I technique in order to evaluate the viability of its use in the future in optical instrumentation ...

    Design and construction of a snapshot full-Stokes polarimetric camera : seeing through fog 

    Peña Gutiérrez, Sara (Date of defense: 2023-02-24)

    (English) Polarization is one of the properties of light and it is often put aside. Human beings receive light beams and process only the intensity and wavelength information. Our optical system lacks the capability of ...

    The design and implementation of a spectrally tuneable LED-based light sourde : towards a new era of intelligent illumination 

    Hertog, Wim (Date of defense: 2017-06-07)

    Rising population numbers place ever increasing demands on energy resources. A large percentage of the worldwide energy production is reserved for the generation of electricity and a significant portion of the electrical ...

    Design of a portable observatory control system 

    Suc, Vincent (Date of defense: 2018-11-07)

    In this thesis, we synthesize the development of a new concept of operation of small robotic telescopes operated over the Internet. Our design includes a set of improvements in control algorithmic and hardware of several ...

    Determinació del factor de cobertura en teixits de calada per processament de la imatge digital i espectroscòpia de reflexió 

    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 ...

    Development and clinical applications of a whole anterior segment and retinal SS-OCT 

    Rodríguez Aramendía, Ana (Date of defense: 2023-03-24)

    (English) Vision is central to human perception. It emanates from a complex organ, the human eye, starting from photodetection in the retina. However, the quality of the visual experience depends on the anatomical integrity ...

    Development of a new spectral imaging system for the diagnosis of skin cancer 

    Delpueyo Español, Xana (Date of defense: 2017-11-06)

    The incidence of skin cancer in Europe, US and Australia has been rising rapidly. Skin cancer accounts for one in three cancers worldwide and a person has 1:25 chance to develop a melanoma, the most aggressive form. Visual ...

    Development of new methodologies for the clinical, objective and automated evaluation of visual function based on the analysis of ocular movements : application in visual health 

    Mestre Ferrer, Clara (Date of defense: 2019-05-24)

    Healthy visual function not only relies on good visual acuity. Other systems such as accommodation or binocular vision need to be effective. Binocular vision is the ability of the visual system to coordinate and integrate ...