Departament d'Òptica i Optometria
Envíos recientes
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Device and strategy for surface energy measurement
(Universitat Politècnica de Catalunya, 2018-03-15)
Tesis
Acceso abiertoIn this Ph.D. Thesis, we have developed a new measurement method to measure the contact angle and the surface energy in hydrophobic samples with a device based on confocal technology. This new measurement method incorporates ... -
Development of a new spectral imaging system for the diagnosis of skin cancer
(Universitat Politècnica de Catalunya, 2017-11-06)
Tesis
Acceso abiertoThe 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 ... -
Lens-based technologies to study accommodation and refraction
(Universitat Politècnica de Catalunya, 2018-01-19)
Tesis
Acceso abiertoA visual stimulus can be presented in free space or through lens-based systems. Interestingly, it has been reported many times in the past that some subjects have poorer accommodative responses when optically stimulated, ... -
The design and implementation of a spectrally tuneable LED-based light sourde : towards a new era of intelligent illumination
(Universitat Politècnica de Catalunya, 2017-06-07)
Tesis
Acceso abiertoRising 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 ... -
Estudi i desenvolupament d'un nou sistema d'inspecció de stents basat en tècniques de metrologia òptica
(Universitat Politècnica de Catalunya, 2017-04-22)
Tesis
Acceso abiertoStent quality control is a critical process. Coronary stents have to be inspected 100% so no defective stent is implanted into a human body. We have developed an optical non-contact measurement instrument that provides ... -
Nuevas contribuciones para la medida objetiva de la difusión intraocular y su aplicación clínica
(Universitat Politècnica de Catalunya, 2017-04-27)
Tesis
Acceso abiertoImage formation in the retina is the first stage in the visual process (optical stage), which is completed with photoreceptor stimulation and distribution of the generated signals (retinal stage), transmission to the visual ... -
Gonio-hyperspectral imaging system based on light-emitting diodes for the analysis of automotive coatings
(Universitat Politècnica de Catalunya, 2016-12-19)
Tesis
Acceso abiertoGoniochromatic pigments, such as automotive coatings, are known by their appearance changes - especially of colour and visual texture - as a function of the angles of illumination and observation; they are classified as ... -
Calidad visual en pacientes con implante bilateral y simétrico de lentes intraoculares multifocales
(Universitat Politècnica de Catalunya, 2016-12-15)
Tesis
Acceso abiertoPURPOSE: 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 ... -
Continuous wave frequency modulated optical feedback (CWFM-OF) : theory and applications
(Universitat Politècnica de Catalunya, 2016-11-25)
Tesis
Acceso abierto
Realizado en/con: Karlsruher Institut für TechnologieDiese 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 ... -
Multimodal eye's optical quality (MEOQ)
(Universitat Politècnica de Catalunya, 2016-07-29)
Tesis
Acceso abierto
Realizado en/con: Karlsruher Institut für TechnologieWithin the visual system, the optics of the eye is responsible for forming images of external objects on the ocular fundus for its photo-reception and neural interpretation. However, the eye is not perfect and its capabilities ... -
Calidad óptica ocular en ojos sometidos a cirugía refractiva y afecciones patológicas
(Universitat Politècnica de Catalunya, 2016-01-29)
Tesis
Acceso abiertoThis 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 ... -
Desarrollo de un sistema de doble paso compacto y de bajo coste para la evaluación de la calidad óptica y la difusión intraocular
(Universitat Politècnica de Catalunya, 2015-12-02)
Tesis
Acceso abiertoThe 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 ...
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