Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz

ilustraciones, gráficas, tablas

Autores:: Benavides Lara, Juliana Patricia

Tipo de recurso:

Fecha de publicación:: 2021

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: spa

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dc.title.spa.fl_str_mv	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz
dc.title.translated.eng.fl_str_mv	Measurement of the profile of the convex surface of a hard contact lens by the projection method of a line of light
title	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz
spellingShingle	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz 530 - Física::535 - Luz y radiación relacionada Lentes de Contacto Contact Lenses Optics Lenses Óptica Lentes Topografía Lentes de contacto Método de triangulación Proyección de luz Lámpara de hendidura Pruebas de Hartmann Radio de curvatura Topography Contact lenses Triangulation method Light projection Slit lamp Hartmann tests Radius of curvature
title_short	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz
title_full	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz
title_fullStr	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz
title_full_unstemmed	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz
title_sort	Medición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luz
dc.creator.fl_str_mv	Benavides Lara, Juliana Patricia
dc.contributor.advisor.none.fl_str_mv	Mejía, Yobani
dc.contributor.author.none.fl_str_mv	Benavides Lara, Juliana Patricia
dc.contributor.researchgroup.spa.fl_str_mv	Optica Aplicada - UN
dc.subject.ddc.spa.fl_str_mv	530 - Física::535 - Luz y radiación relacionada
topic	530 - Física::535 - Luz y radiación relacionada Lentes de Contacto Contact Lenses Optics Lenses Óptica Lentes Topografía Lentes de contacto Método de triangulación Proyección de luz Lámpara de hendidura Pruebas de Hartmann Radio de curvatura Topography Contact lenses Triangulation method Light projection Slit lamp Hartmann tests Radius of curvature
dc.subject.decs.spa.fl_str_mv	Lentes de Contacto
dc.subject.decs.eng.fl_str_mv	Contact Lenses
dc.subject.lemb.eng.fl_str_mv	Optics Lenses
dc.subject.lemb.spa.fl_str_mv	Óptica Lentes
dc.subject.proposal.zho.fl_str_mv	Topografía
dc.subject.proposal.spa.fl_str_mv	Lentes de contacto Método de triangulación Proyección de luz Lámpara de hendidura Pruebas de Hartmann Radio de curvatura
dc.subject.proposal.eng.fl_str_mv	Topography Contact lenses Triangulation method Light projection Slit lamp Hartmann tests Radius of curvature
description	ilustraciones, gráficas, tablas
publishDate	2021
dc.date.accessioned.none.fl_str_mv	2021-10-07T14:38:04Z
dc.date.available.none.fl_str_mv	2021-10-07T14:38:04Z
dc.date.issued.none.fl_str_mv	2021-09-09
dc.type.spa.fl_str_mv	Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv	info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv	Text
dc.type.redcol.spa.fl_str_mv	http://purl.org/redcol/resource_type/TM
status_str	acceptedVersion
dc.identifier.uri.none.fl_str_mv	https://repositorio.unal.edu.co/handle/unal/80410
dc.identifier.instname.spa.fl_str_mv	Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv	Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv	https://repositorio.unal.edu.co/
url	https://repositorio.unal.edu.co/handle/unal/80410 https://repositorio.unal.edu.co/
identifier_str_mv	Universidad Nacional de Colombia Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv	spa
language	spa
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dc.rights.accessrights.spa.fl_str_mv	info:eu-repo/semantics/openAccess
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dc.format.extent.spa.fl_str_mv	x, 94 páginas
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dc.publisher.spa.fl_str_mv	Universidad Nacional de Colombia
dc.publisher.program.spa.fl_str_mv	Bogotá - Ciencias - Maestría en Ciencias - Física
dc.publisher.department.spa.fl_str_mv	Departamento de Física
dc.publisher.faculty.spa.fl_str_mv	Facultad de Ciencias
dc.publisher.place.spa.fl_str_mv	Bogotá, Colombia
dc.publisher.branch.spa.fl_str_mv	Universidad Nacional de Colombia - Sede Bogotá
institution	Universidad Nacional de Colombia
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spelling	Atribución-NoComercial-CompartirIgual 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Mejía, Yobani45a104fc02efd645f3585003175c8e44600Benavides Lara, Juliana Patricia8bd878ca117dec05d4ccf569180786e7Optica Aplicada - UN2021-10-07T14:38:04Z2021-10-07T14:38:04Z2021-09-09https://repositorio.unal.edu.co/handle/unal/80410Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, gráficas, tablasEn el presente trabajo se propone implementar un método geométrico que permita realizar mediciones topográficas de superficies similares a las lentes de contacto. Para esto, se exploró e implementó el método de triangulación con la proyección de una franja de luz blanca proveniente de una lámpara de hendidura, la cual es comúnmente utilizada en optometría. La franja es registrada mediante un sistema óptico que está ubicado a un ángulo definido con respecto a la dirección de incidencia de la luz y por consiguiente posee una geometría que permite utilizar el principio de triangulación para la medición de cambios en la altura sobre la superficie y posteriormente reconstruirla. Se aplicó el método para la medición de tres moldes de polimetilmetacrilato (PMMA) con diferente radio de curvatura obteniendo resultados consistentes con los valores nominales dados por el fabricante. Adicionalmente, se implementaron dos configuraciones con ángulos de triangulación distintos en donde se identificó que al incrementar el ángulo hay una mejora en la resolución de la medición. Finalmente, los resultados obtenidos por medio de esta técnica se compararon con mediciones realizadas con un topógrafo basado en la prueba de Hartmann encontrando que es un método prometedor para ser usado como complemento en la inspección de superficies. (Texto tomado de la fuente).Hereby I propose the implementation of a geometric method that enables the topographic measurement of contact lens-like surfaces. For this purpose, I explored and implemented the triangulation method with the projection of a fringe of light generated by a slit lamp, which is commonly used in optometry. The fringe is registered by an optic system located at a given angle with respect to the incidence direction of the light and hence, the resulting geometry allows the implementation of the triangulation principle for the measurement of height changes over the surface and its subsequent reconstruction. I applied the method for the measurement of three Poly(methyl methacrylate) (PMMA) molds with different radius of curvature and obtained results that were consistent with the nominal values provided by the manufacturer. In addition, I implemented two setups with different triangulation angles in which I observed an improvement in the measurement resolution as the angle was increased. Finally, the results obtained by means of this method were compared to the measurements performed with a topographer based on the Hartmann test, finding that the former is a promising complementary method in surfaces inspection.MaestríaMagíster en Ciencias - FísicaTopografiax, 94 páginasapplication/pdfspaUniversidad Nacional de ColombiaBogotá - Ciencias - Maestría en Ciencias - FísicaDepartamento de FísicaFacultad de CienciasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá530 - Física::535 - Luz y radiación relacionadaLentes de ContactoContact LensesOpticsLensesÓpticaLentesTopografíaLentes de contactoMétodo de triangulaciónProyección de luzLámpara de hendiduraPruebas de HartmannRadio de curvaturaTopographyContact lensesTriangulation methodLight projectionSlit lampHartmann testsRadius of curvatureMedición del perfil de la cara convexa de una lente de contacto dura mediante el método de proyección de una línea de luzMeasurement of the profile of the convex surface of a hard contact lens by the projection method of a line of lightTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMN. 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Springer International Publishing, Cham, 2014.EstudiantesInvestigadoresMaestrosPúblico generalORIGINAL1018478160.2021.pdf1018478160.2021.pdfTesis de Maestría en Ciencias - Físicaapplication/pdf18114668https://repositorio.unal.edu.co/bitstream/unal/80410/3/1018478160.2021.pdfa62fba2ca826afde3216ac3dc1d3da8eMD53LICENSElicense.txtlicense.txttext/plain; charset=utf-83964https://repositorio.unal.edu.co/bitstream/unal/80410/1/license.txtcccfe52f796b7c63423298c2d3365fc6MD51THUMBNAIL1018478160.2021.pdf.jpg1018478160.2021.pdf.jpgGenerated Thumbnailimage/jpeg4487https://repositorio.unal.edu.co/bitstream/unal/80410/4/1018478160.2021.pdf.jpg5d8ad563b68ecff60bacfe5f0430da18MD54unal/80410oai:repositorio.unal.edu.co:unal/804102024-07-30 23:11:24.756Repositorio Institucional Universidad Nacional de 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