Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/23106

Programmable diffractive lens for ophthalmic application
Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet; Romero Pérez, Lenny Alexandra; Ramirez, Natalia
Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria; Universitat Politècnica de Catalunya. GOAPI - Grup d´Òptica Aplicada i Processament d´Imatge
Pixelated liquid crystal displays have been widely used as spatial light modulators to implement programmable diffractive optical elements, particularly diffractive lenses. Many different applications of such components have been developed in information optics and optical processors that take advantage of their properties of great flexibility, easy and fast refreshment, and multiplexing capability in comparison with equivalent conventional refractive lenses. We explore the application of programmable diffractive lenses displayed on the pixelated screen of a liquid crystal on silicon spatial light modulator to ophthalmic optics. In particular, we consider the use of programmable diffractive lenses for the visual compensation of refractive errors (myopia, hypermetropia, astigmatism) and presbyopia. The principles of compensation are described and sketched using geometrical optics and paraxial ray tracing. For the proof of concept, a series of experiments with artificial eye in optical bench are conducted. We analyze the compensation precision in terms of optical power and compare the results with those obtained by means of conventional ophthalmic lenses. Practical considerations oriented to feasible applications are provided. © 2014 Society of Photo-Optical Instrumentation Engineers.
Àrees temàtiques de la UPC::Ciències de la visió::Instruments òptics i optomètrics::Lents oftàlmiques
Àrees temàtiques de la UPC::Ciències de la visió::Optometria
Ophthalmic lenses
Eye--Refractive errors
Liquid crystal displays
diffractive optical element
liquid crystal display
ophthalmic lens
programmable lens
spatial light modulator
visual ametropia compensation
Lents oftàlmiques
Ulls -- Acomodació i refracció
Pantalles de cristall líquid
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
Artículo
         

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet; Romero Pérez, Lenny Alexandra; Ramirez, Natalia
Romero Pérez, Lenny Alexandra; Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet
Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet; Kotynski, Rafal; Chalasinska-Macukow, Katarzyna
Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet