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Título:	Ray tracing for ophthalmic optics. Specific developments for GRIN materials
Autor/a:	Francisco Moneo, J. Ramón de; Juvells Prades, Ignacio; Vallmitjana i Rico, Santiago; Bosch i Puig, Salvador; Carnicer González, Arturo; Labastida i Juan, Ignasi, 1970-; Pérez Tudela, Julio D.
Otros autores:	Universitat de Barcelona
Abstract:	In this work we present the developments for the simulation of image formation through an ophthalmic lens. The procedure is, essentially an exact ray tracing taking into account the particular mobility conditions of the exit pupil. This leads to the computation of astigmatism as a function of the field angle considered. In the computer program, the use of a commercial glass with a gradient in the refractive index (GRIN material) is foreseen. This latter feature proves to be useful for two practical objectives: modifying the power and the astigmatism of the lens. To illustrate these points, an example based on a lens made by deforming a plane parallel plate of GRIN material will be presented.
Materia(s):	-Lents oftàlmiques -Òptica -Ophthalmic lenses -Optics
Derechos:	(c) Society of Photo-Optical Instrumentation Engineers (SPIE), 1997
Tipo de documento:	Artículo
Editor:	Society of Photo-Optical Instrumentation Engineers (SPIE)
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