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Technical improvements applied to a double-pass setup for performance and cost optimization
Sanabria Ortega, Fernando Guillermo; Aldaba Arévalo, Mikel; Díaz Doutón, Fernando; García Guerra, Carlos Enrique; Pujol Ramo, Jaume
Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria; Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica
We have studied the possibility of improving the performance, simplifying, and reducing the cost of a double-pass system by the use of alternative technologies. The system for correcting the spherical correction has been based on a focusable electro-optical lens, and a recording device based on CMOS technology and a superluminescent diode (SLED) light source have been evaluated separately. The suitability of the CMOS camera has been demonstrated, while the SLED could not break the speckle by itself. The final experimental setup, consisting of a CMOS camera and a laser diode, has been compared with a commercial double-pass system, proving its usefulness for ocular optical quality and scattering measurements. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Àrees temàtiques de la UPC::Ciències de la visió::Optometria
Àrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica
Electrooptics
Liquid lenses
Quality control--Optical methods
Eye--Refractive errors
Diodes
electro-optical liquid lens
tunable lens
optical quality
eye refraction
superluminescent diode
laser diode
double-pass
scattering
RETINAL-IMAGE QUALITY
WAVE-FRONT SENSOR
IN-SITU KERATOMILEUSIS
HARTMANN-SHACK SENSOR
POINT-SPREAD FUNCTION
OPTICAL-QUALITY
HUMAN EYE
SYSTEM
AGE
ABERRATIONS
Electroòptica
Ulls -- Acomodació i refracció
Díodes
Lents líquides
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
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