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Browsing by Author "Furlan, Walter D."

Now showing items 1-20 of 33

3D printed diffractive terahertz lenses

Furlan, Walter D.; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio; Zagrajek, Przemyslaw; Czerwinska, Elzbieta; Szustakowski, Mieczyslaw (The Optical Society, 2016)

[EN] A 3D printer was used to realize custom-made diffractive THz lenses. After testing several materials, phase binary lenses with periodic and aperiodic radial profiles were designed and constructed in polyamide material ...
A computer-assisted experiment to study the influence of the Point Spread Function in the image formation process

Ferrando Martín, Vicente; Remón Martín, Laura; Salinas Marín, Isabel; Monsoriu Serra, Juan Antonio; Furlan, Walter D. (IOP Publishing, 2018)

[EN] We present a new open experimental setup assisted with LabView to be used to teach the concept of the point spread function (PSF). The PSF describes the response of an image-forming system to a point object. The PSF ...
A new trifocal corneal inlay for presbyopia

Furlan, Walter D.; Montagud-Martínez, Diego; Ferrando, Vicente; Garcia-Delpech, Salvador; Monsoriu Serra, Juan Antonio (Nature Publishing Group, 2021-03-23)

[EN] Corneal inlays (CIs) are the most recent surgical procedure for the treatment of presbyopia in patients who want complete independence from the use of glasses or contact lenses. Although refractive surgery in presbyopic ...
Aperiodic Diffract: Estudio de redes difractivas

Ferrando Martín, Vicente; Calatayud Calatayud, Arnau; Remón Martín, Laura; Monsoriu Serra, Juan Antonio; Pons-Martí, Amparo; Furlan, Walter D. (Universitat Politècnica de València, 2014-03-31)

[EN] In this work we introduce a virtual laboratory, APERIODIC DIFFRACT, developed in Matlab GUI (Graphical User Interface) as an informatics tool for teaching the diffractive properties of aperiodic gratings. This GUI ...
Caracterización de lentes multifocales mediante un laboratorio virtual basado en la óptica de Fourier

Ferrando, Vicente; Montagud-Martínez, Diego; Remón, Laura; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (EscuelaTécnica Superior de Ingeniería del Diseño. Universitat Politècnica de València, 2022-07-22)

[ES] En este trabajo presentamos un nuevo laboratorio virtual, desarrollado en Python, que permite la caracterización óptica de una serie de lentes multifocales bajo diferentes parámetros de configuración (esfera, cilindro, ...
Comparison of two different devices to assess intraocular lenses

Furlan, Walter D.; Remón Martín, Laura; Llorens, Clara; Rodríguez-Vallejo, Manuel; Monsoriu Serra, Juan Antonio (Elsevier, 2016)

[EN] In this paper, we have compared the performance of two commercial systems, Kaleo-I and IOLA Plus, in the characterization of monofocal intraocular lenses (IOLs) according to the International Standard requirements ...
Designing a new test for contrast sensitivity function measurement with iPad

Rodríguez-Vallejo, Manuel; Remón Martín, Laura; Monsoriu Serra, Juan Antonio; Furlan, Walter D. (Elsevier, 2015-04)

[EN] Purpose: To introduce a new application (ClinicCSF) to measure Contrast Sensitivity Function (CSF) with tablet devices, and to compare it against the Functional Acuity Contrast Test (FACT). Methods: A total of 42 ...
Diffractive corneal inlay for presbyopia

Furlan, Walter D.; Garcia-Delpech, Salvador; Udaondo, Patricia; Remón Martín, Laura; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio (John Wiley & Sons, 2017)

[EN] A conceptually new type of corneal inlays for a customized treatment of presbyopia is presented. The diffractive inlay consists on a small aperture disc having an array of micro-holes distributed inside the open zones ...
Diffractive m-bonacci lenses

Machado, Federico; Ferrando, Vicente; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (The Optical Society, 2017)

[EN] Fibonacci zone plates are proving to be promising candidates in image forming devices. In this letter we show that the set of Fibonacci zone plates are a particular member of a new family of diffractive lenses which ...
Diseño y desarrollo de un espectrómetro óptico versátil de bajo coste

Ferrando, Vicente; Monreal, Javier; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (Fundación Técnica Industrial, 2017)

[EN] In this work, the processes of designing, developing and prototyping an instrument to measure the visible spectrum is shown in detail. The objective is to obtain a low-cost device, reproducible and technically competitive ...
Encriptación óptica empleando llaves Weierstrass-Mandelbrot

Giménez, Fernando; Monsoriu, Juan A.; Barrera, John Fredy; Furlan, Walter D.; Tebaldi, Myrian; Bolognini, Néstor; Torroba, Roberto (Universitat Politècnica de València, 2013-06-02)

[EN] This paper presents the generation of encryption keys using the local oscillating properties of the partial sums of Weierstrass-Mandelbrot fractal function. In this way, the security key can be replicated if the ...
Estudio de las aberraciones en la formación de imágenes mediante un laboratorio virtual

Ferrando, Vicente; Remón Martín, Laura; Pons-Martí, A.; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (Editorial Universitat Politècnica de València, 2014-07-16)

[Otros] In this work we present a virtual laboratory, SIMAG, developed in MATLAB GUI (Graphical User Interface) to be used in Physics or Optics and Opthometry courses as an informatic tool which allows to do different ...
Focusing properties of diffractive lenses constructed with the aperiodic m-bonacci sequence

Furlan, Walter D.; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio (The International Society for Optical Engineering., 2014)

[EN] In this contribution we present a new family of diffractive lenses which are designed using the m-bonacci sequence. These lenses are a generalization of the Fibonacci Zone Plates previously reported. Diffractive ...
Fractal-structured multifocal intraocular lens

Remón Martín, Laura; Garcia-Delpech, Salvador; Udaondo, Patricia; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio; Furlan, Walter D. (Public Library of Science, 2018)

[EN] In this work, we present a new concept of IOL design inspired by the demonstrated properties of reduced chromatic aberration and extended depth of focus of Fractal zone plates. A detailed description of a proof of ...
Imaging quality of multifocal intraocular lenses: automated assessment setup

Calatayud, Arnau; Remón, Laura; Martos, Julio; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (Blackwell Publishing, 2013-07)

[EN] Purpose: A new technique for the assessment of the optical quality of multifocal intraocular lenses (MIOLs) under monochromatic and polychromatic illumination is presented. Methods: The system provides, in a totally ...
In Vitro Chromatic Performance of Three Presbyopia-Correcting Intraocular Lenses with Different Optical Designs

Montagud-Martínez, Diego; Ferrando, Vicente; Martínez-Espert, Anabel; Garcia-Delpech, Salvador; Monsoriu Serra, Juan Antonio; Furlan, Walter D. (MDPI AG, 2022-03)

[EN] Most of the new premium models of intraocular lenses for presbyopia correction use diffractive optics in their optical design. The presence of multiple foci and the difference of the diffractive efficiency for different ...
Influence of different types of astigmatism on visual acuity

Remón Martín, Laura; Monsoriu Serra, Juan Antonio; Furlan, Walter D. (Elsevier, 2017)

[EN] Purpose To investigate the change in visual acuity (VA) produced by different types of astigmatism (on the basis of the refractive power and position of the principal meridians) on normal accommodating eyes. Methods The ...
Inter-Display Reproducibility of Contrast Sensitivity Measurement with iPad

Rodriguez-Vallejo, Manuel; Monsoriu Serra, Juan Antonio; Furlan, Walter D. (Lippincott Williams & Wilkins, 2016)

[EN] Purpose. To evaluate the reliability of measuring CS with uncalibrated iPads. Methods. SixrandomiPadswithretinadisplaywerecalibratedwithacolorimeterandthecorrelationbetweenLuminance(L)and pixel level (y) was computed ...
Multifocal intraocular lenses with fractal geometry

Remón Martín, Laura; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (Sociedad Espanola de Optica, 2015)

[ES] Esta publicación resume los resultados de la tesis doctoral: Diseño, Fabricación y Control de Calidad de Lentes Intraoculares Multifocales, presentada por L. Remón en la Universitat Politècnica ...
Multiple-plane image formation by Walsh zone plates

Machado-Olivares, Federico Jose; Ferrando Martín, Vicente; Gimenez Palomares, Fernando; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (The Optical Society, 2018)

[EN] A radial Walsh filter is a phase binary diffractive optical element characterized by a set of concentric rings that take the phase values 0 or ¿, corresponding to the values + 1 or ¿1 of a given radial Walsh function. ...