Real time modulable multifocality through annular optical elements

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Title: Real time modulable multifocality through annular optical elements
Authors: Pérez Rodríguez, Jorge | Espinosa, Julián | Illueca Contri, Carlos | Vázquez Ferri, Carmen | Moreno Soriano, Ignacio
Research Group/s: Optica y Ciencias de la Visión
Center, Department or Service: Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad Miguel Hernández. Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica
Keywords: Lens system design | Image formation theory | Imaging systems
Knowledge Area: Óptica
Date Created: 2008
Issue Date: 28-Mar-2008
Publisher: Optical Society of America
Citation: PÉREZ RODRÍGUEZ, Jorge, et al. “Real time modulable multifocality through annular optical elements”. Optics Express. Vol. 16, No. 7 (March 2008). ISSN 1094-4087, pp. 5095-5106
Abstract: We present and analyze new multifocal optical elements based on an annular distribution of the transmittance. These elements provide selectable number of foci and can be designed to work between two fixed positions or even to provide extended focal depth. The energy of the foci can be modulated through a single parameter that controls the area of each ring. In our study we analyze the quality of the peaks and also the limit number of foci that can be obtained. The properties shown by these elements make them usable in instrumental optics or in ophthalmic optics, as new intraocular implants, where multifocal elements are required. The implementation has been done on a twisted nematic spatial light modulator, thus allowing real time reconfiguration of the element.
Sponsor: This work has been supported by the Ministerio de Educación y Ciencia through the projects nr. FIS2005-05053, FIS2006-13037-C02-02 and by the University of Alicante through the project GRE07-7P.
URI: http://hdl.handle.net/10045/4703
ISSN: 1094-4087
DOI: 10.1364/OE.16.005095
Language: eng
Type: info:eu-repo/semantics/article
Rights: This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-7-5095. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Peer Review: si
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