Deflectometric method for the measurement of user power for ophthalmic lenses
| dc.contributor.author | Quiroga Mellado, Juan Antonio | |
| dc.contributor.author | Gómez Pedrero, José Antonio | |
| dc.contributor.author | Alonso Fernández, José | |
| dc.contributor.author | Vargas Balbuena, Javier | |
| dc.date.accessioned | 2023-06-20T03:35:13Z | |
| dc.date.available | 2023-06-20T03:35:13Z | |
| dc.date.issued | 2010-09-20 | |
| dc.description | © 2010 Optical Society of America. This work has been financially supported by the Spanish Ministry of Science and Technology through the project number DPI2009-09023. It has also benefited from the framework of the Spanish Optometry Network. | |
| dc.description.abstract | This paper presents a deflectometric technique to measure the power of an ophthalmic lens as perceived by the user. It is based on a calibrated camera acting as a pinhole in order to measure ray deflection along the same path as the visual axis when the lens is held in front of the eye. We have analyzed numerically the accuracy of our technique, and it has been compared experimentally with a commercial "lens mapper" and with the real user power calculated from the measured topography of the lens surfaces to state the reliability and accuracy of the presented technique. | |
| dc.description.department | Depto. de Óptica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Spanish Ministry of Science and Technology | |
| dc.description.sponsorship | Spanish Optometry Network | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/22768 | |
| dc.identifier.doi | 10.1364/AO.49.005125 | |
| dc.identifier.issn | 0003-6935 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1364/AO.49.005125 | |
| dc.identifier.relatedurl | http://www.opticsinfobase.org | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/43965 | |
| dc.issue.number | 27 | |
| dc.journal.title | Applied Optics | |
| dc.language.iso | eng | |
| dc.page.final | 5132 | |
| dc.page.initial | 5125 | |
| dc.publisher | The Optical Society of America | |
| dc.relation.projectID | DPI2009-09023 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 535 | |
| dc.subject.keyword | Progressive-Addition Lens | |
| dc.subject.keyword | Off-Axis Measurements | |
| dc.subject.keyword | Phase Objects | |
| dc.subject.keyword | Camera | |
| dc.subject.ucm | Óptica (Física) | |
| dc.subject.unesco | 2209.19 Óptica Física | |
| dc.title | Deflectometric method for the measurement of user power for ophthalmic lenses | |
| dc.type | journal article | |
| dc.volume.number | 49 | |
| dcterms.references | 1. B. Bourdoncle, J. P. Chauveau, and J. L. Mercier, “Traps in displaying optical performances of a progressive-addition lens,” Appl. Opt. 31, 3586–3593 (1992). 2. D. A. Atchinson, M. Kris, J. E. Sheedy, and I. L. Bailey, “Use of the Humphrey Lens Analyzer for off-axis measurements of spectacle lenses,” Optom. Vis. Sci. 68, 299–308 (1991). 3. D. A. Atchinson and M. Kris, “Off- axis measurement of a plano distance power progressive addition lens,” Ophthal. Physiol. Opt. 13, 322–326 (1993). 4. K. Gnanvo, Z. Y. Wu, J. L. de Bougrenet de la Tocnaye, and L. Liu, “Large-aperture automatic focimeter for the measureement of optical power and other optical characteristics of ophthalmic lenses,” Appl. Opt. 41, 5997–6005 (2002). 5. H. Canabal and J. Alonso, “Automatic wavefront measurement technique using a computer display and a chargecoupled device camera,” Opt. Eng. 41, 822 (2002). 6. J. A. Quiroga, D. Crespo, and E. Bernabeu, “Fourier transform method for automatic processing of moiré deflectograms,” Opt. Eng. 38, 974–982 (1999). 7. J. H. Massig, “Measurement of phase objects by simple means,” Appl. Opt. 38, 4103–4105 (1999). 8. R. Hartley and A. Zisserman, Multiple View Geometry in Computer Vision, 2nd ed. (Cambridge University Press, 2008). 9. Z. Zhang, “A flexible new technique for camera calibration,” IEEE Trans. Pattern Anal. Mach. Intell. 22, 1330–1334 (2000). 10. J. Y. Bouget, “Camera calibration toolbox for MatLab,” http://www.vision.caltech.edu/bouguetj/calib_doc/ (2010). 11. J. Vargas, J. A. Quiroga, and M. J. Terrón, “Flexible calibration procedure for fringe projection profilometry,” Opt. Eng. 46, 023601 (2007). 12. J. Alonso, J. A. Gómez-Pedrero, and E. Bernabeu, “Local dioptric power matrix in a progressive addition lens,” Ophthal. Physiol. Opt. 17, 522–529 (1997). 13. J. A. Gómez-Pedrero, J. Alonso, H. Canabal, and E. Bernabeu, “A generalization of Prentice’s law for lenses with arbitrary refracting surfaces,” Ophthal. Physiol. Opt. 18, 514–520 (1998). 14. M. Born and E. Wolf, Principles of Optics, 6th ed. (Pergamon, 1980). 15. O. Kafri, “Noncoherent method for mapping phase objects,” Opt. Lett. 5, 555–557 (1980). | |
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