RT Journal Article
T1 Deflectometric measurement of mechanical spectacle lens deformation
A1 Peral Cerda, María Asunción
A1 Alonso Fernández, José
A1 Canos Sanz, Joán
A1 Bernabéu Martínez, Eusebio
AB The warpage of a set of six hard resin spherical lenses was measured when they were compressed by means of the tangential force exerted by a metal frame. The technique employed to measure the lenses improves over previous work both because greater precision is achieved, and because radii of curvature are measured in two perpendicular meridians. In this work, a representative sample of lenses has been used in order to test the way in which deformation depends on lens power and base. It is found that the induced warpage is enough to move the tested lenses between different base families, spoiling the initial design of the manufacturer.
PB Elsevier Science B. V.
SN 0275-5408
YR 2000
FD 2000-11
LK https://hdl.handle.net/20.500.14352/59234
UL https://hdl.handle.net/20.500.14352/59234
LA eng
NO Peral Cerda, M. A., Alonso Fernández, J., Canos Sanz, J., Bernabéu Martínez, E. «Deflectometric Measurement of Mechanical Spectacle Lens Deformation». Ophthalmic and Physiological Optics, vol. 20, n.o 6, noviembre de 2000, pp. 473-79. DOI.org (Crossref), https://doi.org/10.1111/j.1475-1313.2000.tb01125.x.
NO We thank T. Yonte for her teaching in the use of the moiré deflectometer. We also thank C. Illueca for his suggestions. This work has been supported by the project TAP98-070 1/97, from the Comisión Interministerial de Ciencia y Tecnología of Spain.
NO Comisión Interministerial de Ciencia y Tecnología (España)
DS Docta Complutense
RD 9 jun 2025