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Proceedings Paper

Rating of tinted ophthalmic lenses
Author(s): Francoise Vienot; Fatima Benhalima; Hans Brettel; Bernard Bourdoncle; Alain Colonna de Lega
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Paper Abstract

This study aims at establishing the relationship between the spectral transmission characteristics of tinted ophthalmic lenses and the visual percept of the observer looking through. We hypothesize that the rating of tinted lenses originates from what the observer sees rather than what the glass looks like. We develop a model for color acceptance by calculating the color distortions for a collection of colored surfaces that are representative of the real environment using the spectral reflectance of the surfaces and the spectral transmittance of the lens. Then we apply the model to a collection of real tinted ophthalmic lenses and derive statistical indices that describes the global color distortion induced by each lens. Preliminary results show a significant agreement between the subjective rating and the objective color distortion index. We conclude that our model allows to predict the acceptance/rejection judgement of observers for a tinted ophthalmic lens of known spectral transmittance.

Paper Details

Date Published: 6 June 2002
PDF: 4 pages
Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); doi: 10.1117/12.464647
Show Author Affiliations
Francoise Vienot, Museum National d'Histoire Naturelle (France)
Fatima Benhalima, INM-CNAM (France)
Hans Brettel, Centre National de la Recherche Scientifique and Ecole Nationale Superieure des Telecommun (France)
Bernard Bourdoncle, Essilor (France)
Alain Colonna de Lega, Essilor (France)


Published in SPIE Proceedings Vol. 4421:
9th Congress of the International Colour Association

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