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Proceedings Paper

Computer-based null test compensation for ophthalmic lenses
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Paper Abstract

In this paper, we will describe a method used to obtain the power error distribution map for a spherical well corrected ophthalmic lens. The proposed method uses a computer to perform a null test compensation to probe the real refractive correction state of the lens under test. The Hartman test is used to probe an ophthalmic lens and subtract the ideal power distribution map corresponding to the same lens design. In this way we obtain the power error distribution map of the lens. The proposed method may be useful in mass production of spherical ophthalmic lenses.

Paper Details

Date Published: 21 October 2004
PDF: 5 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.590627
Show Author Affiliations
Gerardo Trujillo-Schiaffino, Instituto Tecnologico de Chihuahua (Mexico)
Didia Patricia Salas-Peimbert, Instituto Tecnologico de Chihuahua (Mexico)
Daniel Malacara-Hernandez, Ctr. de Investigaciones en Optica (Mexico)
Daniel Malacara-Doblado, Ctr. de Investigaciones en Optica (Mexico)
Saul Almazan-Cuellar, Instituto Tecnologico de Chihuahua (Mexico)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

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