Computer-based null test compensation for ophthalmic lenses

Gerardo Trujillo-Schiaffino; Didia Patricia Salas-Peimbert; Daniel Malacara-Hernandez; Daniel Malacara-Doblado; Saul Almazan-Cuellar

doi:10.1117/12.590627

21 October 2004 Computer-based null test compensation for ophthalmic lenses

Gerardo Trujillo-Schiaffino, Didia Patricia Salas-Peimbert, Daniel Malacara-Hernandez, Daniel Malacara-Doblado, Saul Almazan-Cuellar

Author Affiliations +

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.590627
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

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.

Citation Download Citation

Gerardo Trujillo-Schiaffino, Didia Patricia Salas-Peimbert, Daniel Malacara-Hernandez, Daniel Malacara-Doblado, and Saul Almazan-Cuellar "Computer-based null test compensation for ophthalmic lenses", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.590627

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