Tscherning Ellipses and Ray Tracing in Ophthalmic Lenses
- 1 July 1985
- journal article
- Published by Wolters Kluwer Health in Optometry and Vision Science
- Vol. 62 (7) , 447-455
- https://doi.org/10.1097/00006324-198507000-00003
Abstract
In this paper the exact shape of the solutions to the equations for lenses free of oblique astigmatism, as well as those free from curvature of field or peripheral focus error, are presented. These solutions, as expected, resemble the Tscherning ellipses, but strongly deformed.Keywords
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