New simple geometrical test for aspheric lenses and mirrors

The simplest two qualitative geometrical tools to evaluate lenses and mirrors are the Ronchi and Hartmann tests. They only require a knife or a ruling and a point light source. Frequently, the main desired characteristic of a test is not high sensitivity and precision, but speed and simplicity. The...

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Published in:Optical Engineering 2000-08, Vol.39 (8), p.2143-2148
Main Authors: Lo´pez-Ram ´rez, Juan Manuel, Malacara-Doblado, Daniel, Malacara-Herna´ndez, Daniel
Format: Article
Language:English
Subjects:
aspheric lenses
optical testing
Ronchi test
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description The simplest two qualitative geometrical tools to evaluate lenses and mirrors are the Ronchi and Hartmann tests. They only require a knife or a ruling and a point light source. Frequently, the main desired characteristic of a test is not high sensitivity and precision, but speed and simplicity. The test proposed in this paper does not require any additional lenses, other optical elements, or even point light sources, making it quite simple. Its sensitivity greatly depends on the actual testing configuration. In the test to be described here only a flat screen with an array of straight and parallel lines is necessary. ©
doi_str_mv 10.1117/1.1304856
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subjects aspheric lenses
optical testing
Ronchi test
title New simple geometrical test for aspheric lenses and mirrors
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