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Proceedings Paper

Testing of a convergent optics system off-axis using a Ronchi rule on a nodal bench
Author(s): J. F. M. Escobar-Romero; M. E. Percino-Zacarias; F. S. Granados-Agustín
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Paper Abstract

In this paper, we propose to use a Ronchi rule on a Nodal Bench to test convergent optics system. The Ronchi rule is of frequency medium, between 200 and 500 lines/inches. Besides, this test takes advantage to measure nodal plane and focal distance on-axis and off-axis of some system optics with Nodal Bench. The optics system under test is illuminated with a plane wavefront and it is focused to focal distance of the optics system under test. Ronchi rule is placed in exit pupil of optics system, it generate interferograms with the aberrations of optics system. In this interferograms we observe fines fringes of interference which are generated by the rule frequency like the rule works as a reflections multiples interferometer. The interferograms are displayed on a computer by a CCD, it is placed on the focal point of the system under test. We show some preliminary results of this test.

Paper Details

Date Published: 25 October 2011
PDF: 7 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801129 (25 October 2011); doi: 10.1117/12.903415
Show Author Affiliations
J. F. M. Escobar-Romero, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
M. E. Percino-Zacarias, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
F. S. Granados-Agustín, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)


Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World
Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Rufino Díaz-Uribe; Rufino Díaz-Uribe, Editor(s)

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