Double light source Ronchi Tester for detection of ruling rotations

Abstract In this work, a modified Ronchi tester with a double light source has been implemented for evaluating and minimizing the rotation angle of the Ronchi ruling. The ruling rotations produced by positioning errors can become very small and could be going unnoticed (0.1°), however we have demons...

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Bibliographic Details
Published inPhysica scripta Vol. 99; no. 5; pp. 55522 - 55548
Main Authors Nuñez-Alfonso, Juan Manuel, Salinas-Luna, Javier, Nuñez-Moreno, Yuliette Katinka, Castro-Chacón, Joel Humberto, Monay-Arredondo, José Luis, Martínez-Chávez, Benjamín, Ramos-Alcaraz, Gustavo Enrique, Meza-Sánchez, Iliana Marlen, Alonso-Arevalo, Miguel Angel
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.05.2024
Subjects
aberration
diffraction
mirror
optical test
Ronchi tester
ruling
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Summary:Abstract In this work, a modified Ronchi tester with a double light source has been implemented for evaluating and minimizing the rotation angle of the Ronchi ruling. The ruling rotations produced by positioning errors can become very small and could be going unnoticed (0.1°), however we have demonstrated that for these angle sizes the aberrations in the wavefront can not be completely neglicted. Accordingly with a rotatory mechanical device for correctioning the Ronchi ruling has been also added with this proposals. With our aim, in spite of non-straight shape that the ronchigrams can present in the patterns, the process of the ruling rotation degree measuring has hurled some experimental results when three concave mirrors: a concave spherical mirror, a concave parabolic mirror (the primary mirror of a Newtonian telescope) and a spherical concave mirror (the primary mirror of a Maksutov-Cassegrain telescope) have been tested.
Bibliography:PHYSSCR-126158.R1
ISSN:0031-8949
1402-4896
DOI:10.1088/1402-4896/ad368d