Testing a fast off-axis parabolic mirror using tilted null-screens

Maximino Avendanyo-Alejo; Manuel Campos-Garcia; Rufino Diaz-Uribe

doi:10.1117/12.611598

14 February 2005 Testing a fast off-axis parabolic mirror using tilted null-screens

Maximino Avendanyo-Alejo, Manuel Campos-Garcia, Rufino Diaz-Uribe

Proceedings Volume 5776, Eighth International Symposium on Laser Metrology; (2005) https://doi.org/10.1117/12.611598
Event: Eighth International Conference on Laser Metrology, 2005, Merida, Mexico

Abstract

We propose the design of tilted null screens in order to test the off-axis segments of conic surfaces. Furthermore we reduce the size of the screen in order to increase the performance of the test. The sensitivity is increased while the size of the screen is reduced in the saggital caustic region and vice versa in the tangential caustic region. Further analysis and experimental results are presented, for an off-axis concave parabolic mirror which has an elliptical aperture, with a distance offset Xc=25.4mm, the radius of curvature at the vertex R= 20.4mm, major axis of the mirror DM=49.4mm and minor axis Dm=29.5mm.

Citation Download Citation

Maximino Avendanyo-Alejo, Manuel Campos-Garcia, and Rufino Diaz-Uribe "Testing a fast off-axis parabolic mirror using tilted null-screens", Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); https://doi.org/10.1117/12.611598

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