Study and analysis of catadioptric null compensating test

Long Zhang; Wenqi Hu; Liehua Zheng; Peiming Hao

doi:10.1117/12.2242492

27 September 2016 Study and analysis of catadioptric null compensating test

Long Zhang, Wenqi Hu, Liehua Zheng, Peiming Hao

Proceedings Volume 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment; 96842Y (2016) https://doi.org/10.1117/12.2242492
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

Aiming at the concave aspheric mirror with large aperture or large relative aperture, catadioptric null compensating test is proposed. To carry out the null compensation test of concave aspheric surface, double lens and single mirror are used. The catadioptric compensator is set in front of curvature center of tested mirror. Based on third-order aberration theory, making spherical aberration coefficient S₁=0, the calculating formulas of initial configuration structure parameters are derivated. This novel testing method is studied by design of catadioptirc compensators for the following three situations, the design results and drawings are given: 1) mirrors(F/2, e²=1.05) with different apertures; 2) mirrors(Φ₀=2000mm, e²=1.05) with different relative apertures; 3) to design catadioptric compensators for mirror (Φ₀=2000mm, e²=1.05, r₀=8000mm) with different inner obscuration ratio. The analysis shows that this new method is available to test concave aspheric mirror with large aperture or large relative aperture.

Citation Download Citation

Long Zhang, Wenqi Hu, Liehua Zheng, and Peiming Hao "Study and analysis of catadioptric null compensating test", Proc. SPIE 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 96842Y (27 September 2016); https://doi.org/10.1117/12.2242492

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KEYWORDS

Mirrors

Combined lens-mirror systems

Aspheric optics

Wavefronts

Aspheric lenses

Aberration theory

Monochromatic aberrations

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