Manufacture of &#934;600 R-C optical system

Peiming Hao; Xinglong Li; Liyin Yuan; Kexin Li; Lianxiao Fu; Senlin Zhou; Xianmin Wang

doi:10.1117/12.674046

30 May 2006 Manufacture of Φ600 R-C optical system

Peiming Hao, Xinglong Li, Liyin Yuan, Kexin Li, Lianxiao Fu, Senlin Zhou, Xianmin Wang

Proceedings Volume 6148, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 614808 (2006) https://doi.org/10.1117/12.674046
Event: 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2005, Xian, China

Abstract

In the field of space flight, aviation and astronomy, R-C (Ritchey-Chretien) camera composed by two hyperboloid mirrors is one of the main instruments for detection and photography. A R-C system has been designed, which is composed of a primary mirror with clear aperture of Φ₀ = 600 mm, radius of curvature of 1440 mm, conic constant k₁ of-1.00486, relative aperture A₁ of 1/1.2, lightweight ratio of 53%; and a secondary mirror with clear aperture of 12-92 mm, curvature radius of 236.2 mm, conic constant k₂ of-1.66923. Therefore, the focal length of the R-C optical system is 6000 mm, and the relative aperture A is 1/10. Based on classical methods, the new testing methods have been developed. The R-C optical system has been tested by both classical and new test methods, the measurement results have been compared with a perfect agreement. The manufacture precision of the secondary mirror includes the spot diaphragm with a diameter of 0.02mm in size and PV 0.12λ (λ=0.6328μm) of wavelength. The spot diaphragm's size of the primary mirror is 0.02mm. The spot diaphragm's size of the system is 0.02mm, RMS is 0.18λ and PV is 1.2 λ measured by WYKO laser interferometer. Because it is used in infrared wave band, this optical system has already met the designed technical data perfectly. The R-C optical system has been checked and accepted by the user.

Citation Download Citation

Peiming Hao, Xinglong Li, Liyin Yuan, Kexin Li, Lianxiao Fu, Senlin Zhou, and Xianmin Wang "Manufacture of Φ600 R-C optical system", Proc. SPIE 6148, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 614808 (30 May 2006); https://doi.org/10.1117/12.674046

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KEYWORDS

Mirrors

Surface finishing

Spherical lenses

Interferometers

Optics manufacturing

Photovoltaics

Aspheric lenses

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