The compensation tests of ellipsoidal mirror with a scale of 1m and super large relative aperture

Jun-he Pan; Ming-young Hu; Shi-dong Shen; Xi-Cai Liu

doi:10.1117/12.867621

13 October 2010 The compensation tests of ellipsoidal mirror with a scale of 1m and super large relative aperture

Jun-he Pan, Ming-young Hu, Shi-dong Shen, Xi-Cai Liu

Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 76541P (2010) https://doi.org/10.1117/12.867621
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

On the basis of three-order aberration theory, only adopt the method of null test using compensation of a compensating lens and a field lens to compensate ellipsoidal mirror with a scale of 1m and super large relative aperture, and succeed to design a compensator of the ellipsoidal mirror that the radius of curvature of vertex is 1555mm, aperture is 1000mm and e² is 0.9. Compared to compensator of ellipsoidal mirror with small aperture or small relative aperture, aperture of the compensating Lens is large and field lens is far from center of curvature of vertex of the ellipsoidal mirror, which destroys the conjugated relationship about field lens between compensating lens and the ellipsoidal mirror, and compensates aberration together with compensating lens. The result of design shows that the aberration is well corrected, and RMS below to λ/40 after fulfillment.

Citation Download Citation

Jun-he Pan, Ming-young Hu, Shi-dong Shen, and Xi-Cai Liu "The compensation tests of ellipsoidal mirror with a scale of 1m and super large relative aperture", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 76541P (13 October 2010); https://doi.org/10.1117/12.867621

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