УДК: 535.4, 681.7.02-04, 681.787

Fabricating the optical elements of compound mirrors for large astronomical telescopes

Abdulkadyrov, M.A., Belousov, S.P., Patrikeev, A.P., Patrikeev, V.E., Semenov, A.P.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Абдулкадыров М.А., Белоусов С.П., Патрикеев А.П., Патрикеев В.Е., Семенов А.П. Изготовление оптических элементов составных зеркал для больших астрономических телескопов // Оптический журнал. 2013. Т. 80. № 4. С. 18–23.

Abdulkadyrov M.A., Belousov S.P., Patrikeev A.P., Patrikeev V.E., Semenov A.P. Fabricating the optical elements of compound mirrors for large astronomical telescopes [in Russian] // Opticheskii Zhurnal. 2013. V. 80. № 4. P. 18–23.

For citation (Journal of Optical Technology):

M. A. Abdulkadyrov, S. P. Belousov, A. P. Patrikeev, V. E. Patrikeev, and A. P. Semenov, "Fabricating the optical elements of compound mirrors for large astronomical telescopes," Journal of Optical Technology. 80(4), 214-218 (2013). https://doi.org/10.1364/JOT.80.000214

Abstract:

The technical possibilities of the Lytkarino Optical Glass Factory make it possible to manufacture optics from the stage of melting and annealing the blanks to the fabrication of finished astronomical mirrors. This paper describes the factory’s experience in investigating blanks and finished segments made from Astrositall for telescopes with compound segmented mirrors. An arrangement is shown for monitoring the figure of the spherical surface of the segments of a compound mirror, using a Fizeau lens. To implement the arrangement, a large-diameter Fizeau lens was fabricated and a special test stand was developed and fabricated that makes it possible to monitor both the spherical surface of the lens itself and a spherical element of the compound mirror.

Keywords:

segmented mirrors, optical control, aspherical surface

OCIS codes: 220.0220; 220.0230; 220.4610; 350.1260

References:

1. M. A. Abdulkadyrov, S. P. Belousov, A. N. Ignatov, and V. V. Rumyantsev, “Non-traditional technologies to fabricate lightweighted astronomical mirrors with high stability of surface shape,” Proc. SPIE 3786, 468 (1999).
2. A. P. Semenov, V. E. Patrikeev, A. V. Samuylov, and Y. A. Sharov, “Computer-controlled fabrication of large-size ground and space-based optics from glass ceramic Sitall CO-115M,” Proc. SPIE 3786, 474 (1999).
3. J. G. Meiring, D. A. H. Buckley, M. C. Lomberg, and R. S. Stobie, “Southern African Large Telescope (SALT) Project: progress and status after two years,” Proc. SPIE 4837, 11 (2002).
4. H. Su and X. Cui, “LAMOST project and its current status,” Proc. SPIE 4837, 26 (2002).
5. O. V. Ponin, A. A. Sharov, I. Galyavov, T. A. Kompan, J. Swiegers, and A. Swat, “Demonstrating the suitability of Sitall for the SALT primary mirror,” Proc. SPIE 4837, 795 (2002).
6. X. Cui, Y. Li, X. Ni, X. Cui, Y. Li, X. Ni, D. Yang, Z. Yao, G. Li, and Y. Wang, “Active support system of LAMOST reflecting Schmidt plate,” Proc. SPIE 4837, 628 (2002).
7. X. Gong, X. Cui, H. Chen, X. Ye, and R. Zhang, “Design and analysis of support system of LAMOST primary mirror,” Proc. SPIE 4837, 667 (2002).
8. M. A. Abdulkadyrov, S. P. Belousov, A. N. Ignatov, V. E. Patrikeev, V. V. Pridnya, A. V. Polyanchikov, V. V. Rumyantsev, A. V. Samuylov, A. P. Semenov, and Y. A. Sharov, “Manufacturing of primary mirrors from Sitall CO-115M for European projects TTL, NOA and VST,” Proc. SPIE 4451, 131 (2001).
9. A. P. Semenov, M. A. Abdulkadyrov, S. P. Belousov, A. N. Ignatov, V. E. Patrikeev, V. V. Pridnya, A. V. Polyanchikov, V. V. Rumyantsev, A. V. Samuylov, and Y. A. Sharov, “Manufacturing of secondary mirrors from Sitall CO-115M for European projects TTL, NOA and VST,” Proc. SPIE 4451, 138 (2001).