Quality Control of Large-Scale Mirror Objectives with Eccentric Image Field

Catadioptic lens with eccentric image field have become widespread at production of aeronautical and space electrooptical equipment for Earth observation. Wide camera angle and entrance pupil which is brought out beyond the bounds of optical components at a considerable distance present problems during its quality control at extreme camera angles. At the same time they rigidly require the accuracy of photogrammetric certification of inner orientation elements. The quality control method of large-size mirror objectives with eccentric image field which ensures a fixed position of the tested lens and collimator lens is proposed. Moreover, it ensures accurate assignment of angular bunch of rays at the inlet to lens owing to application of two rotating planar mirror. Application of suggested method in actual practice allows to simplify the process of photogrammetric calibration and increase the reliability of the calculation results of inner orientation elements.

References

[1] Grammatin A.P., Kharchenko A.A. Three-mirror lens without shielding with a binary asphere. Optic. zhur. [J. Opt. Tech.], 2011, vol. 78, no. 4, pp. 76-78 (in Russ.).

[2] Tokarev A.A. Long-focus lens with an eccentric image field. Izv. Vyssh. Uchebn. Zaved., Radioelektron. [Radioelectron. Commun. Syst.], 1988, vol. 31, no. 7, pp. 7474 (in Russ.).

[3] Arkhipov S.A., Zavarzin V.I., Zavarzina V.V., Kravchenko S.O., Morozov S.A., Senik B.N. Zerkal’no-linzovyy ob’ektiv (varianty) [Catadioptric lens (versions)]. Patent RF no. 2461030, 2012.

[4] Arkhipov S.A., Gasich G.V., Zavarzin V.I. Photogrammetric parameters of optoelectronic equipment. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Priborostr. [Herald of the Bauman Moscow State Tech. Univ., Instrum. Eng.], 2008, no. 4, pp. 103-115 (in Russ.).