Collimator based on a Schmidt camera mirror design and its application to the study of the wide-angle UV and VUV telescope

Nikolay I. Chkhalo; Ilya V. Malyshev; Alexey E. Pestov; Vladimir N. Polkovnikov; Nikolay N. Salashchenko; Mikhail N. Toropov; Sergey N. Vdovichev; Igor Leonardovich Strulya; Jurii A. Plastinin; Artem A. Rizvanov

doi:10.1117/1.JATIS.4.1.014003

5 February 2018 Collimator based on a Schmidt camera mirror design and its application to the study of the wide-angle UV and VUV telescope

Nikolay I. Chkhalo, Ilya V. Malyshev, Alexey E. Pestov, Vladimir N. Polkovnikov, Nikolay N. Salashchenko, Mikhail N. Toropov, Sergey N. Vdovichev, Igor Leonardovich Strulya, Jurii A. Plastinin, Artem A. Rizvanov

Author Affiliations +

Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 4, Issue 1, 014003 (February 2018). https://doi.org/10.1117/1.JATIS.4.1.014003

Abstract

The paper describes a wide-angle collimator based on a “Schmidt camera” mirror design, which is intended for resolution measurements of a telescope operating in the 120- to 380-nm wavelength range. The collimator consists of a test pattern, a spherical mirror, and a mirror wavefront corrector (planoid) compensating for spherical aberration and astigmatism. The test pattern is shifted from the optical axis of the collimator using a flat mirror. The main parameters of the device are as follows: working area diameter of the test pattern, 30 mm; aperture ratio, F/3.2; exit pupil diameter, 250 mm; angular resolution measured in “white light,” 1.4 arc sec; and field of view, 2ω=3 deg. The results of the angular resolution measurements of a two-channel Schmidt–Cassegrain mirror telescope, obtained with the use of the collimator, are given.

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Nikolay I. Chkhalo, Ilya V. Malyshev, Alexey E. Pestov, Vladimir N. Polkovnikov, Nikolay N. Salashchenko, Mikhail N. Toropov, Sergey N. Vdovichev, Igor Leonardovich Strulya, Jurii A. Plastinin, and Artem A. Rizvanov "Collimator based on a Schmidt camera mirror design and its application to the study of the wide-angle UV and VUV telescope," Journal of Astronomical Telescopes, Instruments, and Systems 4(1), 014003 (5 February 2018). https://doi.org/10.1117/1.JATIS.4.1.014003

Received: 19 July 2017; Accepted: 8 January 2018; Published: 5 February 2018

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