Possible space telescope optics testing in space

Gennadi M. Popov

doi:10.1117/12.324450

28 August 1998 Possible space telescope optics testing in space

Gennadi M. Popov

Proceedings Volume 3356, Space Telescopes and Instruments V; (1998) https://doi.org/10.1117/12.324450
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

Simple Ronchi testing of Ritchey-Chretien space telescope optics is discussed. Bright star is used in the infinity and Ronchi grating is situated in front of focus of the telescope under test. Ronchi patterns are to be recorded by means CCD camera. The same camera is to be used for the sky observations. Space telescope optics aberrations can be calculated from the recordings of Ronchi patterns. Aberrations can be used for the main mirror shape corrections in the space. Foucault knife test can be used instead of the Ronchi grating for independent testing of the telescope optics too.

Citation Download Citation

Gennadi M. Popov "Possible space telescope optics testing in space", Proc. SPIE 3356, Space Telescopes and Instruments V, (28 August 1998); https://doi.org/10.1117/12.324450

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