Paper
19 June 2002 Simple laser interferometers for concave ellipsoidal mirror testing
Gennadi M. Popov, Yevgen G. Popov
Author Affiliations +
Abstract
A simple laser interferometer is proposed. It consists of a small concave mirror, a gas laser, a semitransparent flat mirror, a concave ellipsoidal mirror under test, and a register equipment. Laser beam is reflected by very small concave or convex paraboloidal mirror and then it is directed to the semitransparent flat mirror, and to the mirror under test. The light reflected by the flat mirror is reference wave, the light reflected by the mirror under test is imperfect wave to screen or in a register equipment to obtain useful interferogramms. It is possible to test any concave ellipsoidal mirror by manufactured and tested at Crimean Astrophysuical Observatory.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gennadi M. Popov and Yevgen G. Popov "Simple laser interferometers for concave ellipsoidal mirror testing", Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); https://doi.org/10.1117/12.473563
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KEYWORDS
Mirrors

Interferometers

Glasses

Spherical lenses

Pellicles

Observatories

Gas lasers

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