OPTIKA ATMOSFERY I OKEANA JOURNAL
V.E. ZUEV INSTITUTE OF ATMOSPHERIC OPTICS
Vol. 12, issue 02, article # 14
pdf Polovtsev I. G. Precision measurements of optical surface curvature radius by use of digital interferometry. // Atmospheric and oceanic optics. 1999. V. 12. No. 02. P. 157-159.Copy the reference to clipboard
Abstract:
Errors of the autocollimation method as applied to measuring a curvature radius of spherical optical surfaces with an interferometer are analyzed. A precision measurement technique (ΔR/R ≈ 10–5) is proposed. It is based on iterative physical refinement of a test piece position by results of interferogram processing. A relation between the measurement error and characteristics of a digital interferometer is obtained.