ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
Menu

5
Issue
vol 67 / May, 2024
Article

DOI 10.17586/0021-3454-2015-58-7-537-542

UDC 681.7.062

AUTOCOLLIMATION METHOD FOR MEASURING THE FOCAL DISTANCE OF A LENS

A. G. Ershov
S. I. Vavilov State Optical Institute; Senior Researcher


Read the full article 
Reference for citation: Ershov A. G. Autocollimation method for measuring the focal distance of a lens //Izvestiya Vysshikh Uchebnykh Zavedeniy. Priborostroenie. 2015. Vol. 58, N 7. P. 537—542 (in Russian).

Abstract. An autocollimation method for measuring the focal distance of a long-range lens Apo-Mars-7 at the wavelength of 1.064 um is described. Factors affecting the final measurement uncertainty are considered. Limitations of the method application to other wavelengths and lenses are specified.
Keywords: focal distance, measurement, uncertainty