Abstract
A simple experimental procedure is described for the precise measurement of focal lengths of medium-sized convex mirrors. This procedure is a modification of the conventional method reported in the literature. It has enabled us to minimize the errors introduced because of bench corrections and depth of focus of optical components that are generally encountered with conventional methods. The accuracy of the procedure has been found to be ±0.3%. The results of the measurements on a few test convex mirrors and experimental parameters are reported.
© 1994 Optical Society of America
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