optical reflectometer
optical reflectometer
[′äp·tə·kəl ‚rē‚flek′täm·əd·ər] (engineering)
An instrument which measures on surfaces the reflectivity of electromagnetic radiation at wavelengths in or near the visible region.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.