Abstract

Surfaces with sinusoidal profiles diffract light, in general, into a number of orders having well-defined intensities and scattering angles. If the diffracted light from such surfaces had seven or eight orders, with intensity dropping by a calculated amount between orders, these surfaces would have potential use as standards for calibrating, over a wide range in intensity, instruments that measure the bidirectional reflectance distribution function (BRDF).

© 1991 Optical Society of America