Microprocessor-Based Instrumentation For Bidirectional Reflectance Distribution Function (BRDF) Measurements From Visible To Far Infrared (FIR)

A scattering instrument for making BRDF measurements is described. The instrument is microprocessor-controlled and is designed to obtain BRDF data at wavelengths of 0.6328, 1.15, 3.39, 10.6, 41.7, and eventually 118.8 microns.