https://mcl.mse.utah.edu/the-universal-reflectance-accessory/
The Universal Reflectance Accessory | Materials Characterization Lab
Dec 16, 2019 - One of the versatile accessories of the Lambda 950 is the Universal Reflectance Accessory (URA) which measures reflectance at varying incident angles.
the universalaccessory materialsreflectancecharacterizationlab