Standards of diffuse or specular reflectance to calibrate colorimeters, reflectometers, spectroradiometers, BRDF scatterometers, UV-VIS spectrophotometers and FTIR spectrometers. Labsphere's award-winning Spectralon forms the basis of our diffuse reflectance standards. The range includes standards of diffuse reflectance for the 250-2500nm range (white and greyscale), colour, wavelength and fluorescence. All are characterised by stable, Lambertian reflectance which provides for stable, consistent reflectance regardless of instrument alignment or illumination and viewing geometries. For the IR (2.5-15µm) we offer Labsphere's Infragold diffuse reflectance standards. Our standard of specular reflectance is a front surface mirror which is available in low and high reflectance forms.
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