12 October 2015 Creation and validation of Spectralon PTFE BRDF targets and standards
Author Affiliations +
Sintered PTFE is an extremely stable, near-perfect Lambertian reflecting diffuser and calibration standard material that has been used by national labs, space, aerospace and commercial sectors for over two decades. New uncertainty targets of 2% on-orbit absolute validation in the Earth Observing Systems community have challenged the industry to improve is characterization and knowledge of almost every aspect of radiometric performance (space and ground). Assuming “near perfect” reflectance for angular dependent measurements is no longer going to suffice for many program needs. The total hemispherical spectral reflectance provides a good mark of general performance; but, without the angular characterization of bidirectional reflectance distribution function (BRDF) measurements, critical data is missing from many applications and uncertainty budgets. Therefore, traceable BRDF measurement capability is needed to characterize sintered PTFE’s angular response and provide a full uncertainty profile to users. This paper presents preliminary comparison measurements of the BRDF of sintered PTFE from several laboratories to better quantify the BRDF of sintered PTFE, assess the BRDF measurement comparability between laboratories, and improve estimates of measurement uncertainties under laboratory conditions.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christopher Durell, Christopher Durell, Dan Scharpf, Dan Scharpf, Greg McKee, Greg McKee, Michelle L'Heureux, Michelle L'Heureux, Georgi Georgiev, Georgi Georgiev, Gael Obein, Gael Obein, Catherine Cooksey, Catherine Cooksey, } "Creation and validation of Spectralon PTFE BRDF targets and standards", Proc. SPIE 9639, Sensors, Systems, and Next-Generation Satellites XIX, 96391D (12 October 2015); doi: 10.1117/12.2195503; https://doi.org/10.1117/12.2195503


S-NPP VIIRS lunar observations
Proceedings of SPIE (September 25 2014)
Sentinel-2/MSI absolute calibration: first results
Proceedings of SPIE (October 11 2015)
Ultraviolet BRDFs of selected materials
Proceedings of SPIE (November 10 1996)
The effect of speckle on BRDF measurements
Proceedings of SPIE (August 21 2005)

Back to Top