Effect of instrument design on diffuse reflectance measurements

Helen White; Julie A. F. Taylor

doi:10.1117/12.464658

6 June 2002 Effect of instrument design on diffuse reflectance measurements

Helen White, Julie A. F. Taylor

Proceedings Volume 4421, 9th Congress of the International Colour Association; (2002) https://doi.org/10.1117/12.464658
Event: 9th Congress of the International Color Association, 2001, Rochester, NY, United States

Abstract

This work forms part of an ongoing investigation to increase understanding of the sources of error associated with the measurement of diffuse reflectance by national reference instruments. Measurements of diffuse reflectance are performed at the National Physical Laboratory (NPL) via two possible routes: gonioreflectometric or integrating sphere based technologies. This work investigated the sources of anomoalies found between reflectance measurements made on different sphere based instruments, by looking at the link between the uniformity of the integrating sphere, employed, and the measured spatial distribution of light reflected from a range of samples. The results were then used to demonstrate the effect of integrating sphere design on the resulting diffuse reflectance measurement, and to comment on possible limitations to the current sphere error correction systems.

Citation Download Citation

Helen White and Julie A. F. Taylor "Effect of instrument design on diffuse reflectance measurements", Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); https://doi.org/10.1117/12.464658

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