Abstract
Accompanying with increase of surfaces, of which appearance changes with observing direction, the importance of goniometric spectrocolorimetry is increasing. Spatial and spectral distribution characteristics of reflected or transmitted light are fundamental optical properties,which relate not only flip-flop color, but also surface appearance. These optical properties are measurable by goniometric spectrocolorimetetry, and used for data-base of three dimensional image in computer graphics, which gives not only shape and color but also more realistic appearance. This guide gives basic knowledge for measuring principle, reference of measurement and geometric conditions, by which the relations between spatial and spectral distribution characteristics of reflected or transmitted light from the surface and measured value by goniometric spectrocolorimetry would be understood. As examples of gonio-spectrophotometric color measurement system, Model GCMS-3B, for general use, Model GCMS-11, for sophisticated usage and Model DV-10, for visual inspection are introduced.