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handle: 10261/10072
[ES] En este trabajo se analiza el cambio del color con el ángulo de observación de muestras de cartón-yeso iluminadas en la dirección normal a superficie de la muestra. Para ello se ha medido la distribución espectral de la radiancia emitida mediante un espectro-gonio-fotómetro construido y diseñado en el Instituto de Física Aplicada (CSIC). Se han estudiado muestras de cartón-yeso estándar y pintadas, encontrándose diferente comportamiento entre ellas, si bien todas divergen del difusor perfecto. Las diferencias de color encontradas son todas perceptibles, proviniendo de un cambio de claridad para los ángulos de observación más próximos al de incidencia y de un cambio de claridad y croma para los ángulos más alejados.
[EN] Colour coordinates change of plaster card-board versus observation angle under normal illumination is analysed in this job. Spectral radiance distribution has been measured at different observation angles by using a spectro-gonio-photometer designed and built at the Instituto de Fisica Aplicada (CSIC). Standard plaster card-board samples as well as painted ones have been studied. Their angular distribution is different but they differ from the perfect diffuser in all cases. Colour differences found are perceptible, coming from a brightness change at the smaller angles and from a brightness and chroma change at the largest angles apart from the incidence.
Peer reviewed
Placas de Cartón-Yeso, Spatial Distribution, Radiance Factor, Colour Coordinates, Coordenadas de Color, Plaster Board, Distribución Espacial, Factor de Radiancia
Placas de Cartón-Yeso, Spatial Distribution, Radiance Factor, Colour Coordinates, Coordenadas de Color, Plaster Board, Distribución Espacial, Factor de Radiancia
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