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Influencia del diámetro y color de plantillas reductoras de la superficie de proyección de los colorímetros en la medida del color de una superficie

 

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Opened Access Influencia del diámetro y color de plantillas reductoras de la superficie de proyección de los colorímetros en la medida del color de una superficie
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Author: Villegas Sánchez, Rosario
Robador González, María Dolores
Arroyo Torralvo, Fátima
Alcalde Moreno, Manuel
Date: 2008
Published in: Materiales de construcción, 58(291), 99-109
Document type: Article
Abstract: En los colorímetros que existen en el mercado, la luz se recoge mediante un tubo de cierto diámetro y los valores de las coordenadas cromáticas que da el medidor son una media de las obtenidas en dicha superficie. Cuando la superficie a medir no...
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The colour coordinate values measured with the colorimeters presently on the market are the mean of the readings obtained for the surface area covered by the light projection tube. When the colour of the surface measured is not uniform, such as in the case of stone, the larger the tube aperture the more representative is the colour measurement, for a larger area is involved. While this is often an advantage, when the area studied is smaller than the aperture of the colorimeter used, the values obtained include unwanted information. One possible way to deal with this drawback is by using templates to reduce the measurement area. Templates adapted to a Minolta CR-210 colorimeter were tested in the present study. The conclusion drawn was that in addition to being convenient to use, they ensured that the readings matched the original colour of the surface, i.e., the value that would have been obtained without the templates.
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URI: http://hdl.handle.net/11441/17645

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