Comparativa de coordenadas cromáticas CIELab*. Espectrofotómetro bidireccional y espectrofotómetro multiángulo (0/45º)

  1. Alcón, Natividad
  2. Iñigo, Inmaculada
  3. Tolosa, Ángel
  4. Picó, Marcela
Journal:
Óptica pura y aplicada

ISSN: 2171-8814

Year of publication: 2008

Issue Title: VIII Congreso Nacional del Color

Volume: 41

Issue: 3

Pages: 227-230

Type: Article

More publications in: Óptica pura y aplicada

Abstract

The aim of this work is the comparison between the results of CIELab* coordinates obtain by two types of visible spectrophotometer: bidirectional spectrophotometer with geometry measurement of 0/45º and multiangle spectrophotometer for the same geometry measurement. The colour was measured on five glossy homogeneous ceramic tiles with different hue: grey, cyan, green, yellow and red. The analysis of the CIELab* coordinates shows that the difference between both spectrophotometers is not significant. At every one of the cases, the difference is below the usual uncertainty associate with the results in these instruments.