Mesure de couleur avec étalon numérique

Technical Properties

• Measuring Capability

  Color, Gloss

Color Measurement

• Color Geometry

  45°c:0°

• Sample Port

  12 mm

• Measuring Area

  8 mm

• Spectral Range Colorimetric

  400 - 700 nm, risoluzione 10nm

• Measurement Range

  0 - 170% remission

• Repeatability Color

  0.01 ΔE94 (10 misure consecutive su bianco)

• Reproducibility Color

  0.1 ΔE94 (media su 12 piastre BCRAII)

• Color Systems

  CIELab/Ch, Lab(h), XYZ; Yxy

• Color Differences

  ΔE*; ΔE(h); ΔECMC; ΔE94; ΔE99; ΔE2000; E2000 PF; ΔE DIN6175-2019

• Color Indices

  YIE313, YID1925, WIE313, CIE, Berger, Forza del colore, Opacità, Metamerismo, Scala dei grigi

• Illuminants

  A, C, D50, D55, D65, D75, F2, F6, F7, F8, F10, F11, UL30, CIE 015:2018 LED Illuminants

• Observer

  2°, 10°

Gloss Measurement

• Repeatability Gloss 0-20

  ± 0.1 GU

• Repeatability Gloss 20-100

  ± 0.2 GU

• Reproducibility Gloss 0-20

  ± 0.5 GU

• Reproducibility Gloss 20-100

  ± 1.0 GU

• Gloss Geometry

  60°

• Gloss Aperture

  5 x 10 mm

• Measurement Range Gloss

  0 - 100 GU

General

• Memory

  4000 standard e 10.000 campioni

• Interface

  Porta USB

• Display type or no display without placeholder

  3.5 " Touch screen a colori

• Languages

  English German French Italian Spanish Russian Japanese Chinese

• Power supply

  batteria integrata

• Power supply

  100 - 240 V, 50/60 Hz

• Battery

  7.2 V, 2350 mAh, 16.92 Wh

• Battery Capacity

  1200 letture

• Weight

  0.7 kg

• Weight

  1.5 lb

• Operating temperature

  10 - 40 °C

• Storing temperature

  0 - 60 °C

• Operating temperature

  50 - 104 °F

• Storing temperature

  32 - 140 °F

• Relative humidity

  < 85 % non condensante a 35 °C (95 °F)

• Dimensions: L x W x H

  8.7 x 11 x 18.8 cm

• Dimensions: L x W x H

  3.4 x 4.3 x 7.4 in

The basic building blocks of color measurement

Visual color perception is influenced by our individual color preferences, which are dependent on personal factors (mood, age, gender etc.), environment (lighting, surrounding etc.) as well as our ability to communicate color and color differences. A color looks different in the department store (cool white fluorescent lighting) than at home (warm, incandescent lighting). In order to guarantee consistent color and appearance under all possible circumstances, it is essential to standardize light source, observer and understand the spectral remission data of the object. This information will be the basis for calculation of colorimetric data as it is used for color communication and color QC in production.

Color Difference Equations for Solid Colors

It is now almost 100 years since, in 1931, the CIE Yxy chromaticity color space was defined by the “International Commission on Illumination (CIE)”. To overcome its limitations of not being uniform, the CIE recommended two alternate color spaces since then: CIELAB (or CIE 1976 L*a*b*) and CIELUV (or CIE L*u*v*). They are based on the opponent color theory of color vision, which says that two colors cannot be both green and red at the same time, nor blue and yellow at the same time. During the last years developments of new color difference equations and color spaces were carried out. Their goal was to improve the correlation between visual perception and instrumentally measured values. Additionally, they wanted to permit the use of a single number tolerance for all colors.

Farbmessung fluoreszierender Farben – eine HERAUSFORDERUNG

Die Welt um uns herum ist hell und bunt. Speziell Neonfarben sind seit einigen Jahren wieder in Mode. Voraussetzung dafür ist der Einsatz von fluoreszierenden Farbstoffen in der Lack-, Kunststoff- und vielen weiteren Industrien. Obwohl diese schon seit vielen Jahren breite Anwendung finden, stellt die Qualitäts kontrolle von fluoreszierendem Material immer noch eine große Herausforderung dar. Der folgende Artikel beschreibt die theoretischen Hintergründe zur Fluoreszenz, warum ein klassisches Spektralfotometer nicht für die Qualitätskontrolle von fluoreszentem Material geeignet ist und welche Möglichkeiten die neue Kombination aus Spektralfotometer und Fluorimeter bietet – besonders hinsichtlich der Vorhersage der Lichtbeständigkeit eines Materials.