Colore e resistenza alla luce con standard digitali

Technical Properties

• Measuring Capability

  Color, Gloss, Fluorescence

Color Measurement

• Color Geometry

  d:8° (spin/spex)

• Sample Port

  12 mm

• Measuring Area

  8 mm

• Spectral Range Colorimetric

  400 - 700 nm, risoluzione 10nm

• Spectral Range Fluorescence

  340 - 760 nm, risoluzione 10nm

• Measurement Range

  0 - 170% reflectance

• Repeatability Color

  0.01 ΔE94 (10 misure consecutive su bianco)

• Reproducibility Color

  0.1 ΔE94 (average on 12 BCRA II)

• 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, Jetness, ΔE FI, ΔEzero

• Illuminants

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

• Observer

  2°, 10°

• Fluorescent Indices

  ΔE Fl, ΔEzero

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

  4.000 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

• 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

Spettrofotometro
Docking station con standard di calibrazione integrato
Standard di calibrazione bianco
Standard di controllo colore e gloss
Certificato
Software con 2 licenze da scaricare:
smart-lab Color (7083) o smart-process Color (7084)
USB per docking station/PC (7077)
Cavo interfaccia USB (7078)
Pennino (7079), Coperchio di protezione (7076), Laccetto
Manuale
Valigetta
1 giornata training

Gli elementi di base della misurazione del colore

La percezione visiva dei colori è influenzata dalle nostre preferenze cromatiche individuali, che dipendono da fattori personali (umore, età, sesso, ecc.), dall'ambiente (illuminazione, ambiente circostante, ecc.) e dalla nostra capacità di comunicare i colori e le differenze cromatiche. Un colore appare diverso nei grandi magazzini (illuminazione fluorescente bianca fredda) rispetto a casa (illuminazione calda a incandescenza). Per garantire la coerenza del colore e dell'aspetto in tutte le circostanze possibili, è essenziale standardizzare la sorgente luminosa, l'osservatore e comprendere i dati di remissione spettrale dell'oggetto. Queste informazioni saranno la base per il calcolo dei dati colorimetrici, utilizzati per la comunicazione del colore e il controllo qualità del colore in produzione.

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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.

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Color Measurement of Fluorescent Colors – a CHALLENGE

The world around us is bright and colorful. Neon colors in particular have been back in trend for several years. The prerequisite for this is the use of fluorescent pigments in the paint, plastic and many other industries. Although these have been widely used for many years, the quality control of fluorescent material still remains a major challenge. The following article describes theoretical background of fluorescence, why a standard spectrophotometer is not suitable for the quality control of fluorescent material and what possibilities the new combination of spectrophotometer and fluorimeter offers - especially with regard to predicting the lightfastness of a material.

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