Multi-angle color & effect measurement: anodized parts

Color Measurement

• Color Geometry

  45° illumination; -15°, 15°, 25°, 45°, 75°, 110° aspecular viewing

• Measuring Area

  23 mm diameter

• Spectral Range Colorimetric

  400 - 700 nm, 10 nm resolution

• Measurement Range

  0 to 600 % reflectance

• Repeatability Color

  0.01 ΔE* (10 consecutive measurements on white)

• Reproducibility Color

  Grey BCRA II tiles: avg. ΔE* < 0.10 Chromatic BCRA II tiles: avg. ΔE* < 0.25

• Color Scales

  ΔE*; ΔE CMC; ΔE 94; ΔE 2000; ΔE 99; ΔE DIN6175-2019 and customer specific scales

• Color Indices

  Flop, Int-Em

• Illuminants

  A; C; D50; D65; F2; F7; F11; F12; CIE 015:2018 LED illuminants

• Observer

  2°; 10°

Effect Measurement

• Effect Geometry

  15°, 45°, 75° and diffused illumination; perpendicular viewing with camera

• Effect Parameters

  ΔS; ΔS_a; ΔS_i; ΔG

• Repeatability Effect

  S_a / S_i: 5% or > 0.50 / G = ± 0.05

• Reproducibility Effect

  S_a / S_i: 10% or > 1.00 / G = ± 0.15

• Effect Parameters Anodized Surfaces

  Sparkle index ANO; Sparkle amount ANO

• Repeatability Effect Anodized Surfaces

  ± 250 or 2.5% (on anodized silver reference standard)

• Reproducibility Effect Anodized Surfaces

  ± 500 or 5.0% (on anodized silver reference standard)

General

• Measuring time

  < 6 seconds

• Memory

  1000 standards / samples

• Display

  2.7 in. TFT color LCD display

• Languages

  English French German Italian Japanese Spanish Chinese Russian

• Power supply

  Rechargeable battery pack or 4 mignon AA batteries (alkaline or rechargeable)

• Weight

  1.3 kg

• Weight

  2.9 lb

• Operating temperature

  10 - 42 °C

• Operating temperature

  50 - 110 °F

• Relative humidity

  up to 85%, 35° C (95° F); non-condensing

• Dimensions: L x W x H

  21.8 x 8.1 x 14.7 cm

• Dimensions: L x W x H

  8.6 x 3.2 x 5.8 in

Multi-angle spectrophotometer
Black calibration standard (7044)
White calibration standard with certificate
Color checking tile
Effect checking tile
Online Kit BYK-mac i Pro for online data transfer and charging (7055)
Protective cap (6336)
1 light protection cover (6414)
Seal replacement kit (6348)
Cleaning set (6364)
1 rechargeable Li-ion battery pack (6359)
Software with two licensees for download:
smart-lab (4862) or smart-process (4831)
USB stick with Flake Analyzer software
Manual
Carrying case
1-day training

Multi-angle Color Measurement

Today effect finishes play a dominant role in many applications as they make an object distinctively appealing. In contrast to conventional solid colors, effect finishes change their appearance with viewing angle and lighting conditions. Interference finishes show not only a lightness change with different viewing angle, but also a change in chroma and hue. The latest developments are special effect pigments, which create sparkling effects when lighting conditions change from sunlight to cloudy sky.In order to describe these effects objectively instrumental measurement is performed with multi-angle spectrophotometers. The following article reviews visual evaluation of effect coatings, measurement principle of a multi-angle and effect spectrophotometer and illustrates data interpretation of sparkle and graininess values.

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