Optical tests
Methods and areas of application
Color measurement
A color measurement can be carried out using colorimeters or spectrophotometers under various standardized lighting or detector geometries. One obtains either color values in the CIE Lab color space or spectral curves.
application areas
Quality control
Quantification of color deviations
Metamerism
Colour constancy checks after environmental simulation tests
Gloss measurement
Gloss measurement determines the directional portion of the reflection of a surface. Various standardized measuring geometries are available for the measurement
(20°, 60° and 90°). The reflectometer value is related to a standard (black polished glass plate).
application areas
Quality control
Determination of the degree of gloss or gloss deviations after durability tests
Light
microscopy
Light microscopy enables the optical examination of small structures.
field of use
Damage analysis
Laser particle size measurement
Particles in a suspension scatter the laser light. The size distribution can be calculated based on the intensity distribution in the diffraction pattern.
application areas
Quality control
Particle size distribution
Droplet size in emulsions
UV-Vis spectroscopy
In molecular spectroscopy, the incoming light is absorbed or scattered. This is characteristic of certain molecular fragments. The recorded spectra show specific bands for certain molecular components, which can be used to identify organic materials in particular.
application areas
Analysis of organic components
Polymer characterization
Damage analysis
Stains and dirt
Analysis of competitive products
