The confocal chromatic measuring principle Polychromatic white light is focused onto the target surface by a multi-lens optical system. The lenses are arranged so that the white light is dispersed into monochromatic wavelengths by controlled chromatic aberration. To each wavelength, a specific distance is assigned by factory calibration. Only the wavelength which is exactly focused on the target is used for the measurement. An optical arrangement images the light reflected onto a light sensitive sensor element, on which the corresponding spectral color is detected and evaluated. In the case of multi-peak measurements, several distance points are evaluated accordingly.
Extremely large tilt angle
Dynamic measurement tasks
Ready for vacuum
Tilt angle up to 48°
Highest measuring rate in the world
Sensor designed from passive components
Stable signals with curved & structured surfaces
Dynamic exposure control for highest measurement accuracy
Vacuum-suitable sensors, cables and accessories
Smallest light spot
Ultra-small sensors
Thickness calibration
Highlateral resolution
Detection of smallest details (e.g. IC pins on PCBs)
Sensors with a diameter from 4 mm for restricted installation space
90° models reduce the installation depth again
Highest measurement accuracy
due to stored target materials (refraction index)
Multi-layer thickness measurement
Signal with thickness measurement
Signal with multi-layer thickness measurements (max. 6 peaks)
Thickness measurement of transparent materials in the micron range
Tilt angle up to 48°
