Trimos Optical Measurement with [TR Scan Compact with WLI sensors]

Trimos Optical Measurement with [TR Scan Compact with WLI sensors]



The new TR Scan Compact WLI range allows measurements on any type of material with sub-nanometric resolution.

With its simplicity of use and small size it integrates easily in a lab environment and permit to realize quick and simple measurements.

  • Non-contact
  • Small footprint
  • Measuring range 400 µm
  • Resolution 0.1 nanometer
  • Extremely easy to use
  • 2.5x and 5x Michelson type optics for a wide field of view
  • Exchangeable optics, or mounted on a carousel


WLI (While Light Interferometry) technology combined with a piezo motor allows extremely fast measurements.
The table allows manual movement with workpieces weighing up to 5 kg.
Motorized tables are available as an option to extend the X&Y measuring range.

Z-axis displacement

The Z-axis travel wheel has two functions: quick movement and fine positioning to easily adjust the working distance.

Tilt Adjustment

The tilt adjustment of the table is done using the two knobs on the front of the table.

Mounting Bases

The table’s thumbwheel allows precise movement in X & Y.


A carousel of optics is available as an option.





The piezo motor lifts the lens on the z-axis and the camera captures images in equidistant steps.
The image stack contains the information for calculating profile data from the surface.
Each independent pixel will have a so-called correlogram and the maximum variation of the sine light indicates a defined distance Z from the lens.

besmic optic, trimos



Material deposit

Very fine measurement – Chemical deposit


Very fine measurement – Chemical deposit

Very fine measurement – Electronic

Very fine measurement – Coating

Very fine measurement – Watchmaking

Transparent material



The extremely simple Trimos Compact WLI software allows fast measurement even by an inexperienced user. In addition to the 3D analysis software, it is possible to carry out any type of analysis on the measurements taken.

Developed around a graphic interface, the analysis software can work in 2D or 3D. Surface and profile extractions allow the analysis of all roughness parameters in 2D and 3D mode according to current standards

Additional software module :

Contour Basic & Advance

The contour module enables additional measurements to be made on the extracted profile, such as angles, distances, radius calculation, as well as the comparison of a DXF with the contour.