Liquid interface

Liquid lens

Liquid lenses are a type of lenses that can adjust focus according to an external stimulus such as the application of an electric potential, or a mechanical or hydraulic pressure. Focus control is fast and continuous. Low interface reflectivity is a limitation for all the profilometry techniques except DHM® which enables to follow the liquid deformation over time, i.e in 4D.

A liquid lens formed from a water/oil interface is reversed due to external pressure/force applied. DHM recorded the dynamic 3D profile of the reverse process.  



  • Courtesy of : Santiago de Compostela University, Spain
  • Material: water/oil
  • Instrument: DHM® T-1000
  • Time scale: <800 ms
  • Magnification: 10x

Dynamic response of a liquid lens based on water/oil interface

Droplet evaporation

Das DHM® captures the dynamic process of a droplet evaporation to show both 4D topography and dynamic profile.



  • Material: Water/IPA
  • Instrument: DHM® T-1000
  • Time scale: <1 min
  • Magnification: 5x

4D topography of a droplet evaporation process