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.
Description:
- Courtesy of : Santiago de Compostela University, Spain
- Material: water/oil
- Instrument: DHM® T-1000
- Time scale: <800 ms
- Magnification: 10x
Droplet evaporation
Das DHM® captures the dynamic process of a droplet evaporation to show both 4D topography and dynamic profile.
Description:
- Material: Water/IPA
- Instrument: DHM® T-1000
- Time scale: <1 min
- Magnification: 5x
