Flatness Measurement

Large FOV sensor for flatness measurement

Flatness measurement requires large field of view and sub-nanometric vertical resolution. The lens-less sensor and the holographic macroscope are ideal for such applications.


  • Material : polished steel
  • Size : Ø 30 mm
  • Instrument : Holographic macroscope
  • Field of view : 32 mm x 32 mm

Full FOV for watch parts

Flatness measurement is critical for quality control in watch making industry. DHM provides ultra fast 3D mapping on watch parts, e.g. wheel, for both in-line measurement and R&D.


  • Material : Silicon
  • Size : Ø 5 mm
  • Instrument : DHM R2200
  • Objective: 1.25x
Ring flatness measurement
Full-field view measurement on a wheel for watch