Difrotec builds better interferometer than the best in market
better accuracy than fizeau interferometer
High accuracy point diffraction interferometer
High accuracy point diffraction interferometery
Industrial point diffraction interferometery
point diffraction interferometer
point diffraction interferometry
absolute surface form
optical metrology
Interferometer
transimtted wavefronts quality testing
high phase contrast fringe patterns
modern interferometry techniques
testing microscope optics
testing adaptive optics
testing ultraviolet optics
testing tescopes optics
testing space optics
testing wavefronts
imaging wavefronts
nanometer resolution optical surface detection
high precision optical instrument
Automatic fringe analysis

Breakthrough technology in optical testing

Interferometer D7
with world record accuracy

  • absolute accuracy
 0.8 nm
  • numerical aperture
 0.6 (f# 0.83)
  • wavelength
 632.8 nm
  • repeatability (simple RMS)
 < 0.06 nm

Service
Test & fabrication:

  • concave, convex & flat
  • aspheres by stitching interferometry
  • absolute optical system wavefronts
  • precision optical design and fabrication

See us on Photonics Buyers' Guide
  • concave, convex, & flat surfaces
  • aspheres by stitching interferometry
  • absolute optical system wavefront
  • precision optical design & fabrication