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Interferometric Measurements

Our interferometric laboratories are equipped with 4" and 6" interferometers, which allow us to measure following parameters:

  • Shape of polished surfaces, spherical as well as plane
  • Transmitted or reflected beam wavefront deformation
  • Angle deviation or wedge on plan-parallel glass
  • Angle deviation of corner prisms and rectangular prisms
  • Glass homogeneity

Measurement accuracy:

  • Surface figure and wavefront deformation < λ/20
  • Angle measurement < 1"

Our measuring results are in accordance with ISO 10110-5 requirements.