HOFBAUER
OPTIK Mess- & Prüftechnik now offers the certification /
measurement of plane-parallel substrates and wedges and can determine
the wedge angle and the refractive index with very high accuracy. The
first calibration services on reference wedges in accordance to GUM and
ISO 26017 have already been carried out for customers. The certified
reference wedges are used for internal calibration check of
autocollimation telescopes in series qualification. The achievable
measurement accuracy for the wedge is currently +/- 0.22 arcsec, the
uncertainty of the refractive index is up to dn = 0.00035. The
achievable measurement accuracy depends on the quality of the test
object (surface quality and homogeneity) and the size of the angle.
Feel free to ask us for your application.