Telemark – Witness Glass Changer

In stock


For in-situ optical monitoring it is often desirable to monitor coatings via. a witness glass assembly. The Telemark witness glass changer offers users reflection or transmission measurements. The witness glass assembly manages 54 witness spots on a single 3 inch diameter piece of glass for post coating analysis and product traceability.


  • Up to 54 monitoring positions on a single
    75 mm  disk
  • Transmission, front surface reflection, or
    back surface reflection
  • Automatic position indexing
  • Quartz Crystal Rate Sensor port
  • Provides complete optical monitoring solution
    on a single ISO160 flange
  • ISO100 flange option provides 6 positions
    on a 25 mm disk
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