PrismMaster® 150 HR - Compact Goniometer

The TRIOPTICS PrismMaster series has been setting the standard for high precision goniometers since 1998. The new PrismMaster® 150 rounds off the PrismMaster series and is ideal for optical workshops as well as for receipt and final inspection in a production environment.

The new PrismMaster® series boasts a number of new features including new user-friendly software packed with many new functions. The overall concept of the new PrismMaster® series follows a simple philosophy: providing an instrument with unrivalled accuracy which is  also easy to use.

Key Features

  • Outstanding absolute accuracy achieved in a single measurement.
    Benefit: Saves time as no multiple measurements are required.
  • High precision electronic autocollimator with large measuring range and optimized light intensity combined with a high resolution camera.
    Benefit: Facilitates operation and allows the measurement of a large variety of samples including microprisms with a minimum sample size of 1.0 mm².
  • Software-automated sample tilt compensation (emulated tilt table).
    Benefit: Quick and precise measurement of prism angles and pyramidal errors without laborious adjustments.
  • Stable granite and steel frame for all measuring parts.
    Benefit: Utmost mechanical and thermal stability guarantee highest measurement accuracy and repeatability.
  • Transmission measurements and refractive index calculations performed by the software.
    Benefit: No additional equipment - thus easy to operate and time-saving as no modification required
  • Ultra-stable and accurate rotary air bearing with axial/radial run-out of less than 50 nm and high performance angular encoder.
    Benefit: Highest measurement accuracy.
  • Compact design with full system integration and single-cable connection.
    Benefit: Easy to install and to transport.
  • Measurement table in three different heights.
    Benefit: Easy to adapt to different sample diameters and heights.


  • Angle measurements of polygons, prisms and wedges
  • Surface tilt errors of prism and polygons
  • Wedge errors, parallelism of optical windows
  • Deflection angle measured in transmission
  • Index of refraction of optical glasses
  • Angles of microprisms
  • Pyramidal errors
  • Angular gauge block