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Benchtop light goniometer for small LED lamps, modules, and components.

A compact system for measuring light intensity distribution, luminous flux, and color.

The easy-to-use GL Optic system combines the functionality of a goniophotometer with the features of a spectroradiometer to measure the luminous flux, determine the light intensity distribution values of colorimetric parameters required by international standards.
The new GLG 8-850 goniometer is a top-of-the-range benchtop goniometer designed to measure LED modules and smaller luminaires and to test components.
The automated system allows to measurement of devices weighing up to 8 kg and with a diameter of 850 mm.  The system with computer and GL Spectrosoft add-on software, enables measurements with an angular resolution of 0.1° and in the angular range of the C axis and λ +/- 180°.


  • Small in size, big in capability
  • Compliance with international standards
  • Accelerate product development
  • C-type optical goniometer in C-γ coordinates
  • Optical axis in horizontal direction
  • Angular measurement of luminous intensity
  • Luminous flux measurements
  • LDT and IES file generation

Optional functions:

  • Class L  (according to DIN 5032) laboratory photometer
  • Current or power source and power meter
  • TEC control or temperature measurement
  • Type A conversion kit available


GL Optic develops and produces reliable, precise and intuitively operated spectrometers and light measuring instruments and offers complete SOLUTIONS for measuring LUX, lumen, CRI, CCT, COLOR, and lum...