Goniophotometry

Goniophotometry

Devices

LGS 650 goniophotometer and DSP200 photometer / Instrument systems
CAS 140D array spectroradiometer and LEDGON 100 Goniophotometer / Instrument Systems.

Expected Result

Accurate determination of the luminous intensity distribution and luminous flux and of angle-dependent radiometric, photometric and colorimetric parameters to characterize all types of light sources with export to Excel, IES and Eulumdat.

Method

Together with the remote controlled current and voltage sources, power meters and temperature controllers photometric and radiometric parameters of light sources up to 1.3 m length (LGS 650) or up to 112 mm (LEDGON 100) can be determined angle-dependent at a measuring distance of up to 12 m (LGS 650) or up to 70 cm (LEDGON 100).

Case Study

A luminaire manufacturer wants to evaluate angle-dependent parameters of prototypes.

Goniophotometer Type C LGS 650 and DSP200 / Instrument Systems

Goniophotometer for angle-dependent measurement of photometric properties of luminaires.
credit: JOANNEUM RESEARCH /Schwarzl

Specifications

  • Sample size and type: Luminaires up to 130 cm and 10 kg
  • Up to 12 m measuring distance
  • 300 nm to 1100 nm for spectroradiometer
  • 0,1 mlx to 200 klx for photometer
  • C axis: -70° to + 250° (0° to 180° used for C-plane measurements)
  • γ axis: ±160°
  • Angular resolution: 0.01°

Goniophotometer CAS 140D and LEDGON 100 / Instrument Systems

Goniophotometer for angle-dependent measurement of photometric properties of luminaires.
Goniophotometer, credit: JOANNEUM RESEARCH /Bergmann

Specifications

  • Sample size and type: Luminaires up to 112 mm and 0.7 kg
  • Up to 70 cm measuring distance
  • 300 nm to 1100 nm for spectroradiometer
  • θ axis: ±100°, angular resolution: 0.1°
  • Φ axis: 360°, angular resolution: 1°

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