GONIOPHOTOMETER LMT GO-DS

Type C Goniometer with Mirror according to CIE 70

Measurement and evaluationof all types of lighting devices in their dedicated burning position with respect to gravity.
Rotating mirror is mounted on optical axis for lowest possible stray light contribution.

  • Luminous intensity distribution in C-planes or on conical surfaces
  • Absolute and zonal luminous flux
  • GO-DS 1600 for test objects up to 1 600 mm max. dimension
  • GO-DS 2000 for test objects up to 2 000 mm max. dimension
  • Max. test object load 50 kg

Supported standards

  • CIE 70, 121, S 025
  • EN-13032-1, EN-13032-4
  • IES LM 79-19

Photometer system

  • Measurement range 0.0001 lx – 80 000 lx (0.02 cd – 18 000 kcd at 15m)
  • General V(λ) mismatch index f1’ ≤ 1 % by means of LMT Mosaic Filtering®
  • Sum of 10 individual characteristics ftotal ≤ 3%
    (according to DIN 5032-7 or EN 13032-1)
  • Spectral mismatch correction factors:
    • LEDs Phosphor type fz ≤ 0,1 %
    • LEDs RGB type fz ≤ 1.5 %
    • Conventional light sources fz ≤ 1 %

Options

  • CIE color values with optional spectroradiometer or colorimeter
  • Harmonics power analysis
  • Optical Flicker Unit
⇨ Goniophotometry