LMT RT 500

Measurement of reflectance and transmittance

LMT® RT 500 is a system for measurement of material reflection and transmission properties.
The equipment can be configured for different measurement tasks.

Measured observables

  • Reflectance ρ
  • Diffuse Reflectance ρd
  • Transmittance τ
  • Diffuse Transmittance τd
  • Reflectance of flat and convex surface rear-view mirrors
  • Transmittance τdif at diffuse light incidence (option)

Supported standards

  • DIN 5036 part 3
  • CIE Publ. No. 130
  • ECE Regulations R 46, R 81
  • ISO 5740 – 1982

Hardware

  • 500 mm diameter integrating sphere with probe holders
  • 30 mm diameter of light sensitive surface, fine V(λ)-approximation
  • Stabilised Standard Illuminant A source for measurement of ρ and ρd
  • Stabilised Standard Illuminant A source for measurement of τ and τd
  • Display unit with amplifier and 3½-digit display (0.0 – 100.0 %),
  • Attenuator for adjustment of displayed value to calibration standard
  • Analogue and BCD output