TRANSMISSION & DIFFUSION MEASUREMENT SYSTEM LMT TD 123

Instrument for measurement of transmission and diffusion of plastic lenses

  • Evaluation of forward scattered light into a cone of 12°
  • Measurement geometry according Annex 6, Appendix 2 of UNECE regulations for road illumination devices
  • Optical bench with stabilized light source, collimator, high precision diaphragm, achromatic lenses and photometer head
  • Photometer display unit with 4½-digit display

Supported standards

  • UNECE R 19, 72, 98, 112, 113, 123, 149