DMS 903 - Tailor-made for large displays

The DMS 903 is ideal for photometric and colorimetric analysis of large displays. The measurement system is based on a 6-axis goniometer for determining angle-dependent characteristics and is used in quality control, as well as research and development. It permits analysis of test specimens up to a diagonal of 1500 mm (approx. 60’’), and measurement-area of 750 mm (approx. 30’’).


  • Characterization of emissive, transmissive, reflective, and transflective displays
  • 6 motorized axes for viewing-angle scan and surface scanning of samples, without rotation of the test specimen during the measurements
  • Optional array spectrometer for precise radiometric and photometric measurements
  • Analysis of all photometric and colorimetric characteristics as a function of viewing angle, electrical driving, time and temperature (optionally with forced-air temperature-control chamber)
  • Optional specular illumination for evaluation of the reflectance characteristics (e.g. BRDF) and diffuse light source with adjustable diameter (1° to 15°) for simulation of ambient illumination

Technical Specifications:

DMS 903


Goniometer / Positioning

6 motorized axes (inclination, azimuth and height adjustment of the measuring head, x-y positioning, inclination of the reflective illumination device)

Maximum sample size

1600 x 1300 mm

Maximum traverse

600 x 450 mm

Maximum sample thickness

300 mm

Alignment of the sample

Horizontal (no rotation of the sample during measurement)


Photometer PMT 3/100 (standard);
Spectrometer (optional)


Diffuse transmissive illumination (standard) and hemispherical reflective illumination (optional);
Specular illumination for evaluation of reflectance characteristics (e. g. BRDF) (optional)

Measurement-spot sizes

0.5 / 1 / 2 / 3 / 5 / 7 / 10 mm

Dimensions instrument
(L x W x H)

approx. 1900 x 1500 x 1860 mm

Dimensions electronics rack
(L x W x H)

approx. 750 x 600 x 1250 mm

Weight instrument

approx. 700 kg

Weight electronics rack

approx. 120 kg


Further Information