A compact and affordable luminaire goniophotometer

A compact and affordable luminaire goniophotometer which generates standard IESNA & EULUMDAT photometric files The PM-NFMS from Radiant Imaging combines a motorised goniometer stage with a ProMetric CCD imaging photometer to perform a near-field angular analysis of the luminance and colour from LEDs, luminaires and solid state lighting.

 

ProSource software then scales this to far-field luminous intensity data from which standard photometric files are generated.So-called photometric data defines how much light a luminaire emits and into what directions; lighting designers then use this standardised data format with all kinds of commercially-available lighting design programmes to determine the number and positioning of luminaires in order to create the desired illuminance.