JackyJiang

Goniophotometer make luminaire measurements more accessible and affordable

Goniophotometer make luminaire measurements more accessible and affordable.The measurement of luminaires has traditionally been performed with an illuminance meter placed in the photometric far-field which views the light source at one angle of azimuth and elevation at a time. The device under test is mounted on a motorised goniometer stage (the "goniometer") and the photometer views the lamp from a distance of between 10 and 25m, the actual working distance depending on the size of the light fitting. The cost of a typical far-field goniophotometer system (combined with the associated, large dark room) was often prohibitive, which meant that most manufacturers have used the services of independent test laboratories. The Lisungroup goniophotometer changes all this by exploiting the latest advances in imaging photometry to make luminaire measurements more accessible and affordable.