It is the angle passed which the goniophotometer measured intensity is below 50% of the maximum (Full Width at Half Maximum).

In the photometric test laboratory, a sophisticated goniophotometer gives fast and reliable measurements of the light distribution from luminaires.

Photometric evaluation of a huge variety of lighting products including TM5, TM10 and TM14 measurement of luminaires with our state of the art LMT Goniophotometer.

Our Lighting Industry Association registered Photometric Laboratory houses a sophisticated goniophotometer for fast and reliable measurement of luminaire light distribution.

Regular tests, such as the measuring of luminous flux with our goniophotometer, thermomanagement calculations and 3D measurements all combine to ensure consistent quality.

The rotating mirror Goniophotometer, purchased in 2017 is the latest cutting-edge device that uses the most advanced technology in the industry to make extremely precise photometric calculations.

To measure light intensity, the light source is placed inside a goniophotometer and rotated 180° to measure the light distribution and determine the brightest point.

To measure light intensity, the light source is placed inside a goniophotometer and rotated 180° to measure the light distribution and determine the brightest point.