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l = 397

With the goniometer it is possible to measure the luminous intensity distributions of all kind of narrow beam lights such as car headlights, stoplights and other signal lights. Airfield lights and marine lights can also be measured. The goniometer can be used in defining the photometric characteristics of the retro-reflectors. The measuring distance is from 1 m up to 50 m.

l = 150
Lighting Laboratory's Frontpage Helsinki University of Technology