Introduction to photometric measurements - setting photometric distance скачать в хорошем качестве

Introduction to photometric measurements - setting photometric distance

When using a goniophotometer to collect photometric data of your lamps, i.e. the so-called LID diagrams (Luminous Intensity Distribution) you need to measure your lamp from a specific distance. This video explains technical details on how to set the distance and practical recommendations on how to measure different lamps and sources. The appropriate distance is the so-called minimum photometric distance It is the distance for which the inverse of the square law is true. When setting the minimum photometric distance, it is advisable to follow the recommendations of CIE standards, which suggest a distance of 5, 10 or 15 times the size of the luminaire’s illuminating surface.