ULTRA-VIOLET AND VISIBLE LIGHT EMITTING SYSTEM

摘要

A UV-VIS light emitting system is described. The system comprises a phosphor mixture emitting within the UVB and the visible range of the electromagnetic spectrum. The system has an efficiency of 84 lm/W or larger and a spectral power distribution E(?) such that the ratio O between the dose rate for vitamin D synthesis R D = ?E{?)A D (?)d? and the luminous flux F = ?E{?)V (?)d? is 10-6 J/m2lms or larger. The UV-VIS light emitting system is therefore suitable for general lighting applications while providing controlled stimulation of vitamin D synthesis.