LIGHT SOURCE

摘要

The invention relates to a light source for generating light having a spectral emittance in at least a part of the range of 380 nm to 680 nm. The light has a spectral power distribution ?(?) as a function of the wavelength ? over a first range of 600 nm <= ? <= 680 nm, a second range of 505 nm <= ? <= 600 nm, and a third range of 380 nm <= ? <= 505 nm. A first ratio of the integral power distribution over said first range to that of a range of 380 nm l <= 0.95, A second ratio of the integral power distribution over said second range to that of a range of 380 nm m >= 0.08, A third ratio of the integral power distribution over said third range to that of a range of 380 nm s >= 0.03 or Ps >= 0.015 if Pl >= 0.75 A respective radiation emission peak in each of the first, second and third wavelength range has a full width half maximum (=FWHM) of at least 12 nm.