Lighting Device and Lighting Method

摘要

A lighting device comprises:
at least one white light source having a CRI of 75 or less, and
at least one additional source of visible light consisting of at least one additional source of visible light of a first additional hue, said at least one additional source of visible light being selected from among solid state light emitters and luminescent materials,
wherein mixing of light from said white light source and light from said at least one additional source of visible light produces a mixed illumination which has a CRI of greater than 75.