Lighting devices and lighting modules

Abstract

The invention relates to a device that emits light in a preferred manner comprising: a short-wavelength light-emitting part; and a long-wavelength light-emitting part. and the adjacent layer that attaches the short-wavelength light-emitting part to the long-wavelength light-emitting part, in which each of the short-wavelength light-emitting parts and the long-wavelength light-emitting part includes a first-type semiconductor layer, an active layer, and a second-type semiconductor layer, the active layer of the long-wavelength light-emitting part contains more Indium (In) than of the short-wavelength light-emitting part, Short-wavelength light emission produces light with a shorter wavelength compared to long-wavelength light emission.