Abstract: A light-emitting device includes a plurality of light source units each having a laser light source that outputs excitation light, and a phosphor unit that receives the excitation light and emits fluorescence. At least two light source units of the plurality of light source units are configured so that excitation light beams overlap each other on a light irradiation surface of the phosphor unit when the light irradiation surface is irradiated with the excitation light beams and so that longitudinal directions of long shapes of projection light beams on the light irradiation surface by the excitation light beams projected onto the light irradiation surface are parallel or substantially parallel to each other.

Abstract: A semiconductor light-emitting device includes a substrate, an n-type semiconductor layer located above the substrate, a semiconductor light-emitting layer located on the n-type semiconductor layer, a p-type semiconductor layer located on the semiconductor light-emitting layer. The semiconductor light-emitting device also includes an insulation film located on part of the p-type semiconductor layer in an unexposed section, a first transparent conductive film located on substantially the whole of the p-type semiconductor layer where the insulation film is not located in the unexposed section, and a second transparent conductive film located on the insulation film and the first transparent conductive film.

Abstract: A semiconductor light-emitting device includes a substrate, an n-type semiconductor layer located above the substrate, a semiconductor light-emitting layer located on the n-type semiconductor layer, a p-type semiconductor layer located on the semiconductor light-emitting layer. The semiconductor light-emitting device also includes an insulation film located on part of the p-type semiconductor layer in an unexposed section, a first transparent conductive film located on substantially the whole of the p-type semiconductor layer where the insulation film is not located in the unexposed section, and a second transparent conductive film located on the insulation film and the first transparent conductive film.