Light-emitting device

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.

Dependencies are inferred from the claim text.