OPTICAL SEMICONDUCTOR LIGHT SOURCE, AND LIGHTING APPARATUS FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide an optical semiconductor light source and a lighting apparatus for vehicle, capable of alleviating degradation of light emitting efficiency and degradation of long-term reliability.SOLUTION: An optical semiconductor light source is provided with an optical semiconductor-mounting substrate, a plurality of semiconductor light-emitting elements fitted on the optical semiconductor-mounting substrate, a reflector fitted on the optical semiconductor-mounting substrate and surrounding the plurality of semiconductor light-emitting elements. The plurality of semiconductor light-emitting elements are arranged at an equal distance from the reflector, and a distance from the center of a space surrounded by the reflector to each of the plurality of semiconductor light-emitting elements is larger than a distance from each of the plurality of semiconductor light-emitting elements to the reflector.