LIGHT-EMITTING DEVICE, LIGHT SOURCE FOR LIGHTING USE, AND LIGHTING DEVICE

摘要

A light-emitting device (an LED module (10)) is equipped with: a long substrate (11); an LED element (12) that is mounted on a first main surface of the substrate (11); a first metal pattern (a wiring line (13)) that is patterned on the first main surface of the substrate (11) and is electrically connected to the LED element (12); and a second metal pattern (a metal pattern (14)) that is patterned on a second main surface, which is a surface opposed to the first main surface, of the substrate (11) and is not wired.