Patent ID: 8727568

Claim:
A light-emitting apparatus comprising: a substrate comprising: a first surface side; a second surface side; and light-emitting elements mounted on the first surface side; an attachment member comprising: a concave portion comprising: an upper surface; a side surface facing a circumference of the substrate such that a gap is defined all around the substrate; and a bottom surface thermally touching the second surface side of the substrate; wherein the concave portion has a depth that does not allow the first surface side of the substrate arranged in the concave portion to project from the upper surface of the concave portion; and a mechanical fixing component comprising; a base portion fixed on the upper surface of the concave portion; and a pressure portion inclined from the base portion toward the bottom surface of the concave portion; wherein an end side of the pressure portion is in contact with the first surface side of the substrate at a position closer to the bottom surface than to the upper surface of the concave portion, and the mechanical fixing component is configured to hold the substrate in the concave portion by elastic pressing force of the pressure portion.