Light emitting device and vehicle lamp

A light emitting device comprising:

• a head portion including a surface including a convex portion having a tip surface, a back surface opposite to the surface, and a through hole penetrating the tip surface of the convex portion and the back surface;
• a light-transmitting member including a front surface and a rear surface opposite the front surface, the rear surface including a first recess to be fitted to the convex portion, the first recess having a bottom surface;
• a bonding material that bonds part of the surface of the head portion around the convex portion to the rear surface of the light-transmitting member while the convex portion is fitted to the first recess and the bottom surface of the first recess covers the through hole;
• a semiconductor light emitting element configured to emit light that passes through the through hole and is used to irradiate the light-transmitting member;
• and
• an optical system configured to condense the light from the semiconductor light emitting element and locally irradiate the light-transmitting member with the light.