Light emitting module, fabrication method therefor, and lamp unit

A lamp unit comprising:

• a light emitting module including a light emitting element having a light emitting surface on which a conductive portion receiving the supply of current for light emission is disposed, and a light wavelength conversion member which is a plate-like material mounted on the light emitting surface and emits light after converting a wavelength of the light emitted by the light emitting element;
• and
• an optical element configured to collect the light emitted by the light emitting module,
• wherein the light wavelength conversion member is formed such that at least a part of the conductive portion communicates with an external space when the light wavelength conversion member is mounted on the light emitting surface.