Radiation angle changing element and light emitting device

A radiation angle changing element bonded to a housing, comprising:

• a glass substrate having a first principal surface;
• a resin layer provided on a first part of the first principal surface of the glass substrate, the resin layer having a microlens array on a surface opposite to the side of the glass substrate;
• and
• a second part provided outside the first part in a plan view on the first principal surface of the glass substrate, the second part including a third part with no resin layer,
• wherein the radiation angle changing element receives a light with a first radiation angle and emits a light with a second radiation angle larger than the first radiation angle.