Light emitting device including different shapes of light emitting element having higher light extraction efficiency

A light emitting device comprising, with reference to an X-axis, a Y-axis orthogonal to the X-axis, and a Z-axis orthogonal to the X-axis and the Y-axis:

• a package that forms a recess in the Z-axis direction, has a first lead and a second lead arranged on a bottom surface of the recess and a resin section on a lateralwall of the recess to fix the first lead and the second lead, and when viewed in the Z-axis direction a shape which is surrounded by an upper side of an inner area of the lateralwall of the recess is substantially rectangular;
• a light emitting element that is arranged on the first lead and is in a triangular shape when viewed in the Z-axis direction, and a longest side of the light emitting element is positioned closer to a lower surface of the package;
• a second wire that electrically connects the light emitting element to the second lead;
• and
• reflective members that cover a part of an inner surface of the lateralwall and a part of the bottom surface at upper corners in the recess,
• wherein one side of the light emitting element adjacent to the second lead is substantially in parallel to at least part of one side of the first lead or the second lead, when viewed in the Z-axis direction,
• wherein, of four surfaces of the reflective member, three surfaces are in contact with the recess, and one remaining surface is in contact with a sealing member, and
• wherein the reflective members are separated from each other.