Light emitting device

A light emitting device, comprising:

• a package which is formed of a resin and has a recess which is provided with a bottom face and two pairs of opposite inner walls surrounding the bottom face;
• the package having two pairs of opposite side walls made of the inner walls and corresponding outer walls;
• a light emitting element;
• a sealing resin provided in the recess for sealing the light emitting element;
• and a lead frame exposed from the package so as to contact the sealing resin at the bottom face,
• wherein the light emitting element is provided on the lead frame, and wherein
• the lead frame has a bottom plate portion and a reflector portion exposed from the package wherein the reflector portion contacts the sealing resin along only one wall of the pair of opposite inner walls, and a first angle between the reflector portion and the bottom face is greater than a second angle between the other wall opposite to the reflector portion and the bottom face,
• wherein thickness of the resin of the package from an inner wall to its corresponding outer wall is such that a thickness of one wall of a pair of the opposite side walls is greater than a thickness of another wall of the pair of the opposite side walls,
• wherein the light emitting element is placed at a portion closer to the reflector portion than to a center of the bottom face between a pair of the opposite side walls comprising the pair of opposite inner walls,
• and wherein a plurality of the light emitting elements are placed spaced apart from each other in a longitudinal direction of the bottom face.