Light-emitting device including chip-scale lens

A light-emitting device comprising:

• a light-emitting structure comprising a light-emitting stack structure including a first-conductivity-type semiconductor layer, an active layer, and a second-conductivity-type semiconductor layer, which are stacked, a first electrode layer electrically connected to the first-conductivity-type semiconductor layer, and a second electrode layer electrically connected to the second-conductivity-type semiconductor layer;
• and
• a lens on the light-emitting structure,
• wherein the lens is configured such that at least some of paths of light emitted by the light-emitting structure are inclined with respect to an axis about which the lens is located on the light-emitting structure and such that different paths of the at least some of the paths of light emitted by the light-emitting structure are directed far away from one another in a direction in which the light travels.