An exemplary light emitting diode (30) includes a light output unit (31),
an optical lens (33) and a reflective film (35). The optical lens
includes a light input surface (331) facing the light output unit, a top
interface (333) opposite to the light input surface, and a light output
surface (335) between the light input surface and the top interface. The
reflective film is integrally formed on and in immediate contact with the
top interface of the optical lens. The reflective film is made of a
transparent resin matrix material dispersed with a plurality of
reflective particles. A method for making the light emitting diode is
also provided.