| 摘要 |
A light emitting diode includes a casing, comprising a concave accommodation space; a lead frame, disposed in the casing, wherein the lead frame has at least two individual leads which extend into the accommodation space; a light emitting chip, disposed in the accommodation space and electrically connected to the leads; and an encapsulating material, inside the accommodation space. The light emitting diode emits light along an optical axis. The ratio of a first tilt angle between the first reflecting wall and the optical axis, and a second tilt angle to a second tilt angle between the second reflecting wall and the optical axis is no more than 4. |
