| 摘要 |
PURPOSE: To provide a light-emitting diode, which makes large the beam spread of irradiating light and at the same time, can increase the intensity of light in the vicinity of the center of the irradiating light. CONSTITUTION: In a light-emitting diode, which consists of lead terminals 1 and 2, a light-emitting diode element 30 die-bonded to the points of the terminals 1 and 2 and a molded part 33, which seals the point parts of the terminals 1 and 2 and the terminal 30, is provided with a lens surface formed on the element 30 and is made of a light-transmitting resin, the lens surface of the molded part 33 is formed into the shape of an elliptic spherical surface and the cross section of the lens surface is formed into an elliptic shape, Moreover, the lens surface in the short-diameter direction, which is passed through the element 30, of the molded part 33 is set in such a way that the radius of curvature of the lend surface is roughly focussed on the element 30. |
