Light emitting diode
A light-emitting diode includes a substrate having a main surface, a light-emitting diode device arranged on the main surface, a translucent sealing resin portion sealing the light-emitting diode device so that the light-emitting diode device is implemented as an independent convex portion projecting from the main surface, and a reflector arranged on the main surface so as to surround an outer perimeter of the sealing resin portion with an inclined surface at a distance from the outer perimeter.
1. A light-emitting diode comprising:
a substrate having a main surface;
a plurality of light-emitting diode devices arranged on said main surface;
a translucent sealing resin portion sealing said plurality of light-emitting diode devices collectively so that said plurality of light-emitting diode devices are implemented as an independent convex portion projecting from said main surface; and
a reflector arranged on said main surface so as to surround an outer perimeter of said sealing resin portion with an inclined surface at a distance from the outer perimeter, said inclined surface comprising a sequential combination of three gradients of approximately 45°, approximately 60° and approximately 70°.
2. The light-emitting diode according to claim 1 , wherein said inclined surface is in such a shape that its cross-section is substantially in an arc shape and its gradient is steeper as a distance from said main surface is greater.
3. The light-emitting diode according to claim 1 , wherein said reflector has an inner inclined surface with a mirror finish.
4. The light-emitting diode according to claim 3 , wherein said mirror finish comprises aluminum or silver plating.
5. The light-emitting diode according to claim 1 , wherein said sealing resin portion is implemented by a transparent resin.
6. The light-emitting diode according to claim 1 , wherein said sealing resin portion is implemented by a phosphor-containing resin.
7. The light-emitting diode according to claim 1 , wherein said sealing resin portion is implemented by a scatterer-containing resin.
8. The light-emitting diode according to claim 1 , wherein said sealing resin portion is substantially in a hemispherical shape.
9. The light-emitting diode according to claim 1 , wherein said sealing resin portion is substantially in a columnar shape.
10. The light-emitting diode according to claim 1 , wherein said reflector comprises a first upper surface and a second upper surface that are parallel to said main surface, the inclined surface inclines from the first upper surface, and the second upper surface steps down from the first upper surface and is disposed outside said first upper surface.