Surface-textured encapsulations for use with light emitting diodes
View Patent ↗Surface-textured encapsulations for use with light emitting diodes. In an aspect, a light emitting diode apparatus is provided that includes a light emitting diode, and an encapsulation formed upon the light emitting diode and having a surface texture configured to extract light. In an aspect, a method includes encapsulating a light emitting diode with an encapsulation having a surface texture configured to extract light. In an aspect, a light emitting diode lamp is provided that includes a package, at least one light emitting diode disposed within the package, and an encapsulation formed upon the at least one light emitting diode having a surface texture configured to extract light. In another aspect, a method includes determining one or more regions of an encapsulation, the encapsulation configured to cover a light emitting diode, and surface-texturing each region of the encapsulation with one or more geometric features that are configured to extract light.
1. A light emitting diode apparatus comprising:
a light emitting diode;
an encapsulation formed upon the light emitting diode and having a surface-texturing configured to extract light: and
wherein said surface-texturing comprises one plane with at least a first region with pyramid non-periodic features and at least a second region with periodic features including semi-spherical features that are configured to extract light.
2. The apparatus of claim 1 , wherein said encapsulation comprises clear silicone.
3. The apparatus of claim 1 , wherein said encapsulation comprises a phosphor-containing silicone layer.
4. The apparatus of claim 1 , wherein said encapsulation is stamped with the surface-texturing.
5. The apparatus of claim 1 , wherein said encapsulation is molded to form the surface-texturing.
6. The apparatus of claim 1 , wherein said encapsulation receives the surface-texturing through a pattern transfer process.
7. The apparatus of claim 1 , wherein said surface-texturing comprises one or more geometric features configured for light extraction.
8. The apparatus of claim 1 , further comprising multiple light emitting diodes within the encapsulation.
9. The apparatus of claim 1 , further comprising multiple light emitting diodes within the encapsulation.
10. A lamp comprising the light emitting diode apparatus of claim 1 .
11. An illumination device comprising the light emitting diode of claim 1 .
12. The apparatus of claim 1 , wherein said non-periodic features comprise random pyramid shapes having a range of base areas and heights.