Package for light emitting element and manufacturing method thereof
US7411222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2004 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Feb 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8506
Abstract
A package for light emitting element including a package main body 1 having a bottom face 7a on which a light emitting element 2 is arranged, and a concave portion 7 which is formed in an inverted truncated cone shape by an inner wall face 7b intersecting with the bottom face 7a with a predetermined angle, and a translucent member 6 filled in the concave portion 7 of the package main body 1, the angle between the inner wall face 7b composing the concave portion 7 and the bottom face 7a is selected within ±15° of the incident critical angle in which a direct light radiated from the light emitting element 2 undergoes total reflection at the interface between the translucent member 6 and air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.