Light-emitting-diode (LED) with spherical lens
US4841344A · kind A · utility
35Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Dec 7, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1089
Abstract
A light-emitting diode has a lens secured in self-adjusted fashion to a mesa surface of a semiconductor body by means of adhesive. The mesa surface is substantially perpendicular and centered with an emission axis of the light-emitting diode. Preferably, the lens is spherical and the mesa surface has a diameter comparable to or smaller than a diameter of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.