Integral lens light emitting diode
US3981023A · kind A · utility
80Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1974 |
| Grant date | Sep 14, 1976 |
| Priority date | — |
| Expiry date | Sep 16, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S148/145
Abstract
A light emitting diode structure has one or more convex lens formations formed on the surface through which the light issues to provide larger incident angles and reduce internal reflection. Conveniently the structure comprises a multi-layer epitaxially grown structure, and the lens or lenses may be formed integral with the outer surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.