Semiconductor surface lenses and shaped structures
US6215134A · kind A · utility
11Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1998 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | May 8, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/819
Abstract
A lens is formed out of semiconductor material. The semiconductor produces light which is coupled to the lens. The lens focuses the light and also minimizes refractive reflection. The lens is formed by a graded aluminum alloy, which is oxidized in a lateral direction. The oxidation changes the effective shape of the device according to the grading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.