Lens and lens cap with sawtooth portion for light emitting diode
US6607286B2 · kind B2 · utility
200Cited by
8References
54Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2001 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | May 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lens mounted to a light emitting diode package internally redirects light within the lens so that a majority of light is emitted from the lens approximately perpendicular to a package axis of the light emitting diode package. In one embodiment, the light emitted by the light emitting diode package is refracted by a sawtooth portion of the lens and reflected by a total internal reflection portion of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.