Lens and LED unit using the same
US9057805B2 · kind B2 · utility
1Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2013 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Aug 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/855
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens includes a bottom face, a light incident face defined in the bottom face, two opposite first lateral faces, two opposite second lateral faces and a light emerging face. The two first lateral faces are located adjacent to the light incident face, and the two second lateral faces are located away from the light incident face. The light emerging face includes two convex faces and a concave face interconnecting the two convex faces. The light emerging face has a light diverging capability along a first direction larger than that along a second direction perpendicular to the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.