Illumination apparatus
US8449149B2 · kind B2 · utility
3Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2008 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Jun 15, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination apparatus including a light-emitting unit and a lens module is described. The light-emitting unit is used for generating a light and has a light exit axis. The lens module has a light exit surface with a plurality of curved surfaces. The lens module receives the light and outputs the light from the curved surfaces. Further, the curved surfaces have at least two curvatures, each for adjusting a illumination range of the light output from the corresponding curved surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.