Lens system for LED lights
US7837359B2 · kind B2 · utility
15Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2008 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Apr 11, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical device for distributing light produced by a white LED or other light-producing device includes a lens portion that refracts the light to provide a desired light intensity distribution, and a collimating portion that internally reflects light from the white LED. The optical device may be molded from an acrylic polymer material or the like. The reduced thickness of the device facilitates low cycle times and reduces warpage or other distortion that would otherwise be generated during the molding process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.