LED lens and LED module for two-sided lighting, and LED two-sided lighting apparatus using same
US9163805B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2011 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a light emitting diode (LED) lens for double-sided lighting, including a light diffusion agent diffused therein, the LED lens including a light receiving portion receiving light, a first light transmitting portion corresponding to the light receiving portion and transmitting a portion of the light in an upward direction therefrom, a reflective portion extended from the first light transmitting portion and reflecting a portion of the light, and a second light transmitting portion facing the first light transmitting portion and transmitting the light reflected by the reflective portion in a downward direction therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.