Concentrating lens of a light emitting diode lamp
US9640741B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Nov 1, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a concentrating lens of a light emitting diode lamp comprising a lens body. The lens body comprises a top portion, a bottom portion opposite the top portion, a light output surface positioned on the top portion, an optical surface formed concavely on the light output surface, and a light input surface concavely formed on the bottom portion and towards the top portion. The light input surface is disposed on a same axis with the optical surface. The light input surface comprises a light input side plane and a light input concave plane connected with the light input side plane. The concentrating lens is capable of distributing the light of LED to positions on each of the side walls of a light box close to and distal from the LED, and allowing the light emitted from the LED to lighten the light box uniformly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.