LED lamp and street lamp using the same
US8419215B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2009 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Dec 22, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting diode (LED) lamp and a street lamp using the same are provided. The LED lamp includes substrates for mounting an LED, reflectors, radiators, a mounting frame, a power source, and a top cover. The substrates and the reflectors are mounted on the radiators. Each of the substrates has a condenser cup mounted around a light-emitting surface of the LED, and the condenser cup has a curved wall for condensing light rays emitted by the LED to a certain angle range; each of the reflectors has a curved surface for performing a second time reflection condensing on the light rays that are processed through the reflection condensing by the curved wall. The LED lamp realizes uniform lighting in the whole lighting range through performing reflection twice, thereby achieving excellent directivity of illumination, uniform brightness, eliminating the glare phenomenon, and achieving desirable heat dissipation performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.