Elongated LED lamp for replacing a fluorescent lamp
US8956006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2011 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/3578
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An elongated LED lamp suitable for replacing a fluorescent lamp in a lamp fixture comprises a chassis having a first chassis end with two electrodes adapted to be respectively coupled to two electrodes in the lamp fixture supplying AC power, and a second chassis end. A light source depends from the chassis. A power regulating circuit is mounted to the chassis and is coupled to the two electrodes for providing DC power to the first light source. A first light collector conditions the light it collects light from the first light source for TIR propagation within a side-light distribution arrangement. An elongated side-light distribution portion depends from the chassis and receives light exiting the first light collector. Light-extraction structure extract light from the side of the first portion, along a length of the first portion, in a different direction from the direction of light received from the first light collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.