Patent · US Expired

LED lamp tube

US7441922B2 · kind B2 · utility

43Cited by
4References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 14, 2005
Grant dateOct 28, 2008
Priority date
Expiry dateDec 14, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S362/80
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A LED lamp tube is disclosed to include a tube that admits light, circuit boards respectively mounted inside the tube, each circuit board carrying an array of LEDs, two end caps respectively capped on the ends of the tube to hold the circuit boards inside the tube and connectable to connectors of a conventional fluorescent bulb holder to secure the tube to the conventional fluorescent bulb holder, and a power cord extending from the circuit boards out of the tube for connection to power supply to obtain the necessary working voltage for the LEDs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.