IP Library › Granted Patent US 7,476,004
Granted Patent B2
US 7,476,004 · App. 11/841,090 · Granted Jan 13, 2009

LED lighting lamp tube

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Quick Facts
Patent No.
US 7,476,004
App. No.
11/841,090
Granted
Jan 13, 2009
Kind
B2
Abstract

A LED lighting lamp tube comprises a transparent tube body, lamp caps, electrode pins, pedestals mounted at the connection position of the transparent tube body and the lamp caps, a power supply converter located adjacent to the lamp caps and inside the tube body, a PCB and a plurality of LED mounted on the PCB. These LED are connected in parallel or in series, and a light-scattering plate may be disposed over these LED. A plurality of LED chips can be directly mounted on the light-scattering plate. The lamp caps and the electrode pins possess the same international standards as common lamp tubes.

Claims (35)

1. A light emitting diode (LED) lighting tube, comprising:

a transparent tube body;

lamp caps at ends of the body;

electrode pins protruding from the lamp caps;

pedestals mounted at a junction of the transparent tube body and the lamp caps;

a power supply converter located adjacent to the lamp caps and inside the tube body;

a printed circuit board (PCB) inside the tube body and secured to the pedestals;

a plurality of LEDs connected in series or parallel and mounted on the PCB;

a power supply converter connected between the electrode pins and the PCB to provide direct current voltage to the LEDs; and

a light-scattering plate disposed around the LEDs;

wherein the LEDs comprise LED chips embedded into the light-scattering plate.

2. The LED lighting lamp tube of claim 1 , further comprising:

a radiator plate under the light scattering plate,

wherein the LEDs comprise LED chips installed on the radiator plate.

3. An LED lighting lamp tube, comprising:

a transparent tube body;

lamp caps at ends of the body;

one or more radiator pedestal attached to the tube body proximate to the lamp caps, the one or more radiator pedestal having a series of radiator leafs at spaced intervals;

a power supply converter located adjacent to the lamp caps and inside the tube body;

a printed circuit board (PCB) inside the tube body and secured to the one or more radiator pedestal;

a plurality of LEDs connected in series or parallel and mounted on the PCB; and

a power supply converter connected between a power cord and the PCB to provide direct current voltage to the LEDs.

4. The LED lighting lamp tube of claim 3 , wherein the power supply converter is installed in either one or both of the lamp caps.

5. The LED lighting lamp tube of claim 3 , wherein the lamp caps are made of heat conductive material.

6. The LED lighting lamp tube of claim 3 , wherein the tube body is made of transparent or translucent materials.

7. The LED lighting lamp tube of claim 3 , wherein an inner surface of the tube body comprises a wave-like shape with convex and concave portions.

8. The LED lighting lamp tube of claim 3 , wherein an outer surface of the tube body comprises a smooth shape.

9. The LED lighting lamp tube of claim 3 , further comprising:

a light-scattering plate disposed around the LEDs.

10. The LED lighting lamp tube of claim 3 , further comprising:

a light-scattering plate disposed around the LEDs.

11. The LED lighting lamp tube of claim 10 , wherein the LEDs comprise LED chips embedded into the light-scattering plate.

12. The LED lighting lamp tube of claim 10 , further comprising:

a radiator plate under the light scattering plate,

wherein the LEDs comprise LED chips installed on the radiator plate.

Priority Claims (1)
CN 2005 2 0002000 · Feb 21, 2005 · national
Continuity (2)
Continuation PCTCN200600024100 · Feb 21, 2006
Related Publication 20080037245A1 · Feb 14, 2008