LED LIGHTING TUBE ADOPTING ISOLATED FLUORESCENT CONVERSION TECHNOLOGY

• US 20110148298A1
• Filed: 11/09/2010
• Published: 06/23/2011
• Est. Priority Date: 12/18/2009
• Status: Abandoned Application

• Current Assignee: Shenzhen Cgx Led Lighting Industrial Co., Ltd.
• Original Assignee: Shenzhen Cgx Led Lighting Industrial Co., Ltd.
• Inventors: Wang, Weiguo, LI, BINGQIAN, Peng, Hongcun
• Application Number:
  US12/942,989
• Publication Number:
  US 20110148298A1
• Time in Patent Office: Days
• US Class Current: 315/35
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• CPC Class Codes: F21K 9/64 using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lighting tube includes a strip-shaped metal shell, a LED light source, a white light conversion film, and a driving power supply. The metal shell defines two spaced slots inwardly. The white light conversion film and the LED light source are respectively fixed in the two slots. The white light conversion film is isolated from the LED light source. The driving power supply is accommodated in the metal shell.

Claims

1. An LED lighting tube comprising:

a metal shell, configured in a strip-shaped form, defining two spaced slots inwardly;

a white light conversion film and an LED light source, respectively fixing in the two slots, the white light conversion film being isolated from the LED light source; and

a driving power supply accommodated in the metal shell.

2. The LED lighting tube according to claim 1, further comprises two lamp holders respectively connected to both ends of the metal shell.

3. The LED lighting tube according to claim 1, wherein the white light conversion film includes a carrier, and a white LED phosphor layer which is coated on the carrier by printing process.

4. The LED lighting tube according to claim 1, wherein the LED light source includes a metal circuit board and a blue or puiple, or UV LED chip array formed on the metal circuit board.

5. The LED lighting tube according to claim 1, wherein a surface of the metal shell is configured with more than one convex edge for increasing the area of heat elimination.

6. The LED lighting tube according to claim 4, wherein one or more protrusions is formed on the surface of the LED chip array by sealed colloid.

7. An LED lighting tube comprising:

a metal shell in a strip-shaped form including a thin board whose edge contacting with an inner wall of the metal shell;

two slopes, each having a lower edge contacting with the thin board and an upper edge;

two receiving board, each having an edge contacting with the inner wall of the metal shell and an opposite edge contacting with the upper edge of a corresponding slope;

an LED light source being disposed on the thin board, for emitting blue or purple or UV light;

a white light conversion film being disposed on the receiving board, for transform the blue or purple or UV light into white light; and

a driving power supply accommodated in the metal shell.

8. The LED lighting tube according to claim 7, further comprises two lamp holders respectively connected to both ends of the metal shell.

9. The LED lighting tube according to claim 7, wherein the white light conversion film is fixed to the thin board via adhesive, and the LED light source is fixed to the receiving board via the thermal conductive adhesive.

10. The LED lighting tube according to claim 7, wherein each receiving board defines a first slot, the two slot corporately receiving the white light conversion film.

11. The LED lighting tube according to claim 7, wherein the thin board defines a second slot for receiving the LED light source.

12. The LED lighting tube according to claim 7, wherein the white light conversion film includes a carrier, and a white LED phosphor layer which is coated on the carrier by printing process.

13. The LED lighting tube according to claim 7, wherein the LED light source includes a metal circuit board and a blue or purple, or UV LED chip array formed on the metal circuit board.

14. The LED lighting tube according to claim 7, wherein the slopes have a reflective layer on a surface thereof, for improving the luminous efficiency of LED lighting tube.

15. The LED lighting tube according to claim 7, wherein a surface of the metal shell is configured with more than one convex edge for increasing the area of heat elimination.

16. The LED lighting tube according to claim 13, wherein one or more protrusions is formed on the surface of the LED chip array by sealed colloid.