LED CHANNEL

• US 20110280010A1
• Filed: 05/12/2010
• Published: 11/17/2011
• Est. Priority Date: 05/12/2010
• Status: Active Grant

• Current Assignee: Ledtech Electronics Corp.
• Original Assignee: Ledtech Electronics Corp.
• Inventors: OU, Fred, Chen, Ying Hsuan
• Granted Patent: US 8,382,314 B2
• Time in Patent Office: Days
• US Class Current: 362/217.02
• 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 9/69 Details of refractors forming part of the light source
• CPC Class Codes: F21V 5/043 the lens having cylindrical faces, e.g. rod lenses, toric lenses
• 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 lamp includes an extrusion which is an elongate extrusion housing. It has an outside lens and a circuit board of elongated shape and mounted to an inside bottom portion of the elongate extrusion housing. A plurality of light emitting diodes can be mounted to the circuit board. A concave lens is mounted to an upper portion of the elongate extrusion housing. The outside lens covers the concave lens forming an outside air gap between the outside lens and the concave lens and a power wire connects to the circuit board. A base end cap receives a wire harness. The wire harness includes power, and the base end cap retains a base end of the outside lens and a base end of the extrusion. A top end cap retaining an end of the extrusion also retains an end of the outside lens.

Claims

1. An LED lamp comprising:

a. an extrusion which is an elongate extrusion housing;

b. an outside lens;

c. a circuit board of elongated shape and mounted to an inside bottom portion of the elongate extrusion housing;

d. a plurality of light emitting diodes mounted to the circuit board;

e. a concave lens mounted to an upper portion of the elongate extrusion housing, wherein the outside lens covers the concave lens forming an outside air gap between the outside lens and the concave lens; and

f. a power wire connecting to the circuit board.

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

a. a base end cap receiving a wire harness, wherein the wire harness further includes power, wherein the base end cap retains a base end of the outside lens and a base end of the extrusion;

b. a top end cap retaining an end of the extrusion and an end of the outside lens.

3. The LED lamp of claim 1, wherein the extrusion forms a generally circular cross-section with the outside lens.

4. The LED lamp of claim 1, wherein the extrusion is made of extruded aluminum.

5. The LED lamp of claim 1, wherein the outside lens has a pair of protrusions that are inwardly disposed for engaging with a pair of outside lens grooves.

6. The LED lamp of claim 1, wherein the circuit board is made in different parts, each part having a plurality of LED.

7. The LED lamp of claim 1, wherein the concave lens fits in a pair of concave lens grooves disposed at an upper part of the extrusion.

8. The LED lamp of claim 1, wherein the concave lens reduces the angle of light passing through the outside lens.

9. The LED lamp of claim 1, further comprising an intermediate lens formed as a thin film for adhering to an inside surface of outside lens, or for adhering to an outside surface of concave lens, wherein the intermediate lens is mounted intermediate the outside lens and the concave lens.

10. The LED lamp of claim 1, further comprising a plurality of longitudinal grooves disposed in an exterior surface of the extrusion.

11. The LED lamp of claim 1, wherein the outside lens or the thin film intermediate lens are be tinted or treated with anti-glare or anti UV or colored filter.

12. The LED lamp of claim 1, further comprising a pair of inside bottom grooves holding an inside lens;

wherein the inside lens is placed between the concave lens and the LED element, wherein the concave lens and the inside lens form a middle air gap between them;

wherein the inside lens and a bottom inside surface of the extrusion form an inside air gap.

13. The LED lamp of claim 1, wherein the inside lens is formed as a laminate of a first inside lens and a second inside lens.

15. The LED lamp of claim 1, wherein the outside lens has a pair of protrusions that are inwardly disposed for engaging with a pair of outside lens grooves, wherein the extrusion forms a generally circular cross-section with the outside lens.

16. The LED lamp of claim 1, wherein the circuit board is made in different parts, each part having a plurality of LED.

17. The LED lamp of claim 1, wherein the concave lens fits in a pair of concave lens grooves disposed at an upper part of the extrusion, further comprising a plurality of longitudinal grooves disposed in an exterior surface of the extrusion.

18. The LED lamp of claim 1, further comprising an intermediate lens formed as a thin film for adhering to an inside surface of outside lens, or for adhering to an outside surface of concave lens, wherein the intermediate lens is mounted intermediate the outside lens and the concave lens.

20. The LED lamp of claim 1, further comprising a pair of inside bottom grooves holding an inside lens;

wherein the inside lens is placed between the concave lens and the LED element, wherein the concave lens and the inside lens form a middle air gap between them;

wherein the inside lens and a bottom inside surface of the extrusion form an inside air gap.

14. An LED lamp comprising:

a. an extrusion which is an elongate extrusion housing, wherein the extrusion is made of extruded aluminum;

b. an outside lens;

c. a circuit board of elongated shape and mounted to an inside bottom portion of the elongate extrusion housing;

d. a plurality of light emitting diodes mounted to the circuit board;

e. a concave lens mounted to an upper portion of the elongate extrusion housing, wherein the outside lens covers the concave lens forming an outside air gap between the outside lens and the concave lens;

f. a power wire connecting to the circuit board;

g. a base end cap receiving a wire harness, wherein the wire harness further includes power, wherein the base end cap retains a base end of the outside lens and a base end of the extrusion;

h. a top end cap retaining an end of the extrusion and an end of the outside lens; and

wherein the concave lens reduces the angle of light passing through the outside lens.

19. The outside lens or the thin film intermediate lens can be tinted or treated with anti-glare or anti UV or colored filter for producing colored light, wherein the inside lens is formed as a laminate of a first inside lens and a second inside lens.