Multilayer led assembly

• US 5,577,832 A
• Filed: 11/16/1995
• Issued: 11/26/1996
• Est. Priority Date: 01/26/1995
• Status: Expired due to Term

• Current Assignee: Lodhie, Pervaiz
• Original Assignee: Lodhie, Pervaiz
• Inventors: Lodhie, Pervaiz
• Primary Examiner(s): Husar, Stephen F.
• Assistant Examiner(s): Sember, Thomas M.
• Application Number:
  US08/558,463
• Time in Patent Office: 376 Days
• Field of Search: 362/800, 362/249, 362/235, 362/252, 362/240, 362/294, 362/373, 362/250, 362/457, 362/226
• US Class Current: 362/249.03
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21Y 2107/60 on stacked substrates
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

A multi-layer LED assembly which is used as a replacement light for equipment used in manufacturing environments. On each layer of the multi-layer assembly, there are multiple LEDs which are mounted perpendicular to a base. The base is used to provide electrical and mechanical connection to a socket. The LED assembly is constructed in a manner which allows the LED assembly to be inserted into a socket of a lighting fixture and then mechanical and electrical connections are provided without requiring rotation of the LED assembly. Electrical connection is by permanently attached wires between the base and the LEDs. The base is rotatable within a predetermined angular range which is sufficient to provide a proper mechanical and electrical connection without putting strain on the permanently attached electrical wires. The LED assembly may utilize multiple layers of LEDs, with each layer itself having multiple LEDs. The LEDs in each layer are mounted in a direction perpendicular to the base which results in light emanating in a direction perpendicular to the base.

Claims

1. An assembly for insertion into a socket, said assembly having at least one layer of LEDs mounted on at least one board, said assembly comprising:

a) a base adapted to be installed in the socket by rotation of the base;

b) an axle coupled to said base which passes through said at least one board onto which is mounted a layer of LEDs;

c) an insulating layer including a hole through which said axle passes and a slot;

d) a knob coupled to said axle at an end opposite said base and adjacent to said insulating layer, said knob having a pin adapted to engage said slot and move back and forth within said slot as said knob is rotated clockwise and counter clockwise.

2. The assembly defined by claim 1 further comprising a first electrically conductive wire coupled to said base and a lead of one of said LEDs.

3. The assembly defined by claim 2 further comprising a second electrically conductive wire coupled to said base and a lead of one of said LEDs different from the lead to which said first electrically conductive wire is coupled.

4. The assembly defined by claim 3 wherein said slot is dimensioned so that the knob is rotatable to an angle sufficient to enable the base to engage the socket, but not so far as to put tension onto said first wire and said second wire.

5. The assembly defined by claim 4 further comprising means for preventing said LED layers and said insulating layer from rotating when said knob is rotated.

6. The assembly defined by claim 5 wherein said prevention means is at least one notch disposed at an edge of each of said LED layers and said insulating layer and a hole through each of said LED layers and said insulating layer.

7. The assembly defined by claim 3 further comprising means for preventing said LED layers and said insulating layer from rotating when said knob is rotated.

8. The assembly defined by claim 7 wherein said prevention means is at least one notch disposed at an edge of each of said LED layers and said insulating layer and a hole through each of said LED layers and said insulating layer.

9. The assembly defined by claim 2 wherein said slot is dimensioned so that the knob is rotatable to an angle sufficient to enable the base to engage the socket, but not so far as to put tension onto said first wire.

10. The assembly defined by claim 9 further comprising means for preventing said LED layers and said insulating layer from rotating when said knob is rotated.

11. The assembly defined by claim 10 wherein said prevention means is at least one notch disposed at an edge of each of said LED layers and said insulating layer and a hole through each of said LED layers and said insulating layer.

12. The assembly defined by claim 2 further comprising means for preventing said LED layers and said insulating layer from rotating when said knob is rotated.

13. The assembly defined by claim 12 wherein said prevention means is at least one notch disposed at an edge of each of said LED layers and said insulating layer and a hole through each of said LED layers and said insulating layer.

14. The assembly defined by claim 1 wherein said slot is dimensioned so that the knob is rotatable to an angle sufficient to enable the base to engage the socket, but not so far as to put tension onto at least one wire coupling at least one electrical contact on said base to at least one lead of one of said LEDs.

15. The assembly defined by claim 14 further comprising means for preventing said LED layers and said insulating layer from rotating when said knob is rotated.

16. The assembly defined by claim 15 wherein said prevention means is at least one notch disposed at an edge of each of said LED layers and said insulating layer and a hole through each of said LED layers and said insulating layer.

17. The assembly defined by claim 1 wherein each of said LEDs has a pair of leads which are bent so that its corresponding LED is facing a direction perpendicular to said axle.

18. The assembly defined by claim 1 further comprising means for preventing said LED layers and said insulating layer from rotating when said knob is rotated.

19. The assembly defined by claim 18 wherein said prevention means is at least one notch disposed at an edge of each of said LED layers and said insulating layer and a hole through each of said LED layers and said insulating layer.