IP Library Granted Patent US 11,408,583
Granted Patent B1
US 11,408,583 · App. 17/396,850 · Granted Aug 9, 2022

LED light fixture

Inventor: Tiejun Wang (Lin'an, CN)
F21V3/04F21V23/04F21Y2113/10F21Y2115/10
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,408,583
App. No.
17/396,850
Granted
Aug 9, 2022
Kind
B1
Abstract

Disclosed embodiments provide a light emitting diode (LED) light fixture that comprises an LED light module. Multiple LEDs are arranged in a first series connection on a circuit board. A first power lead is configured and disposed as a positive power source connection. Aa second power lead is configured and disposed as a negative power source connection. The LEDs are densely arranged on the circuit board such that the LEDs have an average linear interspacing and an average lateral interspacing that enable high-density lighting. Disclosed embodiments provide a significant amount of light in a small, portable package. Embodiments include a rimless light cover to further increase the amount of light emanating from the light fixture.

Claims (35)

1. A light fixture comprising a light module, the light module comprising:

a plurality of light emitting diodes (LEDs) arranged in a first series connection on a circuit board;

a light source housing, configured and disposed to contain the circuit board;

wherein the LEDs are positioned on the circuit board to have an average linear interspacing ranging from 1 millimeter to 4 millimeters and an average lateral interspacing ranging from 6 millimeters to 20 millimeters;

a plurality of clips disposed on the light source housing;

an adapter ring, configured and disposed to engage the plurality of clips;

a rimless cover, configured and disposed to attach to the light source housing; and

a correlated color temperature (CCT) control switch affixed to the light fixture, wherein the CCT control switch is configured and disposed to cause the LEDs to output a CCT with a lower range limit of 1500K.

2. The light fixture of claim 1 , wherein the rimless cover is comprised of plastic.

3. The light fixture of claim 1 , wherein the rimless cover is comprised of glass.

4. The light fixture of claim 1 , wherein the rimless cover is round.

5. The light fixture of claim 1 , wherein the rimless cover is rectangular.

6. The light fixture of claim 5 , wherein the rimless cover is square.

7. The light fixture of claim 1 , wherein the plurality of clips comprises two clips.

8. The light fixture of claim 1 , wherein each LED of the plurality of LEDs comprises a wire-bonded LED.

9. The light fixture of claim 1 , wherein each LED of the plurality of LEDs comprises a flip chip LED.

10. The light fixture of claim 1 , wherein each LED of the plurality of LEDs is disposed on a substrate that comprises aluminum oxide.

11. The light fixture of claim 1 , wherein the plurality of LEDs includes a first subset of LEDs corresponding to a first series connection, and configured and disposed to illuminate in a first color, and a second subset of LEDs corresponding to a second series connection, and configured and disposed to illuminate in a second color.

12. An illumination system comprising:

an enclosure;

a light module disposed within the enclosure, the light module comprising:

a plurality of light emitting diodes (LEDs) arranged in a first series connection on a circuit board;

a first power lead configured and disposed as a positive power source connection, and;

a second power lead configured and disposed as a negative power source connection; wherein the LEDs are positioned on the circuit board to have an average linear interspacing ranging from 1 millimeter to 4 millimeters and an average lateral interspacing ranging from 6 millimeters to 20 millimeters;

a power source coupled to the light module;

a switch configured and disposed to connect the light module to the power source;

a rimless cover, configured and disposed to attach to the enclosure and

a correlated color temperature (CCT) control switch affixed to the enclosure, wherein the CCT control switch is configured and disposed to cause the LEDs to output a CCT with a lower range limit of 1500K.

13. The illumination system of claim 12 , wherein the plurality of LEDs includes a first subset of LEDs corresponding to a first series connection, and configured and disposed to illuminate in a first color, and a second subset of LEDs corresponding to a second series connection, and configured and disposed to illuminate in a second color.

14. The illumination system of claim 12 , wherein the circuit board is formed in a rectangular shape.

15. The illumination system of claim 12 , wherein the circuit board is formed in a circular shape.

16. The illumination system of claim 12 , wherein the rimless cover is comprised of plastic.

17. The illumination system of claim 12 , wherein the rimless cover is comprised of glass.

18. The illumination system of claim 12 , wherein the rimless cover is round.

19. The illumination system of claim 12 , wherein the rimless cover is square.