Supplemental lighting element

• US 10,703,260 B2
• Filed: 10/03/2016
• Issued: 07/07/2020
• Est. Priority Date: 10/01/2015
• Status: Active Grant

• Current Assignee: Emergency Technology Incorporated
• Original Assignee: Emergency Technology Incorporated
• Inventors: Baker, Douglas V., Hulse, George, Harness, Weston, Jacobsen, Brandon
• Primary Examiner(s): Dzierzynski, Evan P
• Application Number:
  US15/765,165
• Publication Number:
  US 20180257542A1
• Time in Patent Office: 1,373 Days
• CPC Class Codes: B60Q 1/2611 Indicating devices mounted on the roof of the vehicle
• CPC Class Codes: B60Q 1/2615 mounted on the vehicle body, e.g. with magnets
• CPC Class Codes: B60Q 1/2696 Mounting of devices using LEDs
• CPC Class Codes: B60Q 1/28 for indicating front of vehicle
• CPC Class Codes: B60Q 1/32 for indicating vehicle sides , e.g. clearance lights
• CPC Class Codes: B60Q 1/323 on or for doors illuminated exterior door handles B60Q1/2669; illuminated door locks E05B17/10
• CPC Class Codes: B60Q 1/52 for indicating emergencies
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/15 Strips of light sources
• CPC Class Codes: F21S 43/195 Details of lamp holders, terminals or connectors
• CPC Class Codes: F21S 43/27 Attachment thereof
• CPC Class Codes: F21S 45/47 Passive cooling, e.g. using fins, thermal conductive elements or openings
• CPC Class Codes: F21S 45/48 with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
• CPC Class Codes: F21S 45/49 Attachment of the cooling means
• CPC Class Codes: F21S 45/50 Waterproofing
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A supplemental lighting element (10) for a vehicle includes a circuit board (27) including at least one illuminator thereon, a housing having an optical element (12) in register with the at least one illuminator on the circuit board (27) and a heat sink (22) positioned between the circuit board (27) and the heat sink (22).

Claims

1. A lighting element for a vehicle comprising:

a circuit board including at least one illuminator;

a housing having an optical element in register with the at least one illuminator on the circuit board, and the housing including a peripheral wall enveloping a periphery of the circuit board, the housing having at least one inwardly-extending leg having a retainer thereon;

a heat sink having at least one recess in alignment with the at least one inwardly-extending leg on the peripheral wall of the housing; and

a thermal pad positioned between the circuit board and the heat sink;

wherein the inwardly-extending leg extends toward another portion of the peripheral wall, different from which the inwardly-extending leg extends, and wherein the inwardly-extending leg is positioned between the circuit board and the heat sink.

2. The lighting element of claim 1 wherein the optical element is made from a flexible silicon material.

3. The lighting element of claim 1 wherein the retainer on the at least one inwardly-extending leg of the housing is located within the recess on the heat sink.

4. The lighting element of claim 1 wherein the optical element has a bulbous partial conical portion surrounding each of the at least one illuminator on the circuit board.

5. The lighting element of claim 1 wherein the optical element has a bulbous portion extending toward each of the at least one illuminator on the circuit board.

6. The lighting element of claim 1, further comprising at least one fastener passing through at least one of the circuit board or the heat sink configured for at least one of attaching the circuit board with the heat sink or attachment of the lighting element to a mounting surface.

7. The lighting element of claim 6 further comprising a gap formed between the heat sink and the circuit board when the optical element is placed around the circuit board, the gap defined by the inwardly-extending leg in an uncompressed state.

8. The lighting element of claim 7 wherein a compressive force from the fastener forces the circuit board toward the heat sink, closing the gap by compressing the inwardly-extending leg between the heat sink and the circuit board to form a weather-tight seal.

9. The lighting element of claim 7 wherein, when the fastener is mounted to a vehicle, a compressive force from the fastener forces the peripheral wall of the housing toward the mounting surface to form a weather-tight seal.

10. The lighting element of claim 1 wherein the at least one illuminator on the circuit board comprises a set of light-emitting diodes (LEDs).

11. The lighting element of claim 10 wherein the set of LEDs are located in a two-dimensional array.

12. The lighting element of claim 1 wherein the optical element includes attenuation elements.

13. The lighting element of claim 1 wherein the optical element includes a first flexible silicon molding positioned in an optical path of the at least one illuminator and a second flexible silicon molding positioned about the periphery of the first flexible silicon molding and including the peripheral wall and the at least one inwardly-extending leg.

14. The lighting element of claim 13 wherein at least one of the first flexible silicon molding or second flexible silicon molding is at least partially opaque.

15. The lighting element of claim 14, wherein the at least one partially opaque first flexible silicon molding or second flexible silicon molding is colored to correspond with a color of a mounting surface for the lighting element.

16. A supplemental lighting element for a vehicle comprising:

a circuit board including at least one illuminator;

a housing having an optical element in register with the at least one illuminator on the circuit board, and the housing including a peripheral wall enveloping a periphery of the circuit board, the housing having at least one inwardly-extending leg having a retainer;

a heat sink having at least one recess in alignment with the at least one inwardly-extending leg on the peripheral wall of the housing; and

a thermal pad positioned between the circuit board and the heat sink;

wherein the inwardly-extending leg is positioned between, spacing, and in a contacting relationship with the circuit board and the heat sink.

17. A supplemental lighting element for a vehicle comprising:

a circuit board including at least one illuminator;

a housing having an optical element in register with the at least one illuminator, and the housing including a peripheral wall enveloping the circuit board, the housing having at least one inwardly-extending leg extending from the peripheral wall toward another portion of the peripheral wall;

a heat sink having at least one recess receiving the at least one inwardly-extending leg of the housing; and

wherein the inwardly-extending leg is positioned between the circuit board and the heat sink.