Vehicle perimeter lighting assembly and lighting method

Patent metadata

Field	Value
Publication number	US-11644171-B2
Application number	US-202016773159-A
Country	US
Kind code	B2
Filing date	Jan 27, 2020
Priority date	Jan 27, 2020
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

A vehicle perimeter lighting assembly includes, among other things, a base having a concave area and a support ledge, a light source supported on the support ledge such that light from the light source is emitted toward the concave area, and a reflector lining the concave area. The reflector is configured to redirect light emitted from the light source toward an area around a vehicle.

First claim

What is claimed is:

1. A vehicle perimeter lighting assembly, comprising:
a base having a concave area and a support ledge;
a light source supported on the support ledge such that light from the light source is emitted toward a portion of the concave area that is inboard the light source; and
a reflector lining the concave area, the reflector configured to redirect light emitted from the light source toward an area around a vehicle.

2. The vehicle perimeter lighting assembly of claim 1 , wherein the base is mounted to a vehicle such that the vehicle perimeter lighting assembly extends longitudinally between a front wheel of the vehicle and a rear wheel of the vehicle.

3. The vehicle perimeter lighting assembly of claim 1 , wherein the area is on a driver side or a passenger side of the vehicle, and is between a front wheel and a rear wheel of the vehicle relative to a longitudinal axis of the vehicle.

4. The vehicle perimeter lighting assembly of claim 1 , wherein the base is an extruded base.

5. The vehicle perimeter lighting assembly of claim 4 , wherein the reflector is an extruded reflector that is coextruded within the extruded base.

6. The vehicle perimeter lighting assembly of claim 1 , wherein the reflector is a metalized film.

7. The vehicle perimeter lighting assembly of claim 1 , further comprising a lens that covers the concave area.

8. The vehicle perimeter lighting assembly of claim 1 , wherein the light source comprises a plurality of light emitting diodes disposed along an axis of the vehicle perimeter lighting assembly.

9. The vehicle perimeter lighting assembly of claim 1 , wherein the reflector is configured to redirect more light toward an outer region of the area than the inner region of the area.

10. The vehicle perimeter lighting assembly of claim 1 , wherein the reflector is configured to redirect light to the area such that a maximum illuminance of the area due to the light is no more than three times a minimum illuminance of the area due to the light.

11. The vehicle perimeter lighting assembly of claim 1 , wherein the reflector is configured to redirect light emitted inboard to a position that is outboard the light source.

12. The vehicle perimeter lighting method of claim 10 , wherein at least a portion of the reflector is inboard the lighting device, and the portion redirects the light emitted from the lighting device outboard toward the area.

13. A vehicle perimeter lighting method, comprising:
emitting light from a lighting device in a direction, the direction extending away from an area around a vehicle, the direction extending toward a centerline of the vehicle; and
using a reflector to redirect the light emitted from the lighting device toward the area.

14. The vehicle perimeter lighting method of claim 13 , further comprising using the reflector to redirect more light toward an outer region of the area than the inner region of the area.

15. The vehicle perimeter lighting method of claim 13 , further comprising using the reflector to redirect light to the area such that a maximum illuminance of the area due to the light is no more than three times a minimum illuminance of the area due to the light.

16. The vehicle perimeter lighting method of claim 13 , wherein the area is on a driver side or a passenger side of the vehicle, and is between a front wheel and a rear wheel of the vehicle relative to a longitudinal axis of the vehicle.

17. The vehicle perimeter lighting method of claim 13 , further comprising supporting the lighting device on a support ledge of a perimeter lighting base, and positioning the reflector within a concave area of the perimeter lighting base with the reflector, wherein at least a portion of the reflector that redirects the light is disposed inboard from the lighting device and the perimeter lighting base.

18. The vehicle perimeter lighting method of claim 17 , further comprising adhesively securing the reflector to the concave areas of the perimeter lighting base.

19. The vehicle perimeter lighting method of claim 18 , further comprising coextruding the reflector with the perimeter lighting base.

20. The vehicle perimeter lighting method of claim 18 , further comprising covering the concave area with a lens.

Assignees

• Ford Global Tech Llc

Inventors

• Chen Linsheng

Classifications

• F21S41/321 Primary

  the reflector being a surface of revolution or a planar surface, e.g. truncated · CPC title

• B60Q1/247 Primary

  for illuminating the close surroundings of the vehicle, e.g. to facilitate entry or exit (for reverse drive B60Q1/22; by opening a side door B60Q1/323) · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• B60Q2400/40

  Welcome lights, i.e. specific or existing exterior lamps to assist leaving or approaching the vehicle · CPC title

• F21S41/20

  characterised by refractors, transparent cover plates, light guides or filters · CPC title