Vehicle illumination systems and methods

Patent metadata

Field	Value
Publication number	US-12122443-B2
Application number	US-202318375690-A
Country	US
Kind code	B2
Filing date	Oct 2, 2023
Priority date	Mar 8, 2018
Publication date	Oct 22, 2024
Grant date	Oct 22, 2024

Abstract

Various implementations of an illumination system include a light guide, a housing having a ceiling and defining a window, and a base coupled to the housing. The light guide is supported between the base and the ceiling. At least one light source is disposed adjacent a first end of the light guide. The light guide transmits the light from the light source through at least a portion of the outer surface of the light guide and the window. One or more tabs extending from the base each define at least one opening, and the at least one opening defined by each tab is alignable with an opening in a spoke portion of a frame. The openings receive a fastener to couple the base to the spoke portion. The housing may be integrally formed with a trim cover coupled to the frame.

First claim

What is claimed is:

1. An illumination system within a vehicle, the illumination system comprising:
a first light guide having an outer surface and an inner surface that extends between a first end and a second end of the first light guide;
a second light guide having an outer surface and an inner surface that extends between a first end and a second end of the second light guide;
a first light source disposed adjacent the first end of the first light guide, the first light source emitting light into the first end of the first light guide;
a second light source disposed adjacent the first end of the second light guide, the second light source emitting light into the first end of the second light guide;
a third light source disposed adjacent the inner surface of the first light guide, the third light source emitting light into the inner surface of the first light guide; and
a fourth light source disposed adjacent the inner surface of the second light guide, the fourth light source emitting light into the inner surface of the second light guide;
wherein the first light guide transmits light from the first light source and the third light source through at least a portion of the outer surface of the first light guide;
wherein the second light guide transmits light from the second light source and the fourth light source through at least a portion of the outer surface of the second light guide;
wherein the illumination system is coupled to a steering grip of a steering assembly; and
wherein the first light guide is coupled to a first portion of the steering grip and the second light guide is coupled to a second portion of the steering grip.

2. The illumination system of claim 1 , wherein the first portion of the steering grip is a left portion of the steering grip and the second portion of the steering grip is a right portion of the steering grip.

3. The illumination system of claim 2 , wherein the outer surface and the inner surface of the first light guide are arcuate-shaped between the first end and the second end of the first light guide and are spaced apart and opposite each other relative to a plane that extends through the first end and the second end of the first light guide and is parallel to the outer surface and the inner surface of the first light guide, and wherein the outer surface and the inner surface of the second light guide are arcuate-shaped between the first end and the second end of the second light guide and are spaced apart and opposite each other relative to a plane that extends through the first end and the second end of the second light guide and is parallel to the outer surface and the inner surface of the second light guide.

4. The illumination system of claim 1 , wherein the first light source and the second light source are visible light emitting diodes (LEDs).

5. The illumination system of claim 4 , wherein the third light source and the fourth light source are infrared light emitting diodes (LEDs).

6. The illumination system of claim 5 , further comprising a first lens having an inner surface and an outer surface, the inner surface of the first lens being disposed adjacent the outer surface of the first light guide, and further comprising a second lens having an inner surface and an outer surface, the inner surface of the second lens being disposed adjacent the outer surface of the second light guide.

7. The illumination system of claim 6 , wherein the outer surface of the first lens and the outer surface of the second lens comprise an opaque cover defining a transparent and/or translucent portion.

8. The illumination system of claim 7 , wherein visible light from the first light source passes through the transparent and/or translucent portion of the opaque cover of the first lens and visible light from the second light source passes through the transparent and/or translucent portion of the opaque cover of the second lens.

9. The illumination system of claim 8 , wherein the outer surface of the first lens further comprises an infrared transmissive portion, wherein infrared light from the third light source passes through the infrared transmissive portion of the outer surface of the first lens, and wherein the outer surface of the second lens further comprises an infrared transmissive portion, wherein infrared light from the fourth light source passes through the infrared transmissive portion of the outer surface of the second lens.

10. The illumination system of claim 6 , wherein the first lens and the second lens comprise micro-lenses.

11. The illumination system of claim 10 , wherein a density of the micro-lenses of the first lens increases as a distance from the first light source increases and a density of the micro-lenses of the second lens increases as a distance from the second light source increases.

12. The illumination system of claim 1 , further comprising a first lens having an inner surface and an outer surface, the inner surface of the first lens being disposed adjacent the outer surface of the first light guide, and further comprising a second lens having an inner surface and an outer surface, the inner surface of the second lens being disposed adjacent the outer surface of the second light guide.

13. The illumination system of claim 12 , wherein the first lens and the second lens comprise micro-lenses.

14. The illumination system of claim 13 , wherein a density of the micro-lenses of the first lens increases as a distance from the first light source increases and a density of the micro-lenses of the second lens increases as a distance from the second light source increases.

15. A steering assembly for a vehicle, the steering assembly comprising:
a steering grip including a left portion and a right portion coupled to the left portion; and
an illumination system including:
a left light guide coupled to the left portion of the steering grip and defining a first longitudinal axis;
a first light source emitting light into the left light guide parallel to the first longitudinal axis;
a second light source emitting light into the left light guide oblique to the first longitudinal axis;
a right light guide coupled to the right portion of the steering grip and defining a second longitudinal axis;
a third light source emitting light into the right light guide parallel to the second longitudinal axis; and
a fourth light source emitting light into the right light guide oblique to the second longitudinal axis.

16. The steering assembly of claim 15 , wherein the first light source and the third light source are visible light emitting diodes (LEDs).

17. The steering assembly of claim 16 , wherein the second light source and the fourth light source are infrared light emitting diodes (LEDs).

18. The steering assembly of claim 17 , further comprising a left lens coupled to the left portion of the steering grip adjacent the left light guide and a right lens coupled to the right portion of the steering grip adjacent the right light guide.

19. The steering assembly of claim 18 , wherein the left lens and the right lens comprise an opaque cover defining a transparent and/or translucent portion.

20. The steering assembly of claim 19 , wherein the left lens and the right lens further comprise an infrared transmissive portion.

Assignees

• Joyson Safety Systems Acquisition Llc

Inventors

• Lisseman Jason
• Marc Adorian
• Staszak Erick
• Gardner Valerie

Classifications

• B60Q3/70

  characterised by the purpose · CPC title

• B60Q3/62

  using light guides · CPC title

• B60Q3/80

  Circuits; Control arrangements (for dashboards B60Q3/16; for mass transit vehicles B60Q3/47) · CPC title

• B60Q3/283

  Steering wheels; Gear levers · CPC title

• B62D1/046

  Adaptations on rotatable parts of the steering wheel for accommodation of switches · CPC title