Thin panel lit cluster

• US 6,520,654 B2
• Filed: 12/29/2000
• Issued: 02/18/2003
• Est. Priority Date: 12/29/2000
• Status: Expired due to Term

• Current Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Jones, Thomas L., Luettgen, Michael J., Angell, Daniel K., Kees, Don A., Ewers, Paul S.
• Primary Examiner(s): Husar, Stephen
• Assistant Examiner(s): Zeade, Bertrand
• Application Number:
  US09/751,779
• Publication Number:
  US 20020085366A1
• Time in Patent Office: 781 Days
• Field of Search: 362/23, 362/29, 362/30, 362/31, 362/85, 362/482, 362/488, 362/489, 362/26, 405/46, 116/DIG.36, 116/DIG.286, 116/DIG.288
• US Class Current: 362/23
• CPC Class Codes: B60K 2360/33 Illumination features
• CPC Class Codes: B60K 2360/331 Electroluminescent elements
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: G01D 11/28 Structurally-combined illuminating devices
• CPC Class Codes: Y10S 116/36 Illuminated dial and pointer

Abstract

A thin panel lit cluster including a graphics appliqué with a first and second side and at least one opaque section and one translucent section. A light-carrying panel with a first and second side is positioned such that the first side is adjacent to the second side of the graphics appliqué. The light-carrying panel has at least one opening defined in it and at least one light source is positioned to align with the opening. Opposite the light source, the light-carrying panel has a first light-redirecting area nearest its first side. In another position on the light-carrying panel, there is a second light-redirecting area nearest the second side of the light-carrying panel and opposite a translucent section of the graphics appliqué.

Claims

1. A thin panel lit cluster comprising:

a graphics appliqué

having a first side and a second side;

said graphics appliqué

having at least one opaque section and at least one translucent section;

a light-carrying panel having a first side and a second side and positioned such that said first side is adjacent to said second side of said graphics appliqué

;

at least one opening defined in said light-carrying panel;

at least one light source positioned to align with said opening;

at least one first light-redirecting area positioned nearest said first side of said light-carrying panel opposite said light source; and

at least one second light-redirecting area positioned nearest said second side of said light-carrying panel opposite said translucent section on said graphics appliqué

.

2. The thin panel lit cluster of claim 1, wherein the dimensions of said at least one opening are optimized according to the type and positioning of said light source.

3. The thin panel lit cluster of claim 2, wherein the dimensions of said at least one opening are optimized according to the type and positioning of said at least one first light-redirecting area.

4. The thin panel lit cluster of claim 3, wherein said at least one first light-redirecting area is an area of diffusing material applied to said second side of said graphics appliqué

.

5. The thin panel lit cluster of claim 3, wherein said at least one first light-redirecting area is a holographic element applied to said second side of said graphics appliqué

.

6. The thin panel lit cluster of claim 3, wherein said at least one first light-redirecting area is a reflective shape pressed into said first side of said light-carrying panel opposite said light source.

7. The thin panel lit cluster of claim 3, wherein said at least one first light-redirecting area is a refractive shape injection molded into said first side of said light-carrying panel opposite said light source.

8. The thin panel lit cluster of claim 1, wherein said graphics appliqué

is positioned such that said first side of said graphics appliqué

is visible by an operator.

9. The thin panel lit cluster of claim 8, further comprising, a printed circuit board located adjacent to said second side of said light-carrying panel.

10. The thin panel lit cluster of claim 9, wherein said light source is mounted on the surface of said printed circuit board.

11. The thin panel lit cluster of claim 10, wherein said light source is a light emitting diode.

12. The thin panel lit cluster of claim 10, wherein said second at least one light-redirecting area is substantially aligned with said at least one translucent section of said graphics appliqué

.

13. The thin panel lit cluster of claim 12, wherein said at least one second light-redirecting area is an area of light-diffusing material.

14. The thin panel lit cluster of claim 13, wherein said at least one second light-redirecting area is a holographic element applied to said light-carrying panel.

15. The thin panel lit cluster of claim 9, wherein the largest surfaces of said light-carrying panel are smooth.

16. The thin panel lit cluster of claim 1, wherein there is a plurality of said openings defined upon said light-carrying panel.

17. The thin panel lit cluster of claim 16, wherein there is single light source aligned with each of said openings.

18. The thin panel lit cluster of claim 17, wherein each of said light sources is of a first color.

19. The thin panel lit cluster of claim 18, wherein at least one of said light sources is of a second color different from said first color.

20. The thin panel lit cluster of claim 18, wherein a layer of fluorescent material is applied to the outer diameter of said at least one opening.

21. The thin panel lit cluster of claim 18, wherein a layer of filtering material is applied to the outer diameter of said at least one opening.

22. A thin panel lit cluster comprising:

a graphics appliqué

having a first side and a second side;

said graphics appliqué

having at least one opaque section and at least one translucent section;

a light-carrying panel having a first side and a second side and positioned such that said first side is adjacent to said second side of said graphics appliqué

;

at least one opening defined in said light-carrying panel;

at least one light source positioned to align with said opening; and

at least one light-redirecting area positioned nearest said first side of said light-carrying panel opposite said light source; and

at least one area of light-absorbing material positioned on said light-carrying panel such that light is transmitted through said translucent sections of said graphics appliqué

.

23. The thin panel lit cluster of claim 22, wherein the dimensions of said at least one opening are optimized according to the type and positioning of said light source.

24. The thin panel lit cluster of claim 23, wherein the dimensions of said at least one opening are optimized according to the type and positioning of said at least one light-redirecting area.

25. The thin panel lit cluster of claim 24, wherein said at least one light-redirecting area is an area of light-diffusing material applied to said second side of said graphics appliqué

.

26. The thin panel lit cluster of claim 24, wherein said at least one light-redirecting area is a holographic element applied to said second side of said graphics appliqué

.

27. The thin panel lit cluster of claim 24, wherein said at least one light-redirecting area is a reflective shape pressed into said first side of said light-carrying panel opposite said light source.

28. The thin panel lit cluster of claim 24, wherein said at least one light-redirecting area is a refractive shape injection molded into said first side of said light-carrying panel opposite said light source.

29. The thin panel lit cluster of claim 22, wherein said graphics appliqué

is positioned such that said first side of said graphics appliqué

is visible by an operator.

30. The thin panel lit cluster of claim 29, further comprising a printed circuit board located adjacent to said second side of said light-carrying panel.

31. The thin panel lit cluster of claim 30, wherein said light source is mounted on the surface of said printed circuit board.

32. The thin panel lit cluster of claim 31, wherein said light source is a light emitting diode.

33. The thin panel lit cluster of claim 32, wherein said at least one area of light-absorbing material is substantially aligned with said at least one translucent section of said graphics appliqué

.

34. The thin panel lit cluster of claim 33, wherein said at least one area of light-absorbing material is applied to said second side of said graphics appliqué

.

35. The thin panel lit cluster of claim 33, wherein said at least one area of light-absorbing material is applied to said first side of said light-carrying panel adjacent to said graphics appliqué

.

36. The thin panel lit cluster of claim 31, wherein the largest surfaces of said light-carrying panel are smooth.

37. The thin panel lit cluster of claim 22, wherein there is a plurality of said openings defined upon said light-carrying panel.

38. The thin panel lit cluster of claim 37, wherein there is single light source aligned with each of said openings.

39. The thin panel lit cluster of claim 38, wherein each of said light sources is of a first color.

40. The thin panel lit cluster of claim 39, wherein at least one of said light sources is of a second color different from said first color.

41. The thin panel lit cluster of claim 39, wherein a layer of fluorescent material is applied to the outer diameter of said at least one opening.

42. The thin panel lit cluster of claim 39, wherein a layer of filtering material is applied to the outer diameter of said at least one opening.

43. A method for providing general illumination to an instrument panel, said method comprising the steps of:

providing a light-carrying panel having a first side and a second side;

positioning a graphics appliqué

on said first side of said light-carrying panel;

providing at least one translucent section in said graphics appliqué

;

providing at least one opening defined in said light-carrying panel;

aligning at least one light source with said opening;

providing at least one first light-redirecting area on said first side of said light-carrying panel;

providing at least one second light-redirecting area on a second side of said light-carrying panel; and

transmitting light from said at least one light source via said light-carrying panel to at least one second light-redirecting area and redirecting said light through said at least one translucent section of said graphics appliqué

.

44. The method of claim 43, further comprising the step of optimizing the dimensions of said at least one opening according to the type of light source and type of light-redirecting material.

45. The method of claim 44, wherein the largest sides of said light-carrying panel are smooth.

46. The method of claim 45, wherein said second light-redirecting area is an area of light-reflecting material on said second side of said light-carrying panel.

47. The method of claim 45, wherein said second light-redirecting area is an area of light-absorbing material on said first side of said light-carrying panel.

48. The method of claim 45, wherein said second light-redirecting area is an area of light-transmissive scattering material on said second side of said light-carrying panel.

49. The method of claim 45, wherein said second lightredirecting area is an area of light-transmissive scattering material on said first side of said light-carrying panel.

50. A method for providing illumination to an instrument panel, said method comprising the steps of:

providing a light-carrying panel with at least one opening defined therein for light to enter, at least one area defined therein for light to exit and at least one light source substantially aligned with said entrance opening and at least a first and a second light-redirecting area defined on opposite sides of said light-carrying panel;

directing light from said light source into said entrance opening into said light-carrying panel and redirecting light out of said light-carrying panel out of said exit area.