Indicator apparatus and method for a vehicle using side-emitting light-emitting diode

• US 7,245,203 B2
• Filed: 02/23/2005
• Issued: 07/17/2007
• Est. Priority Date: 04/01/2004
• Status: Active Grant

• Current Assignee: Grote Industries Incorporated
• Original Assignee: Grote Industries Incorporated
• Inventors: Stephens, Newel Lloyd, Williams, Kevin Scott
• Primary Examiner(s): Hofsass; Jeffery
• Assistant Examiner(s): LAU, HOI CHING
• Application Number:
  US11/064,395
• Publication Number:
  US 20050231334A1
• Time in Patent Office: 874 Days
• Field of Search: 340/815.45, 340/42, 340/5.5, 362/247, 362/240, 362/545, 362/498, 362/485, 362/496
• US Class Current: 340/425.5
• CPC Class Codes: B60Q 1/32 for indicating vehicle sides , e.g. clearance lights
• CPC Class Codes: B60Q 1/34 for indicating change of drive direction B60Q1/22 takes precedence

Abstract

An indicator is provided that utilizes a side-emitting light-emitting diode to indicate the state of a vehicle. An example vehicle indicator is an automobile turn indicator. Other embodiments and features further provide for a conventional light-emitting diode additionally mounted to the vehicle indicator. Certain embodiments provide a cover that protects the vehicle indicator from damage and influences the pattern and/or frequency of light emanating from the vehicle indicator. Yet other embodiments provide a circuit board for converting power from the vehicle'"'"'s power source to the particular power requirements, a timing mechanism for controlling illumination, and a heat dissipating apparatus for controlling the temperature of the side-emitting light-emitting diode. Still other embodiments provide an indicator that directs light toward the vehicle operator.

Claims

1. A vehicle indicator mountable on a generally vertical part of a vehicle, comprising:

a side-emitting first light-emitting diode that emits light predominantly in a plane, said plane being generally vertical with respect to the vehicle;

at least one first reflector next to said side-emitting first light-emitting diode and within said generally vertical plane to reflect light emanating from said side-emitting first light-emitting diode when illuminated, said at least one first reflector including a generally spherically shaped reflective portion; and

at least one second reflector located across said side-emitting first light-emitting diode from said at least one first reflector, said at least one second reflector being multifaceted and curved in a stepped-bowl shape.

2. The vehicle indicator of claim 1, wherein said at least one first reflector reflects said generally vertical plane of light into a generally horizontal photometric pattern of light away from the vehicle.

3. The vehicle indicator of claim 2, wherein said generally horizontal photometric pattern provides vehicular indication lighting with a minimum of 20 candela and a maximum of 300 candela at a distance of at least 3 meters from the vehicle indicator and at locations between at least:

(1) plus 15 degrees and minus 15 degrees, vertically; and

, (2) 90 degrees from the vehicle'"'"'s front and 5 degrees from the vehicle'"'"'s rear.

4. The vehicle indicator of claim 2, wherein said generally horizontal photometric pattern provides vehicular indication lighting with a minimum of 12 candela and a maximum of 200 candela at a distance of at least 3 meters from the vehicle indicator and at locations between at least:

(1) plus 50 degrees and minus 20 degrees, vertically; and

, (2) 5 degrees from the vehicle'"'"'s front and 5 degrees from the vehicle'"'"'s rear.

5. The vehicle indicator of claim 1 and further comprising a second light emitting diode, said second light emitting diode being illuminated generally concurrently with said first light emitting diode, wherein light from said second light emitting diode emanates in a forward direction along the side of the vehicle and into an exterior rearview-mirror of the vehicle.

6. The vehicle indicator of claim 5, wherein said light emitting diodes flash as turn signal indicators.

7. The vehicle indicator of claim 5 and further comprising at least one third reflector for reflecting light from said second light emitting diode forwardly toward the outside rear-view mirror of the vehicle.

8. The vehicle indicator of claim 7, wherein said at least one third reflector is located between said second light emitting diode and said side-emitting first light emitting diode.

9. The vehicle indicator of claim 7, wherein said at least one first reflector includes a multifaceted reflective surface for reflecting light, and wherein said at least one third reflector includes a smooth reflective surface for reflecting light forwardly toward the outside rear-view mirror of the vehicle.

10. The vehicle indicator of claim 5 and further comprising a light-transmissive cover over said light emitting diodes, wherein said cover comprises at least one lens for directing light forwardly toward the outside rear-view mirror of the vehicle.

11. The vehicle indicator of claim 10, further comprising a light-transmissive cover, wherein said cover is primarily transmissive in the yellow visible electromagnetic spectrum.

12. The vehicle indicator of claim 1, further comprising electronic circuitry, wherein said circuitry provides alternating illumination intensity levels of said side-emitting first light-emitting diode.

13. A vehicle indicator mountable on a generally vertical part of a vehicle, comprising:

a side-emitting first light-emitting diode that emits light predominantly in a plane, said plane being generally vertical with respect to the vehicle; and

means for directing light from said side-emitting first light-emitting diode when illuminated, said means for directing light including a generally spherical reflector located beside said side-emitting first light-emitting diode and a curved multifaceted reflector located across said side-emitting first light-emitting diode from said generally spherical reflector.

14. The vehicle indicator of claim 13, wherein said means for directing light is adapted to direct said generally vertical plane of light into a generally horizontal photometric pattern of light away from the Vehicle.

15. The vehicle indicator of claim 14, wherein said generally horizontal photometric pattern provides vehicular indication lighting with a minimum of 20 candela and a maximum of 300 candela at a distance of at least 3 meters from the vehicle indicator and at locations between at least:

(1) plus 15 degrees and minus 15 degrees, vertically; and

, (2) 90 degrees from the vehicle'"'"'s front and 5 degrees from the vehicle'"'"'s rear.

16. The vehicle indicator of claim 14, wherein said generally horizontal photometric pattern provides vehicular indication lighting with a minimum of 12 candela and a maximum of 200 candela at a distance of at least 3 meters from the vehicle indicator and at locations between at least:

(1) plus 50 degrees and minus 20 degrees, vertically; and

, (2) 5 degrees from the vehicle'"'"'s front and 5 degrees from the vehicle'"'"'s rear.

17. The vehicle indicator of claim 13 and further comprising a second light emitting diode, said second light emitting diode being illuminated generally concurrently with said first light emitting diode, wherein light from said second light emitting diode emanates in a forward direction along the side of the vehicle and into an exterior rearview-mirror of the vehicle.

18. The vehicle indicator of claim 17, Wherein said light emitting diodes flash as turn signal indicators.

19. The vehicle indicator of claim 17 and further comprising a means for directing light from said second light-emitting diode forwardly toward the outside rear-view mirror of the vehicle.

20. The vehicle indicator of claim 19, wherein said means for directing light from said second light-emitting diode is located between said second light emitting diode and said side-emitting first light emitting diode.

21. The vehicle indicator of claim 19 and further comprising a light-transmissive cover over said light emitting diodes, wherein said means for directing light from said second light-emitting diode comprises at least one lens on said cover for reflecting light forwardly toward the outside rear-view mirror of the vehicle.

22. The vehicle indicator of claim 19, wherein said means for directing light from said second light-emitting diode includes a reflector.

23. The vehicle indicator of claim 19, wherein said generally spherical reflector is multifaceted, and wherein said means for directing light from said second light-emitting diode includes at least one smooth reflector for reflecting light forwardly toward the outside rear-view mirror of the vehicle.

24. The vehicle indicator of claim 13, further comprising a light-transmissive cover, wherein said cover is primarily transmissive in the yellow visible electromagnetic spectrum.

25. The vehicle indicator of claim 13, further comprising electronic circuitry, wherein said circuitry provides alternating illumination intensity levels of said side-emitting first light-emitting diode.

26. A vehicle indicator mountable on a generally vertical part of a vehicle, comprising:

a first side-emitting first light-emitting diode;

a first reflector segment located beside said first light-emitting diode, said first reflector segment being generally spherical in shape; and

a second reflector segment located across said first side-emitting first light-emitting diode from said first reflector segment, said second reflector segment being curved in shape and having a central axis of the curve that is generally horizontal and oriented parallel to the forward direction of the vehicle.

27. The vehicle indicator of claim 26 and further comprising:

a second side-emitting first light-emitting diode;

a third reflector segment located beside said second light emitting diode, said third reflector segment being generally cylindrical in shape; and

a fourth reflector segment located across said second side-emitting first light-emitting diode from said third reflector segment, said fourth reflector segment being curved in shape and having a central axis of the curve that is generally horizontal and oriented parallel to the forward direction of the vehicle.

28. The vehicle indicator of claim 27 wherein said generally photometric pattern provides vehicular indication lighting with a minimum of 12 candela and a maximum of 200 candela at a distance of at least 3 meters from the vehicle indicator and at locations between at least:

(1) plus 50 degrees and minus 20 degrees, vertically; and

, (2) 5 degrees from the vehicle'"'"'s front and 5 degrees from the vehicle'"'"'s rear.

29. The vehicle indicator of claim 26 and further comprising a third light emitting diode, wherein light from said third light emitting diode emanates in a forward direction along the side of the vehicle and into an exterior rearview-mirror of the vehicle.

30. The vehicle indicator of claim 29 wherein said light emitting diodes flash as turn signal indicators.

31. The vehicle indicator of claim 29 and further comprising a forward reflector for reflecting light from said third light emitting diode forwardly toward the outside rear-view mirror of the vehicles.

32. The vehicle indicator of claim 31, wherein said first reflector includes a multifaceted reflective surface for reflecting light, and wherein said forward reflector includes a smooth reflective surface for reflecting light forwardly toward the outside rear-view mirror of the vehicle.

33. The vehicle indicator of claim 31, further comprising a light-transmissive cover, wherein said cover is primarily transmissive in the yellow visible electromagnetic spectrum.

34. The vehicle indicator of claim 31, further comprising electronic circuitry, wherein said circuitry provides alternating illumination intensity levels of said light-emitting diodes.

35. The vehicle indicator of claim 26, wherein said generally horizontal photometric pattern provides vehicular indication lighting with a minimum of 20 candela and a maximum of 300 candela at a distance of at least 3 meters from the vehicle indicator and at locations between at least:

(1) plus 15 degrees and minus 15 degrees, vertically; and

, (2) 90 degrees from the vehicle'"'"'s front and 5 degrees from the vehicle'"'"'s rear.