Multi-colored vehicle rear lamp

Patent metadata

Field	Value
Publication number	US-2017191635-A1
Application number	US-201715461700-A
Country	US
Kind code	A1
Filing date	Mar 17, 2017
Priority date	Mar 12, 2013
Publication date	Jul 6, 2017
Grant date	—

Abstract

A lamp for the rear of a vehicle is disclosed with a light transmissive cover having a red first illuminated surface area and a clear second illuminated surface area. It has a first LED light emitter located directly beneath the red first area, a second LED light emitter located directly beneath the clear second area, and a third LED light emitter, also located directly beneath said clear second area. The third red LED light emitter is for emitting red light through the clear second area simultaneously with light transmitted through the red first area, whereby the first and second areas are adapted to collectively form a contiguous red illuminated surface area.

First claim

1 - 20 . (canceled)

21 . A method of using a lamp for the rear of a vehicle in at least a brake mode and a reverse mode, comprising:
emitting light from a first light emitter of said lamp, said first light emitter emitting light from a first illuminated surface area of a light transmissive cover of said lamp, said first illuminated surface area being red in color; emitting light from a second light emitter of said lamp, said second light emitter separate from said first light emitter, said second light emitting white light from a second illuminated surface area of said light transmissive cover, said second illuminated surface area being clear in color; emitting light from a third light emitter of said lamp, said third light emitter separate from said first and said second light emitters, said third light emitter emitting red light through said clear second area; wherein said first and third light emitters of said lamp emit light at a first intensity when said vehicle is in said brake mode, and at a second intensity when not in said brake mode, said first intensity being higher than said second intensity; and
wherein said second light emitter of said lamp emits light in said reverse mode.

22 . The method of claim 21 , wherein said third light emitter is deactivated in said reverse mode.

23 . The method of claim 21 , wherein said first and third emitters are deactivated when not in said brake mode.

24 . The method of claim 21 , wherein said first and third emitters activate and deactivate independent of said second light emitter.

25 . The method of claim 21 , wherein:
said first light emitter is powered by a first power source P 1 during at least said tail lamp mode; said second light emitter is powered by a second power source P 2 during said reverse mode; and said third light emitter is powered by a third power source P 3 during at least said brake mode.

26 . The method of claim 25 , wherein said power source P 1 is provided by a first power conductor mounted in a housing, and wherein said second power source P 2 is provided by a separate second power conductor mounted in said housing.

27 . The method of claim 25 , wherein power sources P 1 and P 3 supply a first power level in said brake mode, and a second power level when not in said brake mode, said first power level being higher than said second power level.

28 . The method of claim 25 , wherein power sources P 1 and P 3 supply power to said first and third light emitters when in said brake mode, and wherein said power source P 3 ceases supplying power to said third light emitter when not in said brake mode.

29 . The method of claim 21 , wherein said first light emitter comprises a plurality of LEDs, and wherein said plurality of LEDs surround said second light emitter and said third light emitter.

30 . The method of claim 21 , wherein said lamp is free of a reflector.

31 . The method of claim 21 , wherein said lamp defines multiple separate internal compartments.

32 . The method of claim 21 wherein there is no parabolic reflector and no barrier wall between said first light emitter and said third light emitter.

33 . The method of claim 21 , wherein said lamp defines a single internal compartment.

34 . The method of claim 21 , wherein said lamp includes one or more barrier walls positioned between any of said first, second, and third light emitters.

35 . The method of claim 21 , wherein said first light emitter of said lamp emits red light.

36 . The method of claim 21 , wherein said first light emitter of said lamp emits white light.

37 . The method of claim 21 , wherein said second clear area of said cover of said lamp is completely surrounded by said first red area of said cover.

38 . The method of claim 21 , wherein said light transmissive cover has in brake mode an illuminated surface area at least 75 square centimeters and less than 100 square centimeters.

39 . The method of claim 21 , wherein said light transmissive cover is circular and about 4 to 4½ inches in diameter.

40 . The method of claim 21 , wherein said light transmissive cover is oval and about 2½ inches tall and about 6¾ inches wide.

41 . The method of claim 21 , wherein said light transmissive cover has in brake mode an illuminated surface areas that is at least 5000 square millimeters.

42 . The method of claim 21 , wherein said lamp is shaped from a group consisting of: (a) a circle with a diameter of about 10 centimeters; and, (b) an oval.

43 . The method of claim 21 , wherein said first light emitter is located directly beneath said first illuminated surface area.

44 . The method of claim 21 , wherein said second light emitter is located directly beneath said second illuminated surface area.

45 . The method of claim 21 , wherein the first light emitter is activated upon activation of head lamps of said vehicle.

Assignees

• Grote Industries Inc

Inventors

• Norris Brian K
• Staggs Randall
• Anand Nakul
• Smith Shawn S
• Riley Christopher C
• Noe Mark D

Classifications

• F21S43/14

  Light emitting diodes [LED] · CPC title

• F21S43/20

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

• B60Q1/2607

  comprising at least two indicating lamps · CPC title

• F21S43/255 Primary

  Filters · CPC title

• B60Q1/34

  for indicating change of drive direction (B60Q1/22 takes precedence) · CPC title