Lighting devices including at least one light-emitting device, systems including at least one lighting device, and related methods
In some embodiments, a lighting assembly including at least one light-emitting device positioned within a housing is disclosed, wherein the housing is designed to allow an ambient environment to pass into the housing and transfer heat from the at least one light-emitting device. The light-emitting area of the light-emitting device may be sealed from the ambient environment. In some embodiments, the housing may include at least one recess, port, or other opening configured to allow a liquid or gas to promote heat transfer from the light-emitting device. In some embodiments, a vehicle, a marine system, or other systems may include at least one lighting assembly as contemplated herein.
1. A lighting system, comprising:
a housing;
a chip-on-board light-emitting device, comprising:
a substrate;
a light-emitting area;
at least one lens element positioned adjacent to the housing;
a thermal cutoff configured to protect against overheating the chip-on-board light-emitting device;
a voltage converter configured to convert a direct current input voltage to a direct current output voltage for operating the chip-on-board light-emitting device;
a reflector element positioned between the light-emitting area and the at least one lens element;
wherein:
the chip-on-board light-emitting device is attached to the housing and is positioned within the housing;
the chip-on-board light-emitting device has a power consumption of at least about 50 watts;
the voltage converter is external to the housing;
the light-emitting area is sealed from an ambient environment.
2. The lighting system according to claim 1 , further comprising at least one ring-shaped retaining element configured to retain the at least one lens element relative to the housing.
3. The lighting system according to claim 2 , further comprising at least one sealant element positioned between the chip-on-board light-emitting device and one or more of the housing and the at least one lens element.
4. The lighting system according to claim 1 , further comprising a heat sink in thermal communication with the chip-on-board light-emitting device.
5. The lighting system according to claim 1 , further comprising:
a second housing;
a second chip-on-board light-emitting device comprising:
a second substrate;
a second light-emitting area;
a second at least one lens element positioned adjacent to the second housing;
wherein:
the second chip-on-board light-emitting device is positioned at least partially within the second housing;
the voltage converter is configured to operate the chip-on-board light-emitting device and the second chip-on-board light-emitting device;
the chip-on-board light-emitting device and the second chip-on-board light-emitting device have a power consumption of at least about 100 watts.
6. The lighting system according to claim 4 , wherein the light-emitting area is substantially planar.
7. The lighting system according to claim 5 , wherein each of the chip-on-board light-emitting device and the second chip-on-board light-emitting device is attached to the housing and the second housing, respectively, by fasteners.
8. The lighting system according to claim 7 , wherein an outer surface of each of the housing and the second housing is generally cylindrical and each of the housing and second housing comprises metal.
9. The lighting system according to claim 8 , wherein the voltage converter is configured to convert an input voltage of 10-32 volts direct current to an output voltage of 12-36 volts direct current.
10. The lighting system according to claim 9 , wherein the voltage converter has a power output of at least about 100 watts, at least about 200 watts, at least about 300 watts, at least about 400 watts, at least about 500 watts, or greater than about 500 watts.
11. A lighting assembly, comprising:
a housing comprising metal;
a chip-on-board light-emitting device, comprising:
a substrate;
a light-emitting area;
at least one lens element positioned adjacent to the housing;
a reflector element positioned between the light-emitting area and the at least one lens element;
wherein:
the chip-on-board light-emitting device is attached to the housing;
an outer surface of the housing is generally cylindrical;
the chip-on-board light-emitting device is positioned within a generally cylindrical portion of the housing;
the chip-on-board light-emitting device has a power consumption of at least about 50 watts;
the light-emitting area is sealed from an ambient environment.
12. The lighting assembly according to claim 11 , wherein the chip-on-board light-emitting device is attached to the housing by one or more fasteners.
13. The lighting assembly according to claim 12 , further comprising at least one sealant element positioned between the chip-on-board light-emitting device and one or more of the housing and the at least one lens element.
14. The lighting assembly according to claim 12 , wherein the one or more fasteners comprise one or more screws, bolts, or rivets.
15. The lighting assembly according to claim 11 , further comprising a heat sink in thermal communication with the chip-on-board light-emitting device.
16. The lighting assembly according to claim 11 , further comprising:
a second housing, the second housing comprising metal;
a second chip-on-board light-emitting device comprising:
a second substrate;
a second light-emitting area;
a second at least one lens element positioned adjacent to the second housing;
the second chip-on-board light-emitting device is attached to the second housing;
an outer surface of the second housing is generally cylindrical;
the second chip-on-board light-emitting device is positioned within a generally cylindrical portion of the second housing;
a voltage converter configured to operate the chip-on-board light-emitting device and the second chip-on-board light-emitting device;
wherein:
the chip-on-board light-emitting device and the second chip-on-board light-emitting device have a power consumption of at least about 100 watts.
17. The lighting assembly according to claim 15 , wherein the heat sink comprises aluminum, copper, silver, gold, or graphite.
18. The lighting assembly according to claim 16 ; wherein the chip-on-board light-emitting device and the second chip-on-board light-emitting device have a power consumption of at least about 200 watts, at least about 300 watts, at least about 400 watts, at least about 500 watts, or greater than about 500 watts.
19. The lighting assembly according to claim 11 , wherein the housing and the second housing comprise aluminum, brass, stainless steel, or a metal alloy.
20. The lighting assembly according to claim 16 , wherein the voltage converter comprises a step-up voltage converter configured to operate the chip-on-board light-emitting device and the second chip-on-board light-emitting device.
21. The lighting assembly according to claim 20 , wherein the step-up voltage converter has a power output of at least about 100 watts, at least about 200 watts, at least about 300 watts, at least about 400 watts, at least about 500 watts, or greater than about 500 watts; and
further comprising a thermal cutoff configured to protect against overheating the chip-on-board light-emitting device.
22. The lighting system according to claim 7 , the voltage converter is configured to convert an input voltage of 10-32 volts direct current to an output voltage of 12-36 volts direct current.
23. The lighting system according to claim 22 , wherein the housing and the second housing comprise brass, steel, or aluminum.
24. The lighting system according to claim 23 wherein:
the chip-on-board light-emitting device is configured to emit multiple colors of light; and
the lighting assembly further comprises a control circuit for controlling the multiple colors of light.
25. The lighting assembly according to claim 16 , wherein the chip-on-board light-emitting device and the second chip-on-board light-emitting device are attached to the housing and the second housing, respectively, by fasteners.
26. The lighting assembly according to claim 25 , the voltage converter is configured to convert an input voltage of 10-32 volts direct current to an output voltage of 12-36 volts direct current.
27. The lighting assembly according to claim 26 , wherein the housing and the second housing comprise brass, steel, or aluminum.
28. The lighting assembly according to claim 27 , wherein:
the chip-on-board light-emitting device is configured to emit multiple colors of light; and
the lighting assembly further comprises a control circuit for controlling the multiple colors of light.
29. The lighting system according to claim 1 , wherein the housing includes at least one port configured to allow the ambient environment to contact the substrate.
30. The lighting assembly according to claim 11 , wherein the housing includes at least one port configured to allow the ambient environment to contact the substrate.
31. A lighting assembly, comprising:
a housing comprising metal;
a chip-on-board light-emitting device, comprising:
a substrate;
a light-emitting area;
at least one lens element positioned adjacent to the housing;
a reflector element positioned between the light-emitting area and the at least one lens element;
wherein:
the chip-on-board light-emitting device is attached to the housing;
an outer surface of the housing is generally cubic;
the chip-on-board light-emitting device has a power consumption of at least about 50 watts;
the light-emitting area is sealed from an ambient environment.
32. The lighting assembly according to claim 31 , wherein the chip-on-board light-emitting device is attached to the housing by one or more fasteners.
33. The lighting assembly according to claim 32 , further comprising at least one sealant element positioned between the chip-on-board light-emitting device and one or more of the housing and the at least one lens element.
34. The lighting assembly according to claim 32 , wherein the one or more fasteners comprise one or more screws, bolts, or rivets.
35. The lighting assembly according to claim 31 , wherein the light-emitting area is configured to emit more than one color of light.
36. The lighting assembly according to claim 31 , further comprising:
a second chip-on-board light-emitting device comprising:
a second substrate;
a second light-emitting area;
a second at least one lens element positioned adjacent to the housing;
the second chip-on-board light-emitting device is attached to the housing;
a voltage converter configured to operate the chip-on-board light-emitting device and the second chip-on-board light-emitting device;
wherein:
the second chip-on-board light-emitting device is positioned at least partially within the housing;
the chip-on-board light-emitting device and the second chip-on-board light-emitting device have a power consumption of at least about 100 watts.
37. The lighting assembly according to claim 36 , wherein the chip-on-board light-emitting device and the second chip-on-board light-emitting device have a power consumption of at least 200 watts.
38. The lighting assembly according to claim 31 , wherein the housing comprises aluminum, brass, stainless steel, or a metal alloy.
39. The lighting assembly according to claim 36 , wherein the voltage converter comprises a step-up voltage converter configured to operate the chip-on-board light-emitting device and the second chip-on-board light-emitting device.
40. The lighting assembly according to claim 39 :
wherein the step-up voltage converter has a power output of at least about 100 watts, at least about 200 watts, at least about 300 watts, at least about 400 watts, at least about 500 watts, or greater than about 500 watts; and
further comprising a thermal cutoff configured to protect against overheating the chip-on-board light-emitting device.
41. The lighting assembly according to claim 33 , wherein the voltage converter is configured to convert an input voltage of 10-32 volts direct current to an output voltage of 12-36 volts direct current.
42. The lighting assembly according to claim 33 wherein the chip-on-board light-emitting device is configured to emit multiple colors of light; and
the lighting assembly further comprises a control circuit for controlling the multiple colors of light.
43. The lighting assembly according to claim 31 , wherein the housing includes at least one port configured to allow the ambient environment to contact the substrate.
44. A lighting system, comprising:
a housing comprising metal;
at least one chip-on-board light-emitting device, comprising:
a substrate;
a light-emitting area;
at least one lens element positioned adjacent to the housing;
a thermal cutoff configured to protect against overheating the at least one chip-on-board light-emitting device;
a voltage converter configured to convert a direct current input voltage to a direct current output voltage for operating the at least one chip-on-board light-emitting device;
wherein:
the at least one chip-on-board light-emitting device is attached to the housing by at least one fastener and is positioned within the housing;
the at least one chip-on-board light-emitting device has a power consumption of at least about 50 watts;
the voltage converter is external to the housing; and
the light-emitting area is sealed from an ambient environment.
45. The lighting system according to claim 44 , wherein:
the at least one fastener comprises one or more screws, bolts, or rivets;
the at least one chip-on-board light-emitting device comprises a plurality of chip-on-board light-emitting devices.
46. The lighting system according to claim 45 , further comprising a thermal cutoff configured to protect against overheating each of the plurality of chip-on-board light-emitting devices.
47. The lighting system according to claim 45 , wherein at least one of the plurality of chip-on-board light-emitting devices is configured to emit multiple colors of light.
48. The lighting system according to claim 45 , further comprising a reflector element positioned between each of the light emitting areas and the at least one lens element.
49. The lighting system according to claim 45 , wherein the plurality of chip-on-board light-emitting devices have a power consumption of at least about 200 watts.
50. The lighting system according to claim 45 , wherein:
the housing comprises aluminum, brass, stainless steel, or a metal alloy;
the at least one lens element comprises a plurality of lens elements.
51. The lighting system according to claim 47 , further comprising a control circuit for controlling the multiple colors of light.
52. The lighting system according to claim 44 , wherein the voltage converter has a power output of at least about 100 watts, at least about 200 watts, at least about 300 watts, at least about 400 watts, at least about 500 watts, or greater than about 500 watts.
53. The lighting system according to claim 45 , wherein the housing includes at least one port configured to allow the ambient environment to contact each substrate of the plurality of chip-on-board light-emitting devices.