Rotating light
View Patent ↗The present disclosure provides a lighting device that includes an array of LEDs arranged on a circuit board with a reflector that rotates relative to the LEDs to reflect the light in various directions. The reflector according to the present disclosure includes a compact construction that allows for effective light reflection. A related lighting system and method is also provided.
1. A lighting device comprising:
a circuit board;
a plurality of LEDs arranged on the circuit board;
a reflector including a first member including a first reflective area and a second member including a second reflective area, each of the first and second members having upper and lower edges,
wherein the reflector is configured to rotate relative to the LEDs,
wherein the first and second reflective members are arranged to reflect light from a different LED on the circuit board as the reflector rotates, and
wherein the lower edge of the first member of the reflector is positioned closer to the circuit board than the upper edge of the second member of the reflector, and the lower edge of the second member of the reflector is positioned closer to the circuit board than the upper edge of the first member of the reflector.
2. The lighting device of claim 1 , wherein the reflector is configured so that the first and second reflective areas reflect light in the same general direction.
3. The lighting device of claim 1 , wherein the first reflective area is configured such that the reflected light is arranged in a first horizontal row, wherein the second reflective area is configured such that the reflected light is arranged in a second horizontal row which is adjacent to the first row.
4. The lighting device of claim 1 , wherein the second member of the reflector further comprises a third reflective area that is offset from the second reflective area, wherein light from the second reflective member is directed in a direction that is generally the same direction as the light reflected by the first reflective member.
5. The lighting device of claim 4 , wherein at least one of the second and third reflective areas of the second member of the reflector is oriented perpendicular to the circuit board.
6. The lighting device of claim 4 , wherein the second and third reflective areas of the second member of the reflector are oriented at different angles relative to the circuit board and neither is perpendicular to the circuit board.
7. The lighting device of claim 1 , further comprising optical elements positioned between the LEDs and the reflector.
8. The lighting device of claim 7 , wherein the optical elements include lenses.
9. The lighting device of claim 1 , wherein at least one of the first or second reflective areas is faceted.
10. The lighting device of claim 1 , wherein at least one of the reflective areas has a curved edge profile.
11. The lighting device of claim 10 , wherein at least one of the first or second reflective areas includes a portion that is generally concave, and at least one of the first or second reflective areas includes a portion that is generally convex.
12. The lighting device of claim 1 , further comprising an electric motor positioned between the circuit board and the reflector, wherein the motor is configured to drive the rotation of the reflector relative to the LEDs.
13. The lighting device of claim 1 , wherein the at least some of the plurality of LEDs are spaced apart and arranged in a circle.
14. The lighting device of claim 13 , wherein the reflector is arranged relative to the LEDs such that an axis of rotation of the reflector is positioned in a center portion of the circle.
15. The light device of claim 13 , wherein both of the first and second reflective areas have a curved edge profile that is correlated to the inner and outer radiuses of the circle of LEDs.
16. A rotary light system comprising:
a plurality of LEDs;
a reflector configured to reflect light emitted from the LEDs, wherein the reflector includes at least two unaligned spaced apart reflective areas;
a motor for rotating the reflector relative to the LEDs; and
a control unit for controlling the LEDs and motor functions, wherein the control unit is configured to adjust the rotational speed of the reflector based on the speed of a vehicle upon which the rotary light is attached.
17. The rotary light system of claim 16 , wherein the controller is configured to synchronize the rotation of the reflector with the LEDs such that at least one LED is turned off based on the position of the at least one LED relative to the reflective areas.
18. The rotary light system of claim 16 , wherein the controller is configured to stop the rotation of the reflector and position the reflector to direct light in a fixed direction.
19. The rotary light system of claim 16 , wherein the reflector is configured so that the light reflected by the reflective surfaces is directed in the same general direction.
20. A rotary light system comprising:
a plurality of LEDs;
a reflector configured to reflect light emitted from the LEDs, wherein the reflector includes at least two unaligned spaced apart reflective areas;
a motor for rotating the reflector relative to the LEDs; and
a control unit for controlling the LEDs and motor functions, wherein the control unit is configured to synchronize the rotation of the reflector with the LEDs such that at least one LED is turned off based on the position of the at least one LED relative to the reflective areas.