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 reflective area and a second reflective area, wherein the first and second reflective areas of the reflector are configured to rotate relative to the LEDs about a common axis, wherein the first and second reflective areas are arranged to reflect light from a different LED on the circuit board as the reflector rotates, and wherein a maximum height dimension of the reflector is between one-third to two-thirds of the maximum distance between a pair of LEDs of the plurality of LEDs,
wherein the reflector further comprises a third reflective area that is configured to reflect light from at least the second reflective area in a direction that is generally the same direction as the light reflected by the first reflective area.
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 row, wherein the second reflective area is configured such that the reflected light is arranged in a second row which is adjacent to the first row.
4. The lighting device of claim 1 , further comprising optical elements positioned between the LEDs and the reflector.
5. The lighting device of claim 4 , wherein the optical elements include lenses.
6. The lighting device of claim 1 , wherein at least one of the first or second reflective areas is faceted.
7. The lighting device of claim 1 , wherein at least one of the reflective areas has a curved edge profile.
8. The lighting device of claim 7 , 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.
9. 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.
10. The lighting device of claim 1 , wherein the at least some of the plurality of LEDs are spaced apart and arranged in a circle.
11. The lighting device of claim 10 , 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.
12. The light device of claim 10 , 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.
13. The lighting device of claim 1 , wherein at least some of the plurality of LEDs arranged on the circuit board include multi-color LED lamp assemblies that include LED chips configured to emit light of different colors.
14. The lighting device of claim 1 , wherein at least some of the plurality of LEDs arranged on the circuit board are arranged in a circle about the common axis.
15. A lighting device comprising:
a circuit board;
a plurality of LEDs arranged on the circuit board;
a reflector including a first reflective area and a second reflective area, wherein the first and second reflective areas of the reflector are configured to rotate relative to the LEDs about a common axis, wherein the first and second reflective areas are arranged to reflect light from a different LED on the circuit board as the reflector rotates, and wherein a maximum height dimension of the reflector is between one-third to two-thirds of the maximum distance between a pair of LEDs of the plurality of LEDs,
wherein at least one of the reflective areas has a curved edge profile,
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.
16. A lighting device comprising:
a circuit board;
a plurality of LEDs arranged on the circuit board;
a reflector including a first reflective area and a second reflective area, wherein the first and second reflective areas of the reflector are configured to rotate relative to the LEDs about a common axis, wherein the first and second reflective areas are arranged to reflect light from a different LED on the circuit board as the reflector rotates, and wherein a maximum height dimension of the reflector is between one-third to two-thirds of the maximum distance between a pair of LEDs of the plurality of LEDs;
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.