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US 2011/0211349 A1Published application
Rotating light
AssigneeFederal Signal Corporation
InventorsRobert A. Czajkowski, Myron F. Pavlacka, Jecek J. Jozwik, Charles P. Meyer
Life of this patent
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Abstract
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.
Claims21
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.
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 spaced apart unaligned reflective areas;
- a motor for rotating the reflector relative to the LEDs about a central axis;
- and
- a control unit for controlling the LEDs and motor functions.
2 more elements
19-20. (canceled)
Dependencies are inferred from the claim text.