Rotationally symmetrical LED-based anti-collision light for aircraft
First Claim
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1. A fuselage-mounted anti-collision light comprising:
- a base platform on which a first plurality of light-emitting diodes (LEDs) are arranged, the first plurality of LEDs being arranged in a symmetrical manner about a vertical axis;
a top platform on which a second plurality of LEDs are arranged, the second plurality of LEDs being inverted with respect to the first plurality of LEDs; and
a reflector coupling the top platform and base platform, the reflector having first and second portions that redistribute light from the first and second pluralities of LEDs, respectively,wherein, during operation, the anti-collision light is mounted to the exterior of an aircraft fuselage such that the first and second pluralities of LEDs are operationally arranged in a symmetrical manner about a common vertical axis of the aircraft, andwherein the diameter of the base platform is larger than the height of the mounted anti-collision light.
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Abstract
A rotationally symmetrical anti-collision light (100, 200) for an aircraft utilizing light-emitting diodes (LEDs) is mounted to the fuselage of an aircraft. The LEDs (10, 10′, 20, 20′) may be configured in one or more concentric rings. The anti-collision light includes a reflector (30, 30′) configured to redirect the light emitted by at least one of the rings, so that the light pattern satisfies predetermined specifications.
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Citations
24 Claims
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1. A fuselage-mounted anti-collision light comprising:
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a base platform on which a first plurality of light-emitting diodes (LEDs) are arranged, the first plurality of LEDs being arranged in a symmetrical manner about a vertical axis; a top platform on which a second plurality of LEDs are arranged, the second plurality of LEDs being inverted with respect to the first plurality of LEDs; and a reflector coupling the top platform and base platform, the reflector having first and second portions that redistribute light from the first and second pluralities of LEDs, respectively, wherein, during operation, the anti-collision light is mounted to the exterior of an aircraft fuselage such that the first and second pluralities of LEDs are operationally arranged in a symmetrical manner about a common vertical axis of the aircraft, and wherein the diameter of the base platform is larger than the height of the mounted anti-collision light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A device comprising:
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a plurality of light-emitting diodes (LEDs) on a base, which are arranged in a symmetrical manner about a vertical axis, wherein the LEDs are grouped into strings, each string comprising two or more LEDs electrically connected in series; a reflector configured to redistribute light from LEDs on the base; and monitor circuitry for each string of LEDs, the monitor circuitry being configured to monitor the operating status of LEDs in each string, the monitor circuitry being operable to shut off the anti-collision light if a predetermined number of LEDs fail in any string. - View Dependent Claims (18, 19, 20)
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21. A device comprising:
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a plurality of light-emitting diodes (LEDs) on a base, which are arranged in a symmetrical manner about a vertical axis; and a reflector configured to redistribute light from LEDs on the base, wherein at least a portion of the LEDs on the base are visible LEDs, which are configured to emit light at a visible wavelength, the anti-collision light includes a plurality of infrared (IR) LEDs configured to emit light at substantially an IR wavelength, and the anti-collision light is configured to be switchable between the following operating modes;
a visible mode, and an IR mode. - View Dependent Claims (22, 23, 24)
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Specification