Directed LED Light With Reflector
A high intensity light is disclosed. A first circular lighting array having a plurality of reflectors and light emitting diodes is provided. A second circular lighting array is mounted on the first circular lighting array. The second circular lighting array has a second plurality of reflectors and light emitting diodes. Each reflector includes a tulip-shaped reflective surface having a symmetrical vertical cross section and a different symmetrical horizontal cross section. The reflective surface creates a uniform beam reflecting from a corresponding LED at horizontal angles relative to the reflective surface and a narrow beam in vertical angles relative to the reflective surface.
1 . A high intensity light comprising:
a first circular lighting array having a plurality of reflectors and light emitting diodes; and
a second circular lighting array mounted on the first circular lighting array, the second circular lighting array having a second plurality of reflectors and light emitting diodes, and wherein
each reflector includes a reflective surface having a symmetrical vertical cross section and a different symmetrical horizontal cross section to create a uniform beam reflecting from a corresponding LED at horizontal angles relative to the reflective surface and a narrow beam in vertical angles relative to the reflective surface.
2 . The high intensity light of claim 1 wherein the second plurality of reflectors and light emitting diodes are offset from the first plurality of reflectors and light emitting diodes of the first circular lighting array.
3 . The high intensity light of claim 1 wherein the reflective surface include segments generated as parabolic curves joined to form a contiguous surface.
4 . The high intensity light of claim 1 wherein each reflector and light emitting diode is an optical element, the first circular lighting array having eleven optical elements and the second circular lighting array having eleven optical elements.
5 . The high intensity light of claim 1 wherein the light emitting diode emits white light.
6 . The high intensity light of claim 1 wherein the light emitting diode emits red light.
7 . The high intensity light of claim 1 wherein the circular lighting arrays include a plurality of heat sinks arranged radially, the heat sinks including an exterior surface mounting the light emitting diodes and the reflectors and an interior surface.
8 . The high intensity light of claim 7 , wherein the heat sinks include integral fins protruding from the interior surface.
9 . The high intensity light of claim 7 , wherein the circular lighting arrays include a printed circuit board mounted on the exterior of the heat sinks for each of the light emitting diodes.
10 . The high intensity light of claim 1 , wherein each reflector is tilted at a small angle relative to a horizontal plane of the lighting arrays.
11 . The high intensity light of claim 1 , wherein each reflector includes registration features to align the reflector to the respective LED.
12 . An optical assembly for producing a uniform light beam reflected from a corresponding light source at horizontal angles and a narrow beam in vertical angles, comprising:
a support member mounted vertically having an exterior surface;
a light emitting diode mounted on the exterior surface of the support member;
a reflector mounted on the exterior surface of the support member, the reflector having a reflective surface including segments generated as parabolic curves joined to form a contiguous surface, the reflective surface further having a vertical symmetry and a different horizontal symmetry.
13 . The optical assembly of claim 12 , wherein the light emitting diode emits white light.
14 . The optical assembly of claim 12 , wherein the light emitting diode emits red light.
15 . The optical assembly of claim 12 , wherein the reflector is fabricated from molded plastic with a reflective coating.
16 . The optical assembly of claim 15 , wherein the reflective coating is vacuum deposited aluminum.
17 . The optical assembly of claim 12 further comprising a printed circuit board mounted on the exterior surface, the printed circuit board providing power to the light emitting diode.
18 . The optical assembly of claim 12 , wherein the support member include integral fins protruding from an interior surface opposite the exterior surface.
19 . The optical assembly of claim 12 , wherein the reflector is mounted at a small angle from a horizontal plane of the support member.
20 . The optical assembly of claim 12 , wherein the reflector includes registration features to align the reflector to the LED.
21 . An aircraft warning lamp comprising:
a first circular lighting array having a first plurality of optical elements emitting light at horizontal angles and a narrow beam in vertical angles;
a second circular lighting array having a second plurality of optical elements emitting light at all horizontal angles and a narrow beam in vertical angles, the second plurality of optical elements being offset from the first plurality of optical elements;
wherein each of the optical elements includes a light emitting diode and a reflector including a reflective surface having a symmetrical vertical cross section and a different symmetrical horizontal cross section to create a uniform beam reflecting from a corresponding light emitting diode at all horizontal angles relative to the reflective surface and a narrow beam in vertical angles relative to the reflective surface.
22 . The aircraft warning light of claim 21 , wherein the optical element emits white light for daytime operation and wherein the optical elements include a second optical element emitting red light for nighttime operation.
23 . The aircraft warning light of claim 21 , wherein each reflector is tilted at a small angle relative to a horizontal plane of the lighting arrays.