Very low profile anti collision light

Patent metadata

Field	Value
Publication number	US-9776735-B2
Application number	US-201514711128-A
Country	US
Kind code	B2
Filing date	May 13, 2015
Priority date	May 13, 2015
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A light configured to be coupled to a surface, where the light includes a light source configured to emit light in three dimensions and a lens configured to direct a majority of the light emitted by the light source outwardly from the light source in directions along the surface. The light may be an anti collision light for an aircraft.

First claim

The invention claimed is:

1. A lighting system configured to be coupled to a surface, the lighting system comprising:
a light source configured to emit light in three dimensions; and
a lens comprising:
a first surface having a first plane;
a second surface opposite the first surface and having a second plane; and
a third surface having a third plane at a level interposed between a level of the first plane of the first surface and a level of the second plane of the second surface, wherein:
the lens is configured to direct a majority of the light emitted by the light source outwardly from the light source in directions along the surface;
the third surface defines at least a portion of a recess in the lens, wherein the light source is positioned within the recess; and
the first plane, the second plane, and the third plane are substantially parallel with each other.

2. The lighting system according to claim 1 , wherein the directions the majority of the light is directed along the surface comprise all the directions along the surface.

3. The lighting system according to claim 1 , wherein:
the lens defines an area on the surface;
the light source is positioned within the area; and
the directions comprise directions radially outward from the light source along the surface.

4. The lighting system of claim 1 , wherein the lens comprises an edge having a height, and the height of the edge is equal to 7.0 times a width of one LED, or less.

5. The lighting system of claim 1 , wherein the lighting system is configured to protrude from the surface by a distance equal to 7.0 times a width of one LED, or less.

6. The lighting system of claim 1 , wherein the light source comprises a plurality of light emitting diodes (LEDs).

7. The lighting system of claim 1 , wherein the light source comprises a plurality of light emitting diodes (LEDs) and the lighting system further comprises a continuous polymer carrier that physically connects the plurality of LEDs into a light strip.

8. The lighting system according to claim 1 , further comprising an anti collision light for an aircraft, comprising:
the light source comprises a plurality of light emitting diodes (LEDs), wherein each LED of the plurality of LEDs comprises a light emitting surface configured to emit light and a width across the front surface; and
the first surface of the lens is configured to cover the plurality of LEDs and an exterior surface of the aircraft; and
the lens further comprises an edge having a height that extends between, and intersects, the first surface and the second surface, wherein the lens is configured to focus the majority of the light emitted from the plurality of LEDs outward through the edge.

9. The lighting system of claim 8 , further comprising a base, the base comprising a mounting surface, wherein the plurality of LEDs are positioned between the mounting surface and the lens.

10. The lighting system of claim 9 , further comprising:
a continuous polymer carrier that physically connects the LEDs into a light strip; and
a circuit substrate electrically coupled to the light strip,
wherein the circuit substrate is positioned on a surface of the base within a periphery established by the light strip.

11. The lighting system of claim 10 , wherein the base further comprises a post configured to extend through an opening in an exterior surface of an aircraft.

12. The lighting system of claim 11 , wherein:
the post further comprises a channel therethrough;
the circuit substrate comprises an electrical interconnect electrically coupled with the circuit substrate; and
the electrical interconnect extends through the channel in the post.

13. The lighting system of claim 12 , further comprising at least one fastener that attaches the lens to the base, and extends through a first opening through the lens and a second opening through the base.

14. The lighting system of claim 13 , wherein the at least one fastener is configured to attach the lens and the base to an aircraft surface, and extend through a third opening through the aircraft surface.

15. The lighting system of claim 1 , wherein the lens further comprises an edge that intersects the first surface and the second surface, and the edge intersects the first surface of the lens at an angle of 90°.

16. The lighting system of claim 1 , wherein the lens further comprises an edge that intersects the first surface and the second surface, and the edge intersects the first surface of the lens at an angle of from 30° to 60°.

17. An aircraft comprising an anti collision lighting system, the anti collision lighting system comprising at least one anti collision light, comprising:
a light source configured to emit light in three dimensions;
a lens configured to direct a majority of the light emitted by the light source outwardly from the light source in directions along a surface of the aircraft, the lens comprising:
an upper surface;
a lower surface;
an edge that extends between, and intersects, the upper surface and the lower surface; and
an intermediate surface at a level between the lower surface and the upper surface, the intermediate surface defining at least a portion of a recess; and

a pedestal, comprising:
a mounting surface wherein the light source is mounted to the mounting surface, and the mounting surface is positioned adjacent the recess;
a flange that intersects a sidewall of the mounting surface; and

wherein the anti collision light is attached to the surface of the aircraft.

18. The aircraft of claim 17 , wherein:
the anti collision light is configured to protrude from the surface of the aircraft by a distance of 0.5 inches or less.

19. The aircraft of claim 17 , wherein:
the anti collision light is configured to protrude from the surface of the aircraft by a distance of 0.185 inches or less.

20. The aircraft of claim 17 , further comprising at least one fastener that attaches the lens to the pedestal and to the aircraft surface, and extends through a first opening through the lens, a second opening through the flange, and a third opening in the aircraft surface.

21. A method of directing light from a lighting system, comprising:
mounting a light source to a mounting surface of a pedestal, wherein the light source comprises a front surface configured to emit light and a width across the front surface;
attaching a lens to the pedestal, wherein the lens comprises:
a lower surface;
an upper surface opposite the lower surface; and
an edge having a height that extends between, and intersects, the lower surface and the upper surface, wherein the height of the edge is equal to 7.0 times the width across the front surface of the light source, or less;

directing the light source to emit light in three dimensions; and
redirecting a majority of the light emitted by the light source outwardly from the light source through lens in directions along a surface to which the light source is attached.

22. The method of claim 21 , wherein:
the light source comprises a plurality of light emitting diodes (LEDs);
the front surface is a front surface of one of the LEDs;
the lower surface of the lens is configured to overlie the plurality of LEDs;
the method further comprises encasing the plurality of LEDs within the lens, wherein the lighting system is configured to emit the light from the plurality of LEDs, through the lens, and out of the edge of the lens.

23. The method of claim 22 , further co

Assignees

• Boeing Co

Inventors

• Williams Timothy L

Classifications

• F21S4/22

  flexible or deformable, e.g. into a curved shape · CPC title

• B64D47/04

  the lighting devices being primarily intended to illuminate the way ahead · CPC title

• B64D47/02

  Arrangements or adaptations of signal or lighting devices · CPC title

• B64D47/06 Primary

  for indicating aircraft presence · CPC title

• F21V5/046

  the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring · CPC title