Systems and methods for anti-collision lights

Patent metadata

Field	Value
Publication number	US-9279562-B2
Application number	US-201414218798-A
Country	US
Kind code	B2
Filing date	Mar 18, 2014
Priority date	Mar 18, 2014
Publication date	Mar 8, 2016
Grant date	Mar 8, 2016

Abstract

Systems and methods are disclosed herein for anti-collision lights. An anti-collision light (“ACL”) may include a light source, a primary reflector, and a secondary reflector. The primary reflector may have a concave side facing the light source and the secondary reflector. The secondary reflector may include a reflective cone and a reflective base. The ACL may be configured to efficiently distribute light from the light source according to Federal Aviation Administration ACL requirements.

First claim

The invention claimed is:

1. An anti-collision light (“ACL”) comprising:
a light source;
a primary reflector comprising a concave side facing the light source, wherein the primary reflector comprises an exterior reflective ring, an interior reflective ring, a central reflector, and a lens; and
a secondary reflector comprising a reflective cone and a reflective base, wherein the concave side of the primary reflector faces the secondary reflector.

2. The ACL of claim 1 , wherein the light source is positioned at a focus of the primary reflector.

3. The ACL of claim 1 , wherein the light source outputs less than 1500 effective lumens in total.

4. The ACL of claim 3 , wherein the ACL outputs at least 400 candela from 0 degrees to 5 degrees relative to a horizontal plane, at least 240 candela from 5 degrees to 10 degrees relative to the horizontal plane, at least 80 candela from 10 degrees to 20 degrees relative to the horizontal plane, at least 40 candela from 20 degrees to 30 degrees relative to the horizontal plane, and at least 20 candela from 30 degrees to 75 degrees relative to the horizontal plane.

5. A light system comprising:
a light source;
a dish-shaped primary reflector configured to collect light from the light source; and
a secondary reflector comprising a reflective cone;
wherein the primary reflector is configured to reflect the light from the light source toward the secondary reflector;
wherein the secondary reflector is configured to reflect the light such that the light system outputs at least 400 effective candles (Ecd) from 0 degrees to 5 degrees relative to a horizontal plane, at least 240 candela from 5 degrees to 10 degrees relative to the horizontal plane, at least 80 candela from 10 degrees to 20 degrees relative to the horizontal plane, at least 40 candela from 20 degrees to 30 degrees relative to the horizontal plane, and at least 20 candela from 30 degrees to 75 degrees relative to the horizontal plane.

6. The light system of claim 5 , wherein the primary reflector comprises a central reflector, wherein the central reflector is configured to reflect light rays from the light source to a reflective base of the secondary reflector, and wherein the reflective base is configured to reflect the light rays primarily between 0 degrees and 30 degrees relative to the horizontal plane.

7. The light system of claim 5 , wherein the primary reflector comprises an interior reflective ring, wherein the interior reflective ring is configured to reflect light rays from the light source to an upper portion of the reflective cone, and wherein the upper portion of the reflective cone is configured to reflect light rays primarily between 0 degrees and 10 degrees relative to the horizontal plane.

8. The light system of claim 5 , wherein the light source outputs less than 1500 effective lumens in total.

9. The light system of claim 5 , wherein the primary reflector comprises a lens, and wherein the lens is configured to refract light rays from the light source.

10. The light system of claim 5 , wherein the light source is configured to emit light rays between 0 degrees and 30 degrees relative to the horizontal plane which do not interact with the primary reflector or the secondary reflector.

11. An anti-collision light (“ACL”) comprising:
a light source;
a primary reflector comprising a concave side facing the light source, wherein the primary reflector comprises a central reflector; and
a secondary reflector comprising a reflective cone and a reflective base, wherein the concave side of the primary reflector faces the secondary reflector, and wherein the central reflector and the reflective base form a combined angle of 0 degrees to 30 degrees.

12. An anti-collision light (“ACL”) comprising:
a light source;
a primary reflector comprising a concave side facing the light source, wherein the primary reflector comprises an interior reflector ring; and
a secondary reflector comprising a reflective cone and a reflective base, wherein the concave side of the primary reflector faces the secondary reflector, and wherein the interior reflective ring and upper portion of the reflective cone form a combined angle of 0 degrees to 10 degrees.

13. An anti-collision light (“ACL”) comprising:
a light source;
a primary reflector comprising a concave side facing the light source, wherein the primary reflector comprises an interior reflective ring; and
a secondary reflector comprising a reflective cone and a reflective base, wherein the concave side of the primary reflector faces the secondary reflector, and wherein the exterior reflective ring and a lower portion of the reflective cone form a combined angle of 0 degrees to 10 degrees.

Assignees

• Goodrich Corp

Inventors

• Lapujade Philippe

Classifications

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V7/0033 Primary

  with successive reflections from one reflector to the next or following · CPC title

• B64D47/06 Primary

  for indicating aircraft presence · CPC title

• F21V7/041

  with conical or pyramidal surface · CPC title

• F21W2107/30

  for aircraft · CPC title