Lighting assembly

• US 20040145910A1
• Filed: 01/29/2003
• Published: 07/29/2004
• Est. Priority Date: 01/29/2003
• Status: Abandoned Application

• Current Assignee: Guide Corporation (Vehicle Lighting Incorporated)
• Original Assignee: Guide Corporation (Vehicle Lighting Incorporated)
• Inventors: Lisowski, Michael F.
• Application Number:
  US10/353,273
• Publication Number:
  US 20040145910A1
• Time in Patent Office: Days
• US Class Current: 362/519
• CPC Class Codes: F21S 41/147 the main emission direction of the LED being angled to the optical axis of the illuminating device
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A lighting assembly comprising a housing having at least one aperture formed therein and a reflector secured to the housing. The reflector comprises at least one reflector cup having a front curved surface. The lighting assembly further comprises at least one light source, such as an LED, positioned in the at least one aperture and secured to the housing. The at least one light source is positioned to emit light toward the at least one reflector cup and the light may then be focused into a collimated beam. A plurality of light sources may be circumferentially spaced around the outer edge of the reflector.

Claims

1. A lighting assembly comprising:

a housing having a plurality of apertures;

a reflector having an outer circumference secured to said housing, said reflector comprising a plurality of reflector cups, each of said reflector cups having a front curved surface; and

a plurality of light sources positioned in said plurality of apertures and secured to said housing, said plurality of light sources positioned to emit light toward said plurality of reflector cups.

2. The lighting assembly of claim 1 wherein said light emitted from said at least one light source is reflected from said plurality of reflector cups and focused into a collimated beam.

3. The lighting assembly of claim 1 wherein said front curved surface of said at least one reflector cup has a parabolic shape.

4. The lighting assembly of claim 1 wherein the housing comprises a frustro-conical wall.

5. The lighting assembly of claim 4 wherein said housing further comprises a cylindrical crown attached to the frustro-conical wall.

6. The lighting assembly of claim 1 wherein a central cavity is located at the center of the reflector.

7. The lighting assembly of claim 1 further comprising a plurality of light source housings secured to said plurality of light sources.

8. The lighting assembly of claim 1 wherein said plurality of light sources comprise a plurality of LEDs.

9. The lighting assembly of claim 1 further comprising a center axis that is substantially parallel to a desired direction of light distribution from the lighting assembly.

10. The lighting assembly of claim 9 wherein said at least one light source is tilted upon a light source axis at an angle relative to a reference axis that is perpendicular to the center axis.

11. The lighting assembly of claim 10 wherein said angle is less than 50 degrees.

12. The lighting assembly of claim 10 wherein said angle is between 5 and 30 degrees.

13. The lighting assembly of claim 10 wherein said angle is 25 degrees.

14. The lighting assembly of claim 1 wherein said plurality of reflector cups are integrally formed as one part.

15. The lighting assembly of claim 1 wherein said reflector is substantially circular in shape.

16. A lighting assembly comprising

a. an assembly housing having a frustro-conical wall;

b. a plurality of light sources positioned around the frustro-conical wall;

c. a reflector having a plurality of facets attached to the frustro-conical wall, each of the plurality of facets including a front curved surface that extends from below one of the plurality of light sources to above one of the plurality of light sources.

17. The lighting assembly of claim 16 wherein the assembly housing further comprises a crown adjacent to the frustro-conical wall.

18. The lighting assembly of claim 16 wherein the assembly housing further comprises an exterior surface, an interior surface and a plurality of apertures extending between the interior surface and the exterior surface.

19. The lighting assembly of claim 18 wherein each of the plurality of light sources is joined to a light source housing attached to the assembly housing at one of the plurality of apertures such that each of the plurality of light sources extends through the aperture.

20. An automotive lighting assembly for creating a collimated beam of light, the automotive lighting assembly comprising:

a. an assembly housing having a frustro-conical wall and a cylindrical crown extending from the frustro-conical wall, the assembly housing forming an interior surface and an exterior surface and the cylindrical crown forming a mouth on the automotive lighting assembly;

b. a reflector joined to the frustro-conical wall, the reflector including a reflective surface facing the interior surface of the assembly housing;

c. a plurality of apertures positioned around the frustro-conical wall, each of the plurality of apertures facing the reflector;

d. a plurality of LEDs positioned in the plurality of apertures such that light emitted from the LEDs will strike the reflective surface of the reflector and exit the automotive lighting assembly through the mouth.