ADJUSTABLE LIGHTING DISTRIBUTION SYSTEM

• US 20080273324A1
• Filed: 05/05/2008
• Published: 11/06/2008
• Est. Priority Date: 05/04/2007
• Status: Active Grant

• Current Assignee: ABL IP Holding LLC (Acuity Brands, Inc.)
• Original Assignee: ABL IP Holding LLC (Acuity Brands, Inc.)
• Inventors: Becker, Aaron James, Quinlan, Jeffrey Mansfield
• Granted Patent: US 7,896,521 B2
• Time in Patent Office: Days
• US Class Current: 362/237
• CPC Class Codes: F21V 14/02 by movement of light sources in vehicle head lamps F21S41/657
• CPC Class Codes: F21V 14/06 by movement of refractors in vehicle head lamps F21S41/635
• CPC Class Codes: F21V 5/007 Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane combination of two or more refractors F21V5/008
• CPC Class Codes: F21V 5/08 producing an asymmetric light distribution
• CPC Class Codes: F21Y 2103/33 annular
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A lighting assembly having a plurality of light sources and a lens matrix having a plurality of lenses. The lens matrix may be positioned relative to the light sources so that each light source resides in a first orientation within one of the lenses and emits a light distribution. Relative translation between the light sources and the lens matrix alters the orientation of the light sources within the lenses, creating a different light distribution. A light source'"'"'s orientation may change within the same lens, or the light source may translate to a different lens to alter the distribution of its emitted light.

Claims

1. A lighting assembly comprising:

a) a plurality of light sources; and

b) a lens matrix comprising a plurality of lenses, wherein the lens matrix is positioned relative to the light sources so that each light source resides in a first orientation within one of the lenses to create a first light distribution,

wherein relative translation between the light sources and lens matrix alters the orientation of the light sources within the lenses to a second orientation to create a second light distribution, wherein the second light distribution is different from the first light distribution.

2. The lighting assembly of claim 1, wherein the light sources comprise light emitting diodes.

3. The lighting assembly of claim 1, wherein the lens matrix comprises transparent material.

4. The lighting assembly of claim 1, wherein the lens matrix comprises polymeric material.

5. The lighting assembly of claim 4, wherein the lens matrix comprises polycarbonate or acrylic.

6. The lighting assembly of claim 1, wherein the lens matrix is circular.

7. The lighting assembly of claim 6, wherein relative translation comprises rotational movement between the light sources and the lens matrix.

8. The lighting assembly of claim 1, wherein the lens matrix is rectilinear.

9. The lighting assembly of claim 8, wherein relative translation comprises at least one of linear or lateral movement between the light sources and the lens matrix.

10. The lighting assembly of claim 1, wherein the lens matrix is mechanically retained relative to the light sources.

11. The lighting assembly of claim 2, wherein the light emitting diodes are mounted on a circuit board and wherein the lens matrix is mechanically retained in position on the circuit board.

12. The lighting assembly of claim 1, wherein the lenses comprise optical properties and wherein at least some of the lenses in the lens matrix comprise optical properties different from the optical properties of other of the lenses in the lens matrix.

13. A lighting assembly comprising:

a) a lens matrix comprising;

i. a first set of lenses having optical properties; and

ii. a second set of lenses having optical properties different from the optical properties of the first set of lenses; and

b) a plurality of light sources, wherein the light sources reside in the first set of lenses to create a first light distribution,

wherein upon relative translation between the light sources and lens matrix the light sources reside in the second set of lenses to create a second light distribution, wherein the second light distribution is different from the first light distribution.

14. The lighting assembly of claim 13, wherein the lenses of the first set of lenses and the second set of lenses are arranged in a triangular pattern on the lens matrix.

15. The lighting assembly of claim 13, wherein the lenses of the first set of lenses and the second set of lenses are arranged in a linear pattern on the lens matrix.

16. The lighting assembly of claim 13, wherein the light sources comprise light emitting diodes.

17. The lighting assembly of claim 13, wherein the lens matrix is circular.

18. The lighting assembly of claim 17, wherein relative translation comprises rotational movement between the light sources and the lens matrix.

19. The lighting assembly of claim 13, wherein the lens matrix is rectilinear.

20. The lighting assembly of claim 19, wherein relative translation comprises at least one of linear or lateral movement between the light sources and the lens matrix.

21. A lens matrix comprising:

a) a first set of lenses having optical properties; and

b) a second set of lenses having optical properties different from the optical properties of the first set of lenses,

wherein the lens matrix is integrally-formed and comprises a polymeric material.

22. A method of altering a light distribution of light sources comprising:

a. providing a lens matrix comprising a plurality of lenses;

b. positioning the lens matrix relative to a plurality of light sources so that each light source resides in a first orientation within one of the lenses to create a first light distribution; and

c. translating one of the light sources or lens matrix relative to the other of the light sources or lens matrix so that each light source resides in a second orientation within one of the lenses to create a second light distribution, wherein the second light distribution is different from the first light distribution.

23. A method of altering a light distribution of light sources comprising:

a) providing a lens matrix comprising;

i. a first set of lenses having optical properties; and

ii. a second set of lenses having optical properties different from the optical properties of the first set of lenses; and

b) positioning the lens matrix relative to a plurality of light sources so that the light sources reside in the first set of lenses to create a first light distribution;

c) translating one of the light sources or lens matrix relative to the other of the light sources or lens matrix so that the light sources reside in the second set of lenses to create a second light distribution, wherein the second light distribution is different from the first light distribution.