Blade of light luminaire
View Patent ↗A luminaire comprising a rectangular waveguide is provided. The waveguide includes four sides and opposed planar surfaces. A light module directs light into only one of the sides at least. One of the planar surfaces includes a specular reflection surface directing light to exit through the opposed planar surface.
1. A luminaire comprising a rectangular waveguide, said waveguide including four edges and opposed planar surfaces and being configured for installation with said opposed planar surfaces oriented horizontally, a light module directing light into only one of said edges, each of said planar surfaces emitting light, wherein said light is emitted selectively in a greater amount upwardly or downwardly.
2. The luminaire of claim 1 , wherein said waveguide has a thickness of less than 50 mm between opposed planar surfaces.
3. The luminaire of claim 1 wherein said light module includes a plurality of light emitting diodes (LEDs).
4. The luminaire of claim 1 wherein said rectangle is a square.
5. The luminaire of claim 1 wherein light is emitted substantially from only one planar surface.
6. The luminaire of claim 2 wherein the ratio of surface area of one planar surface to waveguide thickness is at least 5,000:1.
7. The luminaire of claim 1 including a mounting structure associated with the edge including said light module.
8. The luminaire of claim 7 wherein an edge opposed to said edge including said mounting structure is free floating in a mounted condition.
9. The luminaire of claim 7 wherein said mounting structure and said light module comprise an integral body.
10. The luminaire of claim 1 wherein light exits said planar surface diffusely.
11. The luminaire of claim 1 wherein at least one edge includes a reflector.
12. The luminaire of claim 4 wherein a first planar surface emits more light than the opposed planar surface.
13. A method for illuminating an area comprising providing a plurality of luminaire, each luminaire comprising a rectangular waveguide including four edges and opposed planar surfaces, each waveguide including a light module directing light into only one of the edges, each waveguide having total internal reflectance which distributes said light throughout the waveguide and a selected emission of light from one or both of said planar surfaces, and arranging at least a first of said luminaires in a vertical orientation and a second of said luminaires in a horizontal orientation.
14. The method of claim 13 wherein said first luminaire is mounted to a ceiling and said second luminaire is mounted to a wall.
15. The method of claim 13 wherein each luminaire has substantially the same length, width and thickness.
16. A luminaire comprising a rectangular waveguide, said waveguide including four edges and opposed planar surfaces, a light module directing light into only one of said edges, wherein light is directed to exit said waveguide from at least one planar surface within a cone angle of less than about 45°.
17. A luminaire comprising a rectangular waveguide, said waveguide including four edges and opposed planar surfaces, a light module directing light into only one of said edges, at least one of said planar surfaces emitting light, wherein said light is emitted selectively in a greater amount upwardly or downwardly and wherein light is emitted from at least one of said edges.
18. The method of claim 13 including a plurality of vertical luminaires and a plurality of horizontal luminaires.
19. The method of claim 16 wherein light is directed to exit said waveguide from each opposed planar surface within a cone angle of less than about 45°.
20. The luminaire of claim 1 wherein said light is emitted in a greater amount downwardly.