Recessed luminaire

• US 9,927,079 B2
• Filed: 04/19/2013
• Issued: 03/27/2018
• Est. Priority Date: 09/11/2012
• Status: Active Grant

• Current Assignee: ABL IP Holding LLC (Acuity Brands, Inc.)
• Original Assignee: ABL IP Holding LLC (Acuity Brands, Inc.)
• Inventors: Gould, Carl, Nelson, Peter K., Sorensen, Chris, Slaughter, Chris, Leadford, Kevin F.
• Primary Examiner(s): Gyllstrom, Bryon T
• Assistant Examiner(s): Endo, James
• Application Number:
  US13/866,971
• Publication Number:
  US 20140070724A1
• Time in Patent Office: 1,803 Days
• Field of Search: 362235, 362240, 362246, 362243, 362245, 36224901, 362236, 362242, 36231102, 362247, 362806, 362145, 362147, 362223, 36221704, 36224902, 36224916, 362355, 315291, 315245
• CPC Class Codes: F21K 9/62 using mixing chambers, e.g. housings with reflective walls
• CPC Class Codes: F21S 6/008 with a combination of direct and indirect lighting
• CPC Class Codes: F21S 8/024 intended to be recessed in a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21V 21/025 Elongated bases having a U-shaped cross section
• CPC Class Codes: F21V 21/04 Recessed bases
• CPC Class Codes: F21V 23/009 the casing being inside the housing of the lighting device
• CPC Class Codes: F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• CPC Class Codes: F21V 5/08 producing an asymmetric light distribution
• CPC Class Codes: F21V 7/0016 on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F21Y 2115/15 Organic light-emitting diodes [OLED]
• CPC Class Codes: H05B 47/165 following a pre-assigned programmed sequence; Logic control [LC]

Abstract

Embodiments of the invention are directed to wall recessed two-component luminaires. The two components can include a primary optical subsystem and a secondary optical subsystem. The primary optical subsystem can provide indirect lighting, illuminate an architectural space upward toward a ceiling, and/or have greater luminous flux than the secondary optical subsystem. The secondary optical subsystem can provide direct lighting, illuminate an architectural space horizontally and/or downward, provide lit appearance, provide direct view color and/or color gradients, provide direct view luminance and/or luminous gradients, and/or provide lighting for ambience.

Claims

1. A luminaire for illuminating an architectural space, the luminaire comprising:

a housing comprising a plurality of housing walls, wherein a first housing wall comprises a front face facing the architectural space and an aperture extending through the first housing wall and defined by aperture edges;

a primary optical subsystem disposed within the housing such that it is not positioned between the aperture edges when viewed through the aperture perpendicularly to the front face, the primary optical subsystem producing a primary photometric distribution;

at least one secondary optical subsystem disposed within the housing, the at least one secondary optical subsystem producing a secondary photometric distribution different from the primary photometric distribution; and

a diffuser positioned between the aperture edges when viewed through the aperture perpendicularly to the front face and such that at least a portion of the diffuser is visible within the housing when viewed through the aperture perpendicularly to the front face,

wherein the diffuser extends from the first housing wall and comprises a portion that curves away from the first housing wall toward an interior of the housing,

wherein the diffuser is positioned within the housing to extend toward a second housing wall such that a majority of at least one of the primary optical subsystem and the at least one secondary optical subsystem is disposed between (i) a projected intersection between the diffuser and the second housing wall and (ii) the first housing wall,

wherein a majority of light in the primary photometric distribution does not pass through the diffuser and a majority of light in the secondary photometric distribution does pass through the diffuser.

2. The luminaire of claim 1, wherein:

the primary optical subsystem is disposed within the housing proximate the second housing wall;

the primary photometric distribution has a centerline directed through the aperture at an angle to the first housing wall; and

a majority of light in the primary photometric distribution is directed through the aperture at an angle to the first housing wall such that the luminaire is configured to illuminate a surface in the architectural space that is nonparallel with the front face of the housing.

3. The luminaire of claim 1, wherein the secondary photometric distribution is distributed across the entire aperture.

4. The luminaire of claim 1, wherein:

the diffuser and the aperture each have an area; and

the area of the diffuser is greater than the area of the aperture.

5. The luminaire of claim 1, wherein the diffuser comprises a convex portion facing the interior of the housing.

6. The luminaire of claim 1, wherein the diffuser comprises a first diffuser edge and an opposing second diffuser edge, wherein the diffuser extends from the first housing wall toward the second housing wall that is non-parallel to the first housing wall, and wherein the first diffuser edge and the second diffuser edge are disposed within the housing on opposing sides of the aperture.

7. The luminaire of claim 1, wherein a majority of the primary optical subsystem is disposed between (i) the projected intersection between the diffuser and the second housing wall and (ii) the first housing wall.

8. The luminaire of claim 7, wherein the at least one secondary optical subsystem is located within the housing adjacent to the second housing wall such that a majority of the at least one secondary optical subsystem is disposed on a side of the projected intersection between the diffuser and the second housing wall opposite the primary optical subsystem.

9. The luminaire of claim 1, wherein the primary and at least one secondary optical subsystems are independently controlled.

10. The luminaire of claim 1, wherein the primary optical subsystem emits substantially white light.

11. The luminaire of claim 1, wherein the at least one secondary optical subsystem emits colored light.

12. The luminaire of claim 11, wherein the at least one secondary optical subsystem comprises red, green, and blue light sources and a net color of the emitted colored light is adjustable.

13. The luminaire of claim 1, wherein the at least one secondary optical subsystem comprises a first secondary optical subsystem and a second secondary optical subsystem.

14. The luminaire of claim 13, wherein the first secondary optical subsystem is disposed adjacent to the second housing wall and the second secondary optical subsystem is disposed adjacent to a third housing wall opposite the second housing wall.

15. The luminaire of claim 13, wherein the first and second secondary optical subsystems are independently controllable to vary at least one of a quantity or a color of light emitted from each of the first and second secondary optical subsystems.

16. The luminaire of claim 13, wherein the first and second secondary optical subsystems create a light gradient seen through the aperture.

17. The luminaire of claim 16, wherein the light gradient seen through the aperture is configured with light of a first color in a first portion of the luminaire seen through the aperture and with light of a second color in a second portion of the luminaire seen through the aperture.

18. The luminaire of claim 16, wherein the light gradient is configured to vary at least one of brightness, hue, and saturation.

19. The luminaire of claim 1, further comprising side surfaces that extend rearwardly into the housing from the aperture edges.

20. The luminaire of claim 19, wherein the side surfaces are substantially perpendicular to the first housing wall.

21. The luminaire of claim 1, further comprising side surfaces that extend rearwardly into the housing from the aperture edges, wherein the diffuser is disposed within the housing adjacent to a rear portion of the side surfaces.

22. The luminaire of claim 1, wherein:

the luminaire is mounted in a vertical wall;

the aperture edges comprise a top aperture edge, a bottom aperture edge opposite of the top aperture edge, and two opposing side aperture edges;

the front face is approximately flush with the vertical wall; and

the primary optical subsystem is disposed within the housing below the bottom aperture edge.

23. The luminaire of claim 1, wherein:

the primary optical subsystem is disposed adjacent to an intersection of the first housing wall with the second housing wall; and

an internal surface of the first housing wall and an internal surface of the second housing wall form an approximately 90°

angle with one another.

24. The luminaire of claim 1, wherein a first area illuminated by the primary photometric distribution overlaps with a second area illuminated by the secondary photometric distribution.

25. The luminaire of claim 1, wherein:

the luminaire is positioned on a vertical wall;

the aperture comprises a center;

the aperture edges comprise a top aperture edge, a bottom aperture edge opposite of the top aperture edge, and two opposing side aperture edges;

the luminaire further comprises a luminaire photometric distribution comprising the primary photometric distribution and the secondary photometric distribution; and

the luminaire photometric distribution is asymmetrical about a plane that extends through the center of the aperture parallel to the top and bottom aperture edges and orthogonal to the two opposing side aperture edges.

26. The luminaire of claim 1, wherein:

the luminaire is positioned on a vertical wall;

the aperture comprises a center;

the aperture edges comprise a top aperture edge, a bottom aperture edge opposite of the top aperture edge, and two opposing side aperture edges;

the primary optical subsystem and the at least one secondary optical subsystem are positioned asymmetrically within the housing about a plane that extends through the center of the aperture parallel to the top and bottom aperture edges and orthogonal to the two opposing side aperture edges.

27. A luminaire for illuminating an architectural space, the luminaire comprising:

a housing comprising a plurality of housing walls, wherein a first housing wall comprises a front face facing the architectural space and an aperture extending through the first housing wall and defined by aperture edges;

side surfaces that extend rearwardly into the housing from at least one of the aperture edges;

a first optical subsystem and a second optical subsystem, wherein at least one of the first optical subsystem and the second optical subsystem is disposed within the housing and configured to emit light through the aperture such that at least one of the first optical subsystem and the second optical subsystem is not positioned between the aperture edges when viewed through the aperture perpendicularly to the front face and such that at least one of the first optical subsystem and the second optical subsystem is invisible within the housing when viewed through the aperture perpendicularly to the front face; and

a diffuser attached to the housing and extending across a majority of the aperture when viewed perpendicularly to the front face, wherein the diffuser curves away from the first housing wall into the housing and wherein the diffuser comprises a distal edge that is disposed (i) inside the housing and (ii) rearward of at least one of the first optical subsystem and the second optical subsystem, wherein;

the first optical subsystem is disposed adjacent to a second housing wall and the second optical subsystem is disposed adjacent to a third housing wall that is opposite the second housing wall in the housing; and

a majority of light from the first optical subsystem does not pass through the diffuser and a majority of light from the second optical subsystem does pass through the diffuser.

28. The luminaire of claim 27, wherein a all light from the second optical subsystem passes through the diffuser.

29. The luminaire of claim 27, wherein the first optical subsystem and the second optical subsystem are independently controllable to vary at least one of a quantity or a color of light emitted from the first optical subsystem and the second optical subsystem.

30. The luminaire of claim 27, wherein:

at least one of the first optical subsystem and the second optical subsystem produces a photometric distribution with a centerline directed through the aperture at an angle to the first housing wall; and

a majority of light in the photometric distribution is directed through the aperture at an angle to the first housing wall such that the luminaire is configured to illuminate a surface that is nonparallel with the front face of the housing.

31. The luminaire of claim 27, wherein the diffuser extends from the first housing wall and comprises a convex portion facing an interior of the housing.

32. The luminaire of claim 27, wherein:

the luminaire is mounted in a vertical wall;

the front face is approximately flush with the vertical wall; and

at least one of the first optical subsystem and the second optical subsystem is disposed within the housing below a lower aperture edge.

33. The luminaire of claim 27, wherein the diffuser is disposed adjacent to a rear portion of the side surfaces within the housing.

34. The luminaire of claim 27, wherein the side surfaces are substantially perpendicular to the first housing wall.

35. The luminaire of claim 27, wherein:

at least one of the first optical subsystem and the second optical subsystem is disposed adjacent to an intersection of the first housing wall with a second housing wall; and

an internal surface of the first housing wall and an internal surface of the second housing wall form an approximately 90°

angle with one another.

36. The luminaire of claim 27, wherein the diffuser is positioned within the housing to extend toward a second housing wall such that a majority of at least one of the first optical subsystem and the second optical subsystem is disposed between (i) a projected intersection between the diffuser and the second housing wall and (ii) the first housing wall.

37. The luminaire of claim 36, wherein a majority of the first optical subsystem is disposed between (i) the projected intersection between the diffuser and the second housing wall and (ii) the first housing wall.

38. A luminaire for illuminating an architectural space, the luminaire comprising:

a housing comprising a plurality of walls, wherein a first housing wall comprises a front face facing the architectural space and an aperture extending through the first housing wall and defined by aperture edges;

a primary optical subsystem, the primary optical subsystem producing a primary photometric distribution;

at least one secondary optical subsystem, the at least one secondary optical subsystem producing a secondary photometric distribution different from the primary photometric distribution; and

a diffuser attached to the housing and extending across at least part of the aperture when viewed perpendicularly to the front face, wherein the diffuser curves away from the first housing wall into the housing and wherein the diffuser is positioned within the housing to extend toward a second housing wall such that a majority of the primary optical subsystem is disposed between (i) a projected intersection between the diffuser and the second housing wall and (ii) the first housing wall,

wherein the primary optical subsystem and the at least one secondary optical subsystem are disposed within the housing such that they are not positioned between the aperture edges when viewed through the aperture perpendicularly to the front face and such that all of the optical subsystems are invisible within the housing when viewed through the aperture perpendicularly to the front face, and

wherein a majority of light in the primary photometric distribution does not pass through the diffuser and a majority of light in the secondary photometric distribution does pass through the diffuser.

39. The luminaire of claim 38, wherein the at least one secondary optical subsystem is disposed on a planar surface that is perpendicular to the front face.

40. The luminaire of claim 38, wherein:

the at least one secondary optical subsystem comprises a first secondary optical subsystem and a second secondary optical subsystem;

the first secondary optical subsystem is disposed within the housing on a planar surface that is perpendicular to the front face; and

the second secondary optical subsystem is disposed within the housing such that the second secondary optical subsystem is at least partially aimed toward a rear portion of the housing.

41. The luminaire of claim 38, wherein:

the at least one secondary optical subsystem comprises a first secondary optical subsystem and a second secondary optical subsystem;

the first secondary optical subsystem is disposed within the housing on a first side of the aperture; and

the second secondary optical subsystem is disposed within the housing on a second side of the aperture opposite the first side of the aperture.

42. The luminaire of claim 38, wherein:

the at least one secondary optical subsystem is disposed within the housing either (i) on a planar surface that is perpendicular to the front face or (ii) on a surface such that the at least one secondary optical subsystem is at least partially aimed toward a rear portion of the housing.