Methods and apparatus for providing workspace lighting and facilitating workspace customization

• US 7,348,736 B2
• Filed: 01/24/2006
• Issued: 03/25/2008
• Est. Priority Date: 01/24/2005
• Status: Active Grant

• Current Assignee: Signify North America Corporation (Signify N.V.)
• Original Assignee: Philips Solid-State Lighting Solutions (Koninklijke Philips N.V.)
• Inventors: Piepgras, Colin, Mollnow, Tomas, Dowling, Kevin J.
• Primary Examiner(s): Chen; Shih-Chao
• Assistant Examiner(s): A, MINH D
• Application Number:
  US11/338,133
• Publication Number:
  US 20060170376A1
• Time in Patent Office: 791 Days
• Field of Search: 315/130, 315/131, 315/132, 315/291, 315/312, 315/307, 362611-614, 362/630, 362/632, 362/633, 362/634, 362/555, 362/33, 362/523, 362/52, 362/84
• US Class Current: 315/291
• CPC Class Codes: E06B 3/6722 with adjustable passage of light
• CPC Class Codes: G02F 2202/14 photochromic
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/165 following a pre-assigned programmed sequence; Logic control [LC]

Abstract

Methods and apparatus for customization of a workspace, including lighting in the workspace. Multiple LED-based lighting units arranged in a personal workspace may be conveniently controlled by an occupant of the workspace to customize or personalize workspace lighting. Workspace customization, including lighting conditions, further is facilitated by various power distribution schemes to allow convenient access to power in the workspace for lighting units and other electronic devices. Workspace dividers, partitions and walls may be particularly configured to accommodate power distribution systems and various components of networked lighting systems in the workspace environment.

Claims

1. A workspace, comprising:

at least one work surface;

at least one divider to provide at least one boundary for the workspace, the at least one divider including a frame and at least one finished surface exposed to the workspace;

a plurality of LED-based lighting units to generate visible light in the workspace;

at least one controller to control at least some of the plurality of LED-based lighting units, the at least one controller being disposed in an interior portion of the frame of the at least one divider;

at least one power supply disposed in the interior portion of the frame of the at least one divider, the at least one power supply receiving as an input an AC line voltage and providing as an output a DC voltage, wherein the DC voltage provides operating power for at least some of the plurality of LED-based lighting units; and

at least one user-interface, coupled to the at least one controller, to facilitate control of at least one characteristic of at least some of the visible light generated in the workspace by at least some of the plurality of LED-based lighting units.

2. The workspace of claim 1, wherein the visible light includes at least one of illumination in at least a portion of the workspace and task lighting directed to at least a portion of the at least one work surface, and wherein the plurality of LED-based lighting units include:

at least one first lighting unit to provide at least some of the illumination; and

at least one second lighting unit to provide at least some of the task lighting, wherein the at least one user-interface is configured to facilitate control of at least one of a color and a color temperature of at least one of the illumination and the task lighting.

3. The workspace of claim 2, wherein:

the plurality of LED-based lighting units further includes at least one geometric panel lighting unit disposed in the workspace;

at least some of the visible light generated by the at least one geometric panel lighting unit constitutes at least one of a static lighting pattern, a dynamic lighting pattern, a graphic display, a text message, and a video; and

the at least one user-interface is further configured to facilitate selection of the at least one of the static lighting pattern, the dynamic lighting pattern, the graphic display, the text message, and the video.

4. The workspace of claim 3, wherein the at least one geometric panel lighting unit is integrated to form a portion of the at least one divider.

5. The workspace of claim 2, wherein the plurality of LED-based lighting units further includes at least one privacy-related lighting unit that is configured to be at least partially transparent when at least some of the visible light is not generated and substantially opaque when at least some of the visible light is generated.

6. The workspace of claim 5, wherein the at least one privacy-related lighting unit is integrated to form a portion of the at least one divider.

7. The workspace of claim 5, wherein the at least one privacy-related lighting unit includes:

an at least partially transparent substrate; and

at least one LED-based light source configured to direct the at least some of the visible light to the at least partially transparent substrate.

8. The workspace of claim 7, wherein the at least one partially transparent substrate includes a rigid panel, and wherein the at least one LED-based light source is configured to generate the at least some of the visible light from within the rigid panel.

9. The workspace of claim 8, wherein the rigid panel is integrated to form a portion of the at least one divider.

10. The workspace of claim 8, wherein the rigid panel includes a plurality of perturbations within the panel or on a surface of the panel that are configured to serve as scattering centers for the at least some of the visible light.

11. The workspace of claim 7, wherein the at least one partially transparent substrate includes at least one of a flexible translucent mesh screen and a halftone screen.

12. The workspace of claim 2, wherein:

the at least one first lighting unit includes at least one first addressable lighting unit having at least one first address and the at least one second lighting unit includes at least one second addressable lighting unit having at least one second address different than the first address; and

the at least one controller is configured to control at least one of a first color and a first color temperature of the illumination based on the at least one first address, and at least one of a second color and a second color temperature of the task lighting based on the at least one second address.

13. The workspace of claim 12, wherein:

the at least one user-interface includes at least one graphics user interface (GUI) associated with a computer display disposed in the workspace, the GUI being configured to allow an occupant of the workspace to select at least one user-definable parameter associated with at least one of the illumination and the task lighting; and

the at least one controller is configured to control at least one characteristic of at least one of the illumination and the task lighting based at least in part on the at least one user-definable parameter.

14. The workspace of claim 13, wherein the at least one GUI is configured to allow the occupant to specify at least one of the first color, the first color temperature, the second color and the second color temperature via the at least one user-definable parameter.

15. The workspace of claim 13, wherein the at least one GUI is configured to allow the occupant to specify at least one lighting effect involving at least one of the illumination and the task lighting via the at least one user-definable parameter.

16. The workspace of claim 13, wherein the at least one GUI is configured to allow the occupant to specify a correspondence between at least one condition and the at least one of the illumination and the task lighting via the at least one user-definable parameter.

17. A method of providing lighting in a workspace including at least one work surface, the method comprising acts of:

A) generating visible light in the workspace via at least one LED-based lighting unit; and

B) controlling at least one of a color and a color temperature of at least some of the visible light generated in the workspace via at least one user-interface,

wherein the act A) comprises acts of;

A1) generating first visible light in the workspace via at least one first LED-based lighting unit; and

A2) generating second visible light in the workspace via at least one second LED-based lighting unit, and

wherein the act B) comprises an act of controlling at least one of a first color and a first color temperature of the first visible light and at least one of a second color and a second color temperature of the second visible light via the at least one user-interface,

and wherein the first visible light includes illumination in at least a portion of the workspace and the second visible light includes task lighting directed to at least a portion of the at least one work surface.

18. The method of claim 17, wherein both the first visible light and the second visible light include colored light, and wherein the act B) comprises an act of independently controlling the first color of the first visible light and the second color of the second visible light via the at least one user-interface.

19. The method of claim 17, wherein the first visible light includes essentially white light, and wherein the act B) comprises an act of controlling the first color temperature of the first visible light via the at least one user-interface.

20. The method of claim 19, wherein the second visible light includes essentially white light, and wherein the act B) comprises an act of controlling the second color temperature of the second visible light via the at least one user-interface.

21. The method of claim 20, wherein the act B) comprises an act of identically controlling the first color temperature and the second color temperature.

22. The method of claim 20, wherein the act B) comprises an act of independently controlling the first color temperature and the second color temperature.

23. The method of claim 20, wherein the act B) comprises an act of controlling the first color temperature and the second color temperature such that the first color temperature and the second color temperature are different.

24. The method of claim 19, wherein the second visible light includes colored light, and wherein the act B) comprises an act of controlling the second color of the second visible light generated in the workspace via the at least one user-interface.

25. The method of claim 24, wherein the at least one user-interface includes a first user-interface to control the first color temperature of the first visible light, and a second user-interface to control the second color of the second visible light.

26. The method of claim 24, wherein the at least one user-interface includes a single user-interface to control both the first color temperature of the first visible light and the second color of the second visible light.

27. The method of claim 17, wherein the at least one first LED-based lighting unit includes at least one first addressable lighting unit having at least one first address and the at least one second LED-based lighting unit includes at least one second addressable lighting unit having at least one second address different than the first address, and wherein the act B) comprises an act of:

B1) controlling the at least one of the first color and the first color temperature of the first visible light based on the at least one first address, and controlling the at least one of the second color and the second color temperature of the second visible light based on the at least one second address.

28. The method of claim 17, wherein the at least one first LED-based lighting unit includes at least one first addressable lighting unit having at least one first address, wherein the at least one first addressable lighting unit is disposed in a ceiling above the workspace as part of a fixed arrangement of lighting units, and wherein the method further comprises acts of:

assigning the at least one first address to the workspace; and

controlling the at least one of the color and the color temperature of the at least some of the visible light via the at least one user-interface, based at least in part on the at least one first address.

29. A method of providing lighting in a workspace including at least one work surface, the method comprising acts of:

A) generating visible light in the workspace via at least one LED-based lighting unit; and

B) controlling at least one of a color and a color temperature of at least some of the visible light generated in the workspace via at least one user-interface,

wherein the act A) comprises acts of;

A1) generating first visible light in the workspace via at least one first LED-based lighting unit; and

A2) generating second visible light in the workspace via at least one second LED-based lighting unit, and

wherein the act B) comprises an act of controlling at least one of a first color and a first color temperature of the first visible light and at least one of a second color and a second color temperature of the second visible light via the at least one user-interface,

and wherein;

the at least one first LED-based lighting unit includes at least one first addressable lighting unit having at least one first address and the at least one second LED-based lighting unit includes at least one second addressable lighting unit having at least one second address different than the first address;

the act B) comprises an act of;

B1) controlling the at least one of the first color and the first color temperature of the first visible light based on the at least one first address, and controlling the at least one of the second color and the second color temperature of the second visible light based on the at least one second address;

the at least one user-interface includes at least one graphics user interface (GUI) associated with a computer display; and

the method further comprises acts of;

B2) selecting via the graphics user interface at least one user-definable parameter associated with at least one of the first visible light and the second visible light; and

B3) performing the act B1) based at least in part on the at least one user-definable parameter.

30. The method of claim 29, wherein the act B2) comprises an act of specifying at least one of the first color, the first color temperature, the second color and the second color temperature via the at least one user-definable parameter.

31. The method of claim 29, wherein the act B2) comprises an act of specifying at least one lighting effect involving at least one of the first visible light and the second visible light via the at least one user-definable parameter.

32. The method of claim 29, wherein the act B2) comprises an act of:

specifying a correspondence between at least one condition and the at least one of the first visible light and the second visible light via the at least one user-definable parameter.

33. The method of claim 32, wherein the at least one condition relates to at least one of an identity and a work function of an occupant associated with the workspace.

34. The method of claim 32, wherein the at least one condition relates to a relative location of the workspace in a larger environment comprising multiple workspaces.

35. The method of claim 32, wherein the at least one condition includes at least one sensed environmental condition.

36. The method of claim 35, wherein the at least one sensed environmental condition includes at least one of a motion, a sound, and a natural lighting condition in the workspace.

37. The method of claim 32, wherein the at least one condition includes at least one calendar event having at least one of a date and a time.

38. The method of claim 32, wherein the at least one condition includes at least one emergency or alarm event associated with the workspace.

39. The method of claim 32, wherein the at least one condition includes at least one communication event associated with the workspace.

40. The method of claim 39, wherein the at least one communication event includes at least one of a telephone call and an email message.

41. The method of claim 32, wherein the at least one condition relates to at least one item of information provided by an information source.

42. The method of claim 41, wherein the information source includes the Internet.

43. A workspace, comprising:

at least one work surface;

at least one LED-based lighting unit to generate visible light in the workspace, the visible light including at least one of illumination in at least a portion of the workspace and task lighting directed to at least a portion of the at least one work surface; and

at least one user-interface, coupled to the at least one LED-based lighting unit and configured to facilitate control of at least one of a color and a color temperature of at least one of the illumination and the task lighting,

wherein the at least one LED-based lighting unit includes;

at least one up-lighting unit to provide at least some of the illumination directed upward;

at least one down-lighting unit to provide at least some of the illumination directed downward or at least some of the task lighting.

44. A workspace, comprising:

at least one work surface;

at least one LED-based lighting unit to generate visible light in the workspace, the visible light including at least one of illumination in at least a portion of the workspace and task lighting directed to at least a portion of the at least one work surface; and

at least one user-interface, coupled to the at least one LED-based lighting unit and configured to facilitate control of at least one of a color and a color temperature of at least one of the illumination and the task lighting,

wherein the at least one LED-based lighting unit includes at least one geometric panel lighting unit disposed in the workspace;

at least some of the visible light generated by the at least one geometric panel lighting unit constitutes at least one of a static lighting pattern, a dynamic lighting pattern, a graphic display, a text message, and a video; and

the at least one user-interface is configured to facilitate selection of the at least one of the static lighting pattern, the dynamic lighting pattern, the graphic display, the text message, and the video,

and wherein the workspace further comprises;

at least one divider to provide at least one boundary for the workspace, the at least one divider including a frame and at least one finished surface exposed to the workspace, wherein the at least one geometric panel lighting unit is integrated to form a portion of the at least one divider.

45. A workspace, comprising:

at least one work surface;

at least one LED-based lighting unit to generate visible light in the workspace, wherein the at least one LED-based lighting unit includes at least one privacy-related lighting unit that is configured to be at least partially transparent when the visible light is not generated and substantially opaque when the visible light is generated; and

at least one user-interface, coupled to the at least one LED-based lighting unit, to facilitate control of at least one of a color and a color temperature of at least some of the visible light generated in the workspace.

46. The workspace of claim 45, further comprising:

at least one divider to provide at least one boundary for the workspace, the at least one divider including a frame and at least one finished surface exposed to the workspace, wherein the at least one privacy-related lighting unit is integrated to form a portion of the at least one divider.

47. The workspace of claim 45, wherein the at least one privacy-related lighting unit includes:

an at least partially transparent substrate; and

at least one LED-based light source configured to direct the at least some of the visible light to the at least partially transparent substrate.

48. The workspace of claim 47, wherein the at least one partially transparent substrate includes a rigid panel, and wherein the at least one LED-based light source is configured to generate the at least some of the visible light from within the rigid panel.

49. The workspace of claim 48, wherein the rigid panel includes a plurality of perturbations within the panel or on a surface of the panel that are configured to serve as scattering centers for the at least some of the visible light.

50. The workspace of claim 47, wherein the at least one partially transparent substrate includes at least one of a flexible translucent mesh screen and a halftone screen.

51. A workspace, comprising:

at least one work surface;

at least one LED-based lighting unit to generate visible light in the workspace, the visible light including at least one of illumination in at least a portion of the workspace and task lighting directed to at least a portion of the at least one work surface;

at least one user-interface, coupled to the at least one LED-based lighting unit and configured to facilitate control of at least one of a color and a color temperature of at least one of the illumination and the task lighting; and

at least one divider to provide at least one boundary for the workspace, the at least one divider including a frame and at least one finished surface exposed to the workspace; and

at least one controller to control the at least one LED-based lighting unit based on at least one control signal relating to operation of the at least one user-interface, wherein the at least one controller is disposed in an interior portion of the frame of the at least one divider.

52. The workspace of claim 51, wherein the at least one LED-based lighting unit is coupled to the at least one divider.

53. A workspace, comprising:

at least one work surface;

at least one LED-based lighting unit to generate visible light in the workspace, the visible light including at least one of illumination in at least a portion of the workspace and task lighting directed to at least a portion of the at least one work surface;

at least one user-interface, coupled to the at least one LED-based lighting unit and configured to facilitate control of at least one of a color and a color temperature of at least one of the illumination and the task lighting; and

at least one divider to provide at least one boundary for the workspace, the at least one divider including a frame and at least one finished surface exposed to the workspace; and

at least one power supply disposed in an interior portion of the frame of the at least one divider, the at least one power supply receiving as an input an AC line voltage and providing as an output a DC voltage, wherein the DC voltage provides operating power for the at least one LED-based lighting unit.

54. The workspace of claim 53, wherein the at least one finished surface of the divider comprises a powered pin-board coupled to the DC voltage.

55. The workspace of claim 54, wherein the powered pin-board comprises:

a positive conductor plane coupled to a positive potential of the DC voltage;

a negative conductor plane coupled to a negative potential of the DC voltage; and

an insulator disposed between the positive conductor plane and the negative conductor plane.

56. The workspace of claim 55, wherein the at least one LED-based lighting unit includes a power connector including a partially-insulated positive pin and a partially-insulated negative pin to facilitate electrical and mechanical coupling of the lighting unit to the powered pin-board.

57. The workspace of claim 53, wherein the at least one finished surface of the divider comprises a powered slatwall coupled to the DC voltage.

58. The workspace of claim 57, wherein the powered slatwall includes a plurality of powered slats disposed along a horizontal length of the powered slatwall and substantially parallel to the work surface, and wherein each powered slat includes at least one positive connection point coupled to a positive potential of the DC voltage and at least one negative connection point coupled to a negative potential of the DC voltage.

59. The workspace of claim 58, wherein the at least one LED-based lighting unit includes a power connector formed to facilitate electrical and mechanical coupling of the lighting unit to at least one powered slat of the powered slatwall.