Cove lighting

• US 10,219,347 B2
• Filed: 10/12/2016
• Issued: 02/26/2019
• Est. Priority Date: 10/13/2015
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Philips Lighting BV (Koninklijke Philips N.V.)
• Inventors: Van De Sluis, Bartel Marinus, Dekker, Tim, Aliakseyeu, Dzmitry Viktorovich, Newton, Philip Steven
• Primary Examiner(s): King, Monica C
• Application Number:
  US15/768,178
• Publication Number:
  US 20180324924A1
• Time in Patent Office: 867 Days
• CPC Class Codes: F21V 21/005 for several lighting devices in an end-to-end arrangement, i.e. light tracks
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 23/0492 the sensor detecting a change in orientation, a movement or an acceleration of the lighting device, e.g. a tilt switch
• CPC Class Codes: F21W 2121/008 for simulation of a starry sky or firmament
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

Presented are concepts for controlling cove lighting. Once such concept provides cove lighting adapted to output decorative light for illuminating the ceiling of an architectural space. The cove lighting comprises a control unit adapted to individually control each of the primary light sources in response to a lighting control signal so that the output decorative light mimics an outdoor lighting condition.

Claims

1. Cove lighting for positioning in a cove or mounting on a wall, the cove lighting comprising:

an array of individually controllable primary light sources adapted to, when positioned in a cove or mounted on a wall, provide light to an architectural space by projecting decorative light from the array of individually controllable primary light sources onto a ceiling of the architectural space; and

a control unit adapted to individually control a light output of each of the primary light sources in response to a lighting control signal so that the decorative light output from the array of individually controllable primary light sources mimics an outdoor lighting condition,

wherein the primary light sources are controllable as individual pixels for outputting the decorative light as a pixelated sky projection.

2. The cove lighting of claim 1, wherein the control unit is adapted to individually control the colour, intensity, or colour temperature of the light output from each of the primary light sources in response to the lighting control signal.

3. The cove lighting of claim 1, wherein the cove lighting is formed from lighting modules each providing at least one of the primary light sources, and wherein the control unit is adapted to control the lighting modules as a single virtual array of primary light sources.

4. The cove lighting of claim 3, wherein the lighting modules are adapted to be releasably coupled or decoupled to each other so that the lighting modules may be added or removed from the cove lighting to increase or decrease an overall length of the cove lighting.

5. The cove lighting of claim 1, further comprising an array of individually controllable secondary light sources adapted to provide direct light for illuminating the architectural space below the ceiling, and wherein the control unit is further adapted to individually control a light output of each of the secondary light sources in response to the lighting control signal so that the direct light mimics the outdoor lighting condition.

6. The cove lighting of claim 1, further comprising a sensor unit adapted to detect information relating to at least one of:

a position of the cove lighting;

an orientation of the cove lighting;

a current time;

a current date;

a geographical location of the cove lighting;

weather information;

a layout of the cove lighting;

surroundings of the cove lighting;

orientation of at least one of the plurality of primary light sources;

a distance from the cove lighting to the ceiling;

properties of the ceiling; and

one or more dimensions of the cove, and to generate the lighting control signal based on the detected information.

7. A Cove lighting system comprising a cove lighting of claim 1, and further comprising a processing system adapted to generate the lighting control signal based on one or more of a current time, a current date, a geographical location and weather information.

10. A computer program product for controlling cove lighting according to claim 1,

wherein the computer program product comprises a computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code configured to execute on a processing system.

11. The cove lighting of claim 2, wherein the cove lighting comprises further lighting modules each providing at least one of the secondary light sources, and wherein the cove lighting comprises a module adjustment arrangement adapted to alter the relative positioning of the lighting modules and further lighting modules in response to an arrangement control signal.

12. The cove lighting of claim 1, wherein at least one of the array of individually controllable primary light sources and the array of individually controllable secondary light sources comprises a two-dimensional array of light sources adapted to output light in multiple directions.

13. The cove lighting system of claim 7, wherein the processing system is adapted to generate the lighting control signal further based on at least one of:

a position of the cove lighting;

an orientation of the cove lighting;

a layout of the cove lighting;

surroundings of the cove lighting;

orientation of at least one of the plurality of primary light sources;

a distance from the cove lighting to the ceiling;

properties of the ceiling; and

one or more dimensions of the cove.

14. The cove lighting system of claim 13, wherein the processing system is adapted to generate the lighting control signal based on detected information from the sensor unit.

8. A method of controlling cove lighting positioned in a cove or mounted on a wall, the cove lighting comprising an array of individually controllable primary light sources adapted to provide light to an architectural space by projecting decorative light from the array of individually controllable primary light sources onto a ceiling of the architectural space, wherein the method comprises:

generating, based on one or more of a current time, a current date, a geographical location and weather information, a lighting control signal for individually controlling a light output of each of the primary light sources in order that the decorative light output from the array of individually controllable primary light sources mimics an outdoor lighting condition,

wherein the primary light sources are controllable as individual pixels for outputting the decorative light as a pixelated sky projection.

9. The method of claim 8, further comprising:

detecting information relating to at least one of;

a position of the cove lighting;

an orientation of the cove lighting;

a current time;

a current date;

a geographical location of the cove lighting; and

weather information;

a layout of the cove lighting;

surroundings of the cove lighting;

orientation of at least one of the plurality of primary light sources;

a distance from the cove lighting to the ceiling;

properties of the ceiling; and

one or more dimensions of the cove, and

generating the lighting control signal further based on the detected information.