Lighting system for accentuating regions of a layer and associated methods

• US 9,173,269 B2
• Filed: 05/12/2014
• Issued: 10/27/2015
• Est. Priority Date: 05/15/2011
• Status: Expired due to Fees

• Current Assignee: Lighting Science Group Corporation (Pegasus Capital Advisors, L.P.)
• Original Assignee: Lighting Science Group Corporation (Pegasus Capital Advisors, L.P.)
• Inventors: Maxik, Fredric S., Bartine, David E., Soler, Robert R., Oostdyk, Mark Andrew, Widjaja, Addy S., Regan, Matthew
• Primary Examiner(s): Sajous, Wesner
• Application Number:
  US14/275,371
• Publication Number:
  US 20140239818A1
• Time in Patent Office: 533 Days
• US Class Current: 1/1
• CPC Class Codes: F21S 10/023 by selectively switching fixed light sources
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/22 using optical feedback
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources

Abstract

A lighting system for accenting a region of a target surface comprising a color matching engine, a plurality of light sources, a color capture device configured to measure light reflected by a target surface, and a computerized device configured to operate the plurality of light sources to emit an analysis light so as to be incident upon the target surface and identify a region of the target surface that reflects two or more wavelength ranges of light using a pattern recognition algorithm, defining a detected pattern having wavelength ranges. The color matching engine is configured to perform a matching operation that operates to determine dominant wavelength(s) of the wavelength ranges and polychromatic lights including or excluding dominant wavelength(s). The computerized device operates the light sources to emit a combined light being sequentially each of the polychromatic lights.

Claims

1. A lighting system for accenting a region of a target surface comprising:

a color matching engine;

a plurality of light sources;

a color capture device; and

a computerized device operatively coupled to each of the color matching engine, the plurality of light sources, and the color capture device, and configured to individually operate each of the plurality of light sources;

wherein the computerized device is configured to operate the plurality of light sources to emit an analysis light so as to be incident upon a target surface;

wherein the color capture device is configured to measure light reflected by the target surface;

wherein the computerized device is configured to identify a region of the target surface that reflects two or more wavelength ranges of light using a pattern recognition algorithm, defining a detected pattern comprising a first region having a first surface scatter profile associated with a first wavelength range and a second region having a second surface scatter profile associated with a second wavelength range;

wherein the color matching engine is configured to perform a matching operation that operates to determine a first dominant wavelength of the first wavelength range and a second dominant wavelength of the second wavelength range, and to determine a first polychromatic light including the first dominant wavelength and excluding the second dominant wavelength, and a second polychromatic light including the second dominant wavelength and excluding the first dominant wavelength; and

wherein the computerized device is configured to operate the plurality of light sources to emit sequential combined lights comprising each of the first polychromatic light and the second polychromatic light emitted in sequence.

2. The lighting system according to claim 1 wherein each light source comprises a plurality of light-emitting diodes (LEDs).

3. The lighting system according to claim 1 wherein the combined lights are white lights.

4. The lighting system according to claim 1 wherein the computerized device is configured to operate the plurality of luminaires so as to sequentially emit the combined lights to comprise first the first polychromatic light for a first duration and to comprise second the second polychromatic light for a second duration;

and wherein a length of each of the first duration and the second duration is selected so as to simulate motion in a transition between the first region and the second region.

5. The lighting system according to claim 1 wherein:

the detected pattern is defined as a first detected pattern;

the computerized device is configured to identify a pattern of the target surface that reflects light outside the wavelength ranges associated with the first detected pattern using the pattern recognition algorithm, defining a second detected pattern comprising a third region having a third surface scatter profile associated with a third wavelength range and a fourth region having a fourth surface scatter profile associated with a fourth wavelength range; and

the color matching engine is configured to perform a matching operation that operates to determine a third dominant wavelength of the third wavelength range and a fourth dominant wavelength of the fourth wavelength range.

6. The lighting system according to claim 5 wherein the color matching engine is configured to determine a first polychromatic light including the first and third dominant wavelengths and excluding the second and fourth dominant wavelengths, and a second polychromatic light including the second and fourth dominant wavelengths and excluding the first and third dominant wavelengths.

7. The lighting system according to claim 5 wherein:

the color matching engine is configured to;

determine a first polychromatic light including the first dominant wavelength and excluding each of the second, third, and fourth dominant wavelengths,

determine a second polychromatic light including the second dominant wavelength and excluding each of the first, third, and fourth dominant wavelengths,

determine a third polychromatic light including the third dominant wavelength and excluding each of the first, second, and fourth dominant wavelengths, and

determine a fourth polychromatic light including the fourth dominant wavelength and excluding each of the first, second, and third dominant wavelengths; and

the computerized device is configured to operate the plurality of light sources to emit combined lights comprising sequentially each of the first polychromatic light, the second polychromatic light, the third polychromatic light, and the fourth polychromatic light.

8. The lighting system according to claim 7 wherein the computerized device is configured to operate the plurality of luminaires so as to sequentially emit a sequence of combined lights comprising the first polychromatic light for a first duration, the second polychromatic light for a second duration, the third polychromatic light for a third duration, and the fourth polychromatic light for a fourth duration;

and wherein a length of each of the first duration, second duration, third duration, and fourth duration are selected so as to simulate motion in a transition between any of the first region, the second region, the third region, and the fourth region.

9. A lighting system for accenting a region of a target surface comprising:

a color matching engine;

a plurality of light sources, the plurality of light sources comprising a first light source positioned at a first location and a second light source positioned at a second location;

a color capture device; and

a computerized device operatively coupled to each of the color matching engine, the plurality of light sources, and the color capture device, and configured to individually operate each of the plurality of light sources;

wherein the computerized device is configured to operate the plurality of light sources to emit an analysis light so as to be incident upon a target surface;

wherein the color capture device is configured to measure light reflected by the target surface;

wherein the computerized device is configured to identify a pattern of the target surface that reflects light within a wavelength range of light using a pattern recognition algorithm, defining a detected pattern having a first region and a second region having a first surface scatter profile associated with a first wavelength range;

wherein the color matching engine is configured to perform a matching operation that operates to determine a first dominant wavelength of the first wavelength range, and to determine a first polychromatic light including the first dominant wavelength and a second polychromatic light excluding the first dominant wavelength;

wherein light emitted by the first light source is not incident upon the second region and light emitted by the second light source is not incident upon the first region;

wherein the computerized device is configured to selectively operate the first light source and the second light source such that one of the first light source and the second light source emits the first polychromatic light while the other emits the second polychromatic light.

10. The lighting system according to claim 9 wherein each light source comprises a plurality of light-emitting diodes (LEDs).

11. The lighting system according to claim 9 wherein each of the first polychromatic light and the second polychromatic light is a white light.

12. The lighting system according to claim 9 wherein the computerized device is configured to sequentially operate the first and second light sources such that:

first, the first light source emits the first polychromatic light and the second light source emits the second polychromatic light for a first duration, and

second, the first light source emits the second polychromatic light and the second light source emits the first polychromatic light for a second duration;

wherein a length of each of the first duration and the second duration is selected so as to simulate motion in a transition between the first region and the second region.

13. The lighting system according to claim 9 wherein:

the detected pattern is defined as a first detected pattern;

the computerized device is configured to identify a pattern of the target surface that reflects light within a wavelength range of using the pattern recognition algorithm, defining a second detected pattern comprising a third region and a fourth region having a second scatter profile associated with a second wavelength range; and

the color matching engine is configured to perform a matching operation that operates to determine a second dominant wavelength of the second wavelength range.

14. The lighting system according to claim 13 wherein:

the color matching engine is configured to determine a first polychromatic light including the first dominant wavelength and excluding the second dominant wavelength, a second polychromatic light including each of the first and second dominant wavelengths, a third polychromatic light including the second dominant wavelength and excluding the first dominant wavelength, and a fourth polychromatic light excluding each of the first and second dominant wavelengths;

light emitted by the first light source is incident upon the first and third regions and not incident upon the second and fourth regions;

light emitted by the second light source is incident upon the second and fourth regions and not incident upon the first and third regions; and

the computerized device is configured to selectively operate the first light source and the second light source such that;

one of the first light source and the second light source emits the first polychromatic light while the other emits the fourth polychromatic light simultaneously,

one of the first light source and the second light source emits the second polychromatic light while the other emits the fourth polychromatic light simultaneously, and

one of the first light source and the second light source emits the third polychromatic light while the other emits the fourth polychromatic light simultaneously.

15. A lighting system for accenting a region of a target surface comprising:

a color matching engine;

a plurality of light sources, the plurality of light sources comprising a first light source positioned at a first location and a second light source positioned at a second location;

a color capture device; and

a computerized device operatively coupled to each of the color matching engine, the plurality of light sources, and the color capture device, and configured to individually operate each of the plurality of light sources;

wherein the computerized device is configured to operate the plurality of light sources to emit a polychromatic analysis light so as to be incident upon a target surface;

wherein the color capture device is configured to measure light reflected by the target surface;

wherein the computerized device is configured to identify a region of the target surface that reflects light that is definable as a pattern using a pattern recognition algorithm, defining a detected pattern;

wherein the computerized device is configured to determine if the detected pattern comprises a first region and a second region configured to reflect light within a first wavelength range or comprises a first region configured to reflect light within a first wavelength range and a second region configured to reflect light within a second wavelength range;

wherein if the computerized device determines the detected pattern comprises first and second regions configured to reflect light within a same first wavelength range;

the color matching engine is configured to perform a matching operation that operates to determine a first dominant wavelength of the first wavelength range, and to determine a first polychromatic light including the first dominant wavelength and a second polychromatic light excluding the first dominant wavelength, and

the computerized device is configured to selectively operate the first light source and the second light source such that one of the first light source and the second light source emits the first polychromatic light while the other emits the second polychromatic light; and

wherein if the computerized device determines the detected pattern comprises a first region configured to reflect light within a first wavelength range and a second region configured to reflect light within a second wavelength range;

the color matching engine is configured to perform a matching operation that operates to determine a first dominant wavelength of the first wavelength range and a second dominant wavelength of the second wavelength range, and to determine a first polychromatic light including the first dominant wavelength and excluding the second dominant wavelength, and a second polychromatic light including the second dominant wavelength and excluding the first dominant wavelength, and

the computerized device is configured to operate the plurality of light sources to emit one of the first polychromatic light and the second polychromatic light.

16. The lighting system according to claim 15 wherein each light source comprises a plurality of light-emitting diodes (LEDs).

17. The lighting system according to claim 15 wherein each of the first polychromatic light and the second polychromatic light is a white light.

18. The lighting system according to claim 15 wherein if the computerized device determines the detected pattern comprises first and second regions configured to reflect light within the first wavelength range, the computerized device is configured to sequentially operate the first and second light sources such that:

first, the first light source emits the first polychromatic light and the second light source emits the second polychromatic light for a first duration, and

second, the first light source emits the second polychromatic light and the second light source emits the first polychromatic light for a second duration; and

wherein a length of each of the first duration and the second duration is selected so as to simulate motion in a transition between the first region and the second region.

19. The lighting system according to claim 15 wherein if the computerized device determines the detected pattern comprises a first region configured to reflect light within a first wavelength range and a second region configured to reflect light within a second wavelength range, the computerized device is configured to operate the plurality of luminaires so as to sequentially emit a sequence of combined lights first comprising the first polychromatic light for a first duration and second being the second polychromatic light for a second duration;

and wherein a length of each of the first duration and the second duration is selected so as to simulate motion in a transition between the first region and the second region.

20. The lighting system according to claim 15 wherein:

the detected pattern is defined as a first pattern;

the computerized device is configured to identify a pattern of the target surface that reflects light within a second wavelength range of light using the pattern recognition algorithm, defining a second detected pattern;

the computerized device is configured to determine if the second detected pattern comprises a third region and a fourth region configured to reflect light within a third wavelength range or comprises a third region configured to reflect light within a third wavelength range and a fourth region configured to reflect light within a fourth wavelength range;

if the computerized device determines the second detected pattern comprises a third region configured to reflect light within a third wavelength range and a fourth region configured to reflect light within a fourth wavelength range, the color matching engine is configured to perform a matching operation that operates to determine a third dominant wavelength of the third wavelength range and a fourth dominant wavelength of the fourth wavelength range; and

if the computerized device determines the second detected pattern comprises a third region and a fourth region configured to reflect light within a third wavelength range, the color matching engine is configured to perform a matching operation that operates to determine a third dominant wavelength of the third wavelength range.