IP Library Granted Patent US 8,702,259
Granted Patent B2
US 8,702,259 · App. 13/890,684 · Granted Apr 22, 2014

Color conversion occlusion and associated methods

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Quick Facts
Patent No.
US 8,702,259
App. No.
13/890,684
Granted
Apr 22, 2014
Kind
B2
Abstract

A light converting device is described for receiving source light within a source wavelength range, converting the source light into a converted light, and reflecting the converted light to a desired output direction. The lighting device may use a color conversion occlusion to receive the source light and reflect a converted light in the desired output direction. The converted light may be intermediately reflected by the enclosure, or alternatively passed through the enclosure, as it is directed in the desired output direction.

Claims (39)

1. A light converting device comprising:

an enclosure that is at least one of transparent and translucent;

an occlusion; and

a conversion material located adjacent to and generally conforming to a contour of at least part of the occlusion;

wherein at least part of the occlusion is located within the enclosure to receive a source light within a source wavelength range;

wherein the conversion material is configured to convert a source light to a converted light within a converted wavelength range;

wherein the occlusion is adapted to reflect the converted light through the enclosure to a desired output direction.

2. The light converting device of claim 1 further comprising an occlusion support connected to the enclosure and the occlusion.

3. The light converting device of claim 1 wherein the conversion material is selected from the group consisting of phosphors, quantum dots, luminescent materials, and fluorescent materials.

4. The light converting device of claim 1 wherein the conversion material comprises a first conversion element configured to convert the source light to a first converted light within a first conversion wavelength range and a second conversion element configured to convert the source light to a second converted light within a second conversion wavelength range.

5. The light converting device of claim 4 wherein the source light is a polychromatic light having a plurality of wavelength ranges.

6. The light converting device of claim 5 wherein the first conversion element is configured to convert light within a first wavelength range of the plurality of wavelength ranges of the source light; and wherein the second conversion element is configured to convert light within a second wavelength range of the plurality of wavelength ranges of the source light.

7. The light converting device of claim 1 wherein the source light is a monochromatic light.

8. The light converting device of claim 1 wherein the source light originates at least partially externally from the housing.

9. A light converting device comprising:

an enclosure;

an occlusion connected to the enclosure via an occlusion support; and

a conversion material located adjacent to and generally conforming to a contour of at least part of the occlusion, the conversion material comprising:

a first conversion element configured to convert a source light to a first converted light within a first conversion wavelength range; and

a second conversion element configured to convert the source light to a second converted light within a second conversion wavelength range;

wherein at least part of the occlusion is located within the enclosure to receive a source light within a source wavelength range; and

wherein the occlusion is adapted to reflect the first and second converted lights toward a desired output direction.

10. The light converting device of claim 9 wherein the conversion material is selected from the group consisting of phosphors, quantum dots, luminescent materials, and fluorescent materials.

11. The light converting device of claim 9 wherein the source light is a polychromatic light having a plurality of wavelength ranges.

12. The light converting device of claim 11 wherein the first conversion element is configured to convert light within a first wavelength range of the plurality of wavelength ranges of the source light; and wherein the second conversion element is configured to convert light within a second wavelength range of the plurality of wavelength ranges of the source light.

13. The light converting device of claim 9 wherein the source light is a monochromatic light.

14. The light converting device of claim 9 wherein the source light originates at least partially externally from the enclosure.

15. A method of converting a source light using a light converting device having an enclosure, an occlusion and a conversion material located adjacent to and generally conforming to a contour of the occlusion having first and second conversion elements, the method comprising:

receiving the source light within a source wavelength range at the occlusion;

converting by the first conversion element a portion of the source light into a first converted light within a first converted wavelength range;

converting by the second conversion element a portion of the source light into a second converted light within a second converted wavelength range; and

reflecting the first and second converted lights from the occlusion toward a desired output direction.

16. The method of claim 15 wherein the enclosure is at least one of transparent and translucent; and wherein the step of reflecting the first and second converted lights from the occlusion comprises reflecting the first and second converted lights in the direction of the enclosure.

17. A method according to claim 15 wherein the source light is a polychromatic light having a plurality of wavelength ranges; the method further comprising the steps of:

converting by the first conversion element a portion of the source light within a first wavelength range of the plurality of wavelength ranges of the source light into a first converted light within a first converted wavelength range; and

converting by the second conversion element a portion of the source light within a second wavelength range of the plurality of wavelength ranges of the source light into a second converted light within a second converted wavelength range.

18. The method of claim 15 wherein the conversion material is selected from a group consisting of phosphors, quantum dots, luminescent materials, and fluorescent materials.

19. The method of claim 15 wherein a reflecting surface of the occlusion is arcuate.

20. The method of claim 15 wherein the source light originates at least partially externally from the enclosure.

Assignments (8)
RELEASE OF SECURITY INTEREST Recorded Aug 14, 2018
From: MEDLEY CAPITAL CORPORATION
To: LIGHTING SCIENCE GROUP CORPORATION, A DELAWARE CORPORATION; BIOLOGICAL ILLUMINATION, LLC, A DELAWARE LIMITED LIABILITY COMPANY
Reel/Frame 048018/0515 →
RELEASE OF SECURITY INTEREST Recorded Apr 26, 2017
From: ACF FINCO I LP, A DELAWARE LIMITED PARTNERSHIP
To: LIGHTING SCIENCE GROUP CORPORATION, A DELAWARE CORPORATION; BIOLOGICAL ILLUMINATION, LLC, A DELAWARE LIMITED LIABILITY COMPANY
Reel/Frame 042340/0309 →
RELEASE OF SECURITY INTEREST Recorded Apr 26, 2017
From: ACF FINCO I LP, A DELAWARE LIMITED PARTNERSHIP
To: LIGHTING SCIENCE GROUP CORPORATION, A DELAWARE CORPORATION; BIOLOGICAL ILLUMINATION, LLC, A DELAWARE LIMITED LIABILITY COMPANY
Reel/Frame 042340/0471 →
SECURITY INTEREST Recorded Nov 3, 2016
From: LIGHTING SCIENCE GROUP CORPORATION; BIOLOGICAL ILLUMINATION, LLC
To: ACF FINCO I LP, AS AGENT
Reel/Frame 040555/0884 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTERESTS IN PATENTS Recorded May 26, 2015
From: FCC, LLC D/B/A FIRST CAPITAL
To: ACF FINCO I LP
Reel/Frame 035774/0632 →
SECURITY INTEREST Recorded Jun 2, 2014
From: LIGHTING SCIENCE GROUP CORPORATION; BIOLOGICAL ILLUMINATION, LLC
To: MEDLEY CAPTIAL CORPORATION, AS AGENT
Reel/Frame 033072/0395 →
SECURITY INTEREST Recorded Apr 28, 2014
From: LIGHTING SCIENCE GROUP CORPORATION; BIOLOGICAL ILLUMINATION, LLC
To: FCC, LLC D/B/A FIRST CAPITAL, AS AGENT
Reel/Frame 032765/0910 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2013
From: MAXIK, FREDRIC S.; BRETSCHNEIDER, ERIC; SOLER, ROBERT R.; BARTINE, DAVID E.
To: LIGHTING SCIENCE GROUP CORPORATION
Reel/Frame 031224/0218 →