COLOR TEMPERATURE TUNABLE AND DIMMABLE SOLID-STATE LINEAR LIGHTING ARRANGEMENTS

• US 20160186968A1
• Filed: 12/08/2015
• Published: 06/30/2016
• Est. Priority Date: 12/08/2014
• Status: Active Grant

• Current Assignee: Intematix Corporation
• Original Assignee: Intematix Corporation
• Inventors: Edwards, Charles
• Granted Patent: US 9,995,440 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21K 9/64 using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
• 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]

Abstract

A solid-state linear lamp comprises a co-extruded component, the co-extruded component comprising multiple photoluminescence portions corresponding to different color temperatures, a diffuser portion, and a top portion, where the photoluminescence portion, the diffuser portion, and the top portion are integrally formed into the co-extruded component.

Claims

1. A light arrangement, comprising:

an elongate solid-state light source having multiple elongate arrays of solid-state light emitters; and

an elongate optical component, the elongate optical component comprising multiple wavelength conversion regions having a first region that corresponds to a first color temperature and a second region that corresponds to a second color temperature, the first region corresponding to a first elongate array of solid-state light emitters and the second region corresponding to a second elongate array of solid-state light emitters;

wherein an emission product of the light arrangement is a combination of first region emissions generated by the first region, second region emissions generated by the second region, and light source emissions generated by the elongate solid-state light source.

4. The light arrangement of claim 1, wherein the optical component comprises a diffuser portion having a light diffusive material.

5. The light arrangement of claim 1, wherein the elongate optical component is an integrally formed component having the multiple wavelength conversion regions and a diffuser portion.

6. The light arrangement of claim 5, wherein the multiple wavelength conversion regions and the diffuser portion are co-extruded portions.

7. The light arrangement of claim 1, further comprising:

a control circuit to control distribution of power to the multiple elongate arrays of solid-state light emitters.

8. The light arrangement of claim 7, wherein the control circuit is operable to change relative contributions of the first and second regions to light emissions by the light arrangement, such that an overall color temperature of the light arrangement changes in response to dimming of the light arrangement.

9. The light arrangement of claim 8, wherein the dimmer switch and the color temperature control circuit correspond to separate control mechanisms.

10. The light arrangement of claim 8, wherein a single control mechanism is provided that controls both the dimmer switch and the color temperature control circuit.

11. The light arrangement of claim 1, wherein second region comprises two portions, and the first region is located at the center of the elongate optical component between the two portions of the second region.

12. The light arrangement of claim 1, wherein light generated by the first region is warm white and light generated by the second region is cool white.

13. The light arrangement of claim 1, wherein a control circuit proportionally applies power to the multiple elongate arrays of solid-state light emitters to dim the light emitting device.

18. The light arrangement of claim 1, further comprising a diffuser portion having a light diffusive material.

19. The light arrangement of claim 18, wherein the first elongate wavelength conversion region, the second elongate wavelength conversion region, and the diffuser portion are integrally formed.

20. The light arrangement of claim 1, further comprising a reflector portion having a light reflective material.

2. The light arrangement of claim 2, wherein the elongate optical component is hollow.

3. The light arrangement of claim 2, wherein the multiple wavelength conversion regions project into the interior of the optical component.

14. An optical component, comprising:

an first elongate wavelength conversion region having a first composition of photo-luminescent materials; and

a second elongate wavelength conversion region having a second composition of photo-luminescent materials;

wherein the first composition of photo-luminescent materials and the second composition of photo-luminescent materials generate light having different color temperatures.

15. The optical component of claim 14, wherein second elongate wavelength conversion region comprises two portions, and the first elongate wavelength conversion region is located between the two portions of the second elongate wavelength conversion region.

16. The optical component of claim 14, wherein light generated by the first elongate wavelength conversion region is warm white and light generated by the second elongate wavelength conversion region is cool white.

17. The optical component of claim 14, wherein the optical component is hollow, and the first and second wavelength conversion regions project into an interior of the optical component.