Solid-state linear lighting arrangements including light emitting phosphor

Patent metadata

Field	Value
Publication number	US-10274166-B2
Application number	US-201715653071-A
Country	US
Kind code	B2
Filing date	Jul 18, 2017
Priority date	Aug 3, 2006
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

A solid-state linear lamp comprises a co-extruded component, the co-extruded component comprising an elongate lens and a layer of photoluminescent material. The elongate lens is for shaping light emitted from the lamp and comprises an elongate interior cavity. The layer of a photoluminescent material is located on an interior wall of the elongate interior cavity. The lamp further comprises an array of solid-state light emitters configured to emit light into the elongate interior cavity.

First claim

What is claimed is:

1. A lamp comprising:
a component comprising an elongate optical component that comprises an elongate interior cavity and a layer of photoluminescent material that is on an interior wall of the elongate interior cavity and
an array of solid-state light emitters configured to emit light into the elongate interior cavity;
wherein the elongate optical component and the layer of photoluminescent material are simultaneously created and manufactured together by co-extrusion to form a co-extruded structure having the elongate interior cavity.

2. The lamp of claim 1 , wherein the elongate optical component corresponds to a curved exterior wall.

3. The lamp of claim 2 , wherein the curved exterior wall comprises a generally semicircular cross-sectional profile.

4. The lamp of claim 1 , wherein the interior wall of the elongate interior cavity corresponds to generally curved interior wall.

5. The lamp of claim 4 , wherein the layer of the photoluminescent material comprises a generally conical, semi-circular or dome-shaped cross-sectional profile.

6. The lamp of claim 1 , wherein the component comprises a slot for receiving a circuit board having the array of solid-state light emitters.

7. The lamp of claim 1 , further comprising a diffusing material, and wherein the elongate optical component, the layer of photoluminescent material and the diffusing material are simultaneously created and manufactured together by co-extrusion to form the co-extruded structure having the elongate interior cavity.

8. The lamp of claim 7 , wherein the diffusing material comprises an exterior layer of material on the elongate optical component.

9. The lamp of claim 7 , wherein the diffusing material is incorporated within the optical component and/or the layer of the photoluminescent material.

10. The lamp of claim 1 , further comprising a reflector comprising a reflective surface to reflect light emitted through the elongate optical component, wherein the elongate optical component, the layer of photoluminescent material and the reflector are simultaneously created and manufactured together by co-extrusion to form the co-extruded structure having the elongate interior cavity.

11. The lamp of claim 10 , wherein the reflector extends away from a central portion of the component.

12. The lamp of claim 1 , further comprising an optical medium within the elongate interior cavity, and wherein the elongate optical component, the layer of photoluminescent material and the optical medium are simultaneously created and manufactured together by co-extrusion to form the co-extruded structure having the elongate interior cavity.

13. The lamp of claim 1 , wherein the elongate optical component is a lens.

14. The lamp of claim 1 , wherein the co-extruded structure is affixed to the array of solid-state light emitters during extrusion.

15. The lamp of claim 1 , wherein a wavelength conversion layer and/or an optical component layer comprise at least one of PC-Polycarbonate, PMMA-Poly(methyl methacrylate), PET-Polyethylene Terephthalate, and thermoform plastics.

16. The lamp of claim 1 , wherein an exterior length of the elongate optical component is at least two times the length of the layer of photoluminescent material.

Assignees

• Intematix Corp

Inventors

• Li Yi-Qun
• Yang Haitao
• Lee Hyung-Chul
• Edwards Charles

Classifications

• F21K9/232 Primary

  specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb · CPC title

• F21Y2103/10

  comprising a linear array of point-like light-generating elements · CPC title

• F21V3/02

  characterised by the shape · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V5/041

  Ball lenses · CPC title