SOLID-STATE LINEAR LIGHTING ARRANGEMENTS INCLUDING LIGHT EMITTING PHOSPHOR

• US 20140306599A1
• Filed: 01/16/2014
• Published: 10/16/2014
• Est. Priority Date: 08/03/2006
• Status: Abandoned Application

• Current Assignee: Intematix Corporation
• Original Assignee: Intematix Corporation
• Inventors: Edwards, Charles, Lee, Hyung-Chul, Li, Yi-Qun, Yang, Haitao
• Application Number:
  US14/157,501
• Publication Number:
  US 20140306599A1
• Time in Patent Office: Days
• US Class Current: 313/502
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• CPC Class Codes: F21V 13/02 Combinations of only two kinds of elements
• CPC Class Codes: F21V 13/14 the elements being filters or photoluminescent elements, reflectors and refractors
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21V 3/12 the coatings comprising photoluminescent substances
• CPC Class Codes: F21V 5/041 Ball lenses
• CPC Class Codes: F21V 5/043 the lens having cylindrical faces, e.g. rod lenses, toric lenses
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21V 9/30 Elements containing photoluminescent material distinct from or spaced from the light source shades F21V1/17; globes, bowls or cover glasses F21V3/08, F21V3/12; refractors F21V5/10; reflectors F21V7/26, F21V7/30; elements with provision for controlling the spectral properties or intensity F21V9/40
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F21Y 2115/30 Semiconductor lasers

Abstract

A solid-state linear lamp comprises a co-extruded component, the co-extruded component comprising a photoluminescent portion and a support body, where the photoluminescent portion is integrally formed with the support body. The co-extruded component is formed to comprise an interior cavity for receiving insertion of a substrate having one or more light emitters. The array of solid-state light emitters is configured to emit light into the elongate interior cavity.

Claims

1. A lamp component, comprising:

a co-extruded component, the co-extruded component comprising a photoluminescent portion that is integrally formed with a support body;

the photoluminescent portion comprising at least one photoluminescent material;

the support body comprising support body material, wherein the photoluminescent material and the support body material being co-extruded together to form the co-extruded component; and

the co-extruded component comprising an interior cavity for receiving a substrate having one or more light emitting diodes.

2. The lamp component of claim 1, wherein the interior cavity within the co-extruded component is resiliently flexible.

3. The lamp component of claim 1, wherein the support body comprises a shoulder having an upper portion and a lower portion, and further comprises a gap between the upper portion and the lower portion.

4. The lamp component of claim 3, wherein the substrate is mountable within the interior cavity by having an end portion of the substrate being pinched between the upper portion and the lower portion of the shoulder.

5. The lamp component of claim 3, wherein the substrate is mountable within the interior cavity by having the substrate being tension fit against the upper portion of the shoulder and a lower surface of the support body.

6. The lamp component of claim 1, wherein at least one wall within the interior cavity positions the substrate.

7. The lamp component of claim 1, wherein the photoluminescent portion comprises a generally semi-circular or dome-shaped cross-sectional profile.

8. The lamp component of claim 1, further comprising an exterior cover.

9. The lamp component of claim 8, wherein material for the exterior cover is co-extruded together with the photoluminescent material and the support body material to form the co-extruded component.

10. The lamp component of claim 8, wherein the exterior cover forms a tubular shape.

11. The lamp component of claim 1, further comprising a diffusing material.

12. The lamp component of claim 11, wherein the diffusing material is located within the photoluminescent portion, an exterior cover, an optical medium or an exterior layer of the lamp component.

13. The lamp component of claim 1, further comprising an optical medium within the co-extruded component.

14. The lamp component of claim 13, wherein the optical medium is co-extruded with other materials of the co-extruded component.

15. A linear lighting arrangement, comprising:

a co-extruded component, the co-extruded component comprising a photoluminescent portion that is integrally formed with a support body, the photoluminescent portion comprising at least one photoluminescent material and the support body comprising support body material; and

a substrate having one or more light emitting diodes that is received within the co-extruded component.

16. The linear lighting arrangement of claim 15, wherein the support body comprises a shoulder having an upper portion and a lower portion, and further comprises a gap between the upper portion and the lower portion.

17. The linear lighting arrangement of claim 15, wherein the substrate is tension fit within the co-extruded component.

18. The linear lighting arrangement of claim 15, wherein the photoluminescent portion comprises a generally semi-circular or dome-shaped cross-sectional profile.

19. The linear lighting arrangement of claim 15, further comprising an exterior cover.

20. The linear lighting arrangement of claim 19, wherein material for the exterior cover is co-extruded together with the photoluminescent material and the support body material to form the co-extruded component.

21. The linear lighting arrangement of claim 19, wherein the exterior cover is a separately manufactured component from the co-extruded component.

22. The linear lighting arrangement of claim 19, wherein the exterior cover forms a tubular shape.

23. The linear lighting arrangement of claim 15, further comprising a diffusing material.

24. The linear lighting arrangement of claim 23, wherein the diffusing material is located within the photoluminescent portion, an exterior cover, an optical medium or an exterior layer of the co-extruded component.

25. The linear lighting arrangement of claim 15, further comprising an optical medium within the co-extruded component.

26. A method of fabricating an optical component, comprising co-extruding an elongated solid body having a photoluminescent portion and a support body, wherein the photoluminescent portion is integrally formed with the support body, and wherein the co-extruded component is formed to comprise an interior cavity for receiving a substrate having one or more light emitting diodes.

27. The method of claim 26, in which multiple separate extruders are employed to extrude materials of the photoluminescent portion and the support body.

28. The method of claim 26, in which the materials operated upon by the extruders include at least one of Polycarbonate, Poly(methyl methacrylate), Polyethylene Terephthalate, and thermoform plastics.

29. The method of claim 26, further comprising co-extruding an exterior cover.

30. The method of claim 26, further comprising co-extruding a light diffusive portion.

31. The method of claim 26, further comprising performing an in-line process control to control deposition of materials for the photoluminescent portion.