LED lighting arrangement including light emitting phosphor

• US 9,595,644 B2
• Filed: 06/01/2015
• Issued: 03/14/2017
• Est. Priority Date: 08/03/2006
• Status: Active Grant

• Current Assignee: Intematix Corporation
• Original Assignee: Intematix Corporation
• Inventors: Li, Yi-Qun
• Primary Examiner(s): HINES, ANNE M
• Application Number:
  US14/727,814
• Publication Number:
  US 20160141461A1
• Time in Patent Office: 652 Days
• Field of Search: 313498-512
• US Class Current: 1/1
• CPC Class Codes: C09K 11/0883 Arsenides; Nitrides; Phosphides
• CPC Class Codes: C09K 11/77342 Silicates
• CPC Class Codes: C09K 11/7741 Sulfates
• CPC Class Codes: C09K 11/7774 Aluminates
• CPC Class Codes: F21V 13/14 the elements being filters or photoluminescent elements, reflectors and refractors
• CPC Class Codes: F21V 3/12 the coatings comprising photoluminescent substances
• CPC Class Codes: F21V 5/041 Ball lenses
• CPC Class Codes: F21V 5/10 comprising photoluminescent material
• 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]
• CPC Class Codes: F21Y 2115/30 Semiconductor lasers
• CPC Class Codes: H01L 2933/0041 relating to wavelength conversion elements
• CPC Class Codes: H01L 33/502 Wavelength conversion materials
• CPC Class Codes: Y10T 428/13 Hollow or container type article [e.g., tube, vase, etc.]
• CPC Class Codes: Y10T 428/24479 including variation in thickness
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31511 Of epoxy ether
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

A method of manufacturing an LED lighting arrangement, comprises: receiving an optical component having a diffusing material that is light diffusive and at least one photoluminescent material that is excitable by light of a first wavelength range and which emits light of a second wavelength range; receiving an LED assembly that is operable to generate the light of the first wavelength range and mounting the optical component to the LED assembly to form the LED lighting arrangement. The optical component having the diffusing and photoluminescent materials is mass produced separately from the LED assembly and can be selected such that light generated by the optical component combined with the light generated by the LED assembly corresponds to light of a selected color. Also disclosed are LED lighting arrangements, components for LED lighting arrangements and methods of fabricating an optical component.

Claims

1. A method of manufacturing an LED lighting arrangement, comprising:

receiving an optical component having a diffusing material and at least one photoluminescent material, wherein the diffusing material is light diffusive and the photoluminescent material is excitable by light of a first wavelength range and which emits light of a second wavelength range;

receiving an LED assembly that is operable to generate the light of the first wavelength range, wherein the optical component having the diffusing and photoluminescent materials is mass produced separately from the LED assembly; and

mounting the optical component to the LED assembly to form the LED lighting arrangement.

2. The method of claim 1, and further comprising selecting the optical component such that light generated by the optical component combined with the light generated by the LED assembly corresponds to light of a selected color.

3. The method of claim 1, and wherein the optical component comprises a transparent material that incorporates at least one of the diffusing and photoluminescent materials.

4. The method of claim 1, and wherein the optical component comprises a transparent material having a surface, and wherein the optical component is mass produced by depositing as a layer on the optical component at least one of the diffusing and photoluminescent materials.

5. The method of claim 4, and wherein the diffusing material is selected from the group consisting of:

being deposited in a separate layer from the photoluminescent material layer;

being deposited in the photoluminescent material layer; and

combinations thereof.

6. The method of claim 4, and wherein at least one of the diffusing and photoluminescent material is deposited using an approach selected from the group consisting of:

spraying;

dropping;

printing;

painting;

spin coating; and

tape casting.

7. The method of claim 4, and wherein at least one of the diffusing and photoluminescent materials is deposited on at least a part of the inner or outer surfaces of the transparent material and wherein the transparent material is selected from the group consisting of:

a planar surface, a convex surface, a concave surface;

a substantially spherical shell;

a hollow cylinder; and

a substantially hemispherical shell.

8. A method of manufacturing an optical component, comprising:

fabricating an optical component having a diffusing material and at least one photoluminescent material, wherein the diffusing material is light diffusive and the photoluminescent material is excitable by light of a first wavelength range and which emits light of a second wavelength range;

wherein the optical component is mass produced separately from an LED assembly that is operable to generate the light of the first wavelength range, and the optical component is mountable to the LED assembly to form a LED lighting arrangement.

9. The method of claim 8, and comprising

receiving a transparent material having a planar surface;

depositing the diffusing and photoluminescent materials on the planar surface; and

separating the transparent material into individual optical components.

10. The method of claim 9, and wherein the planar surface is common to multiple components.

11. The method of claim 8, and comprising incorporating within a transparent material comprising the optical component at least one of the diffusing and photoluminescent materials.

12. The method of claim 8, and comprising

receiving a transparent material having a surface and

depositing as a layer on the optical component at least one of the diffusing and photoluminescent materials.

13. The method of claim 12, and wherein the light diffusing material is selected from the group consisting of:

being deposited in a separate layer from the photoluminescent material layer;

being deposited in the photoluminescent material layer; and

combinations thereof.

14. The method of claim 12, and comprising depositing at least one the diffusing and photoluminescent materials using an approach selected from the group consisting of:

spraying;

dropping;

printing;

painting;

spin coating; and

tape casting.

15. The method of claim 12, and comprising depositing at least one of the diffusing and photoluminescent materials on at least a part of the inner or outer surfaces of the transparent material and wherein the transparent material is selected from the group consisting of:

a planar surface, a convex surface, a concave surface;

a substantially spherical shell;

a hollow cylinder; and

a substantially hemispherical shell.