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US-2017288097-A1 · Oct 5, 2017 · US
Composite material for lighting filtering, lighting apparatus, and method for determining doping concentration or thickness of composite material
US10830398B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10830398-B2 |
| Application number | US-201616061479-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2016 |
| Priority date | Dec 29, 2015 |
| Publication date | Nov 10, 2020 |
| Grant date | Nov 10, 2020 |
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- Title
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Abstract
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A composite material (11,21) for light filtering, comprising: a polymeric matrix material and particles of neodymium compound doped in the polymeric matrix material. A lighting apparatus (10,20) comprises the composite material. A method for determining a doping concentration of particles of neodymium compound in the composite material, and a method for determining a thickness of the composite material are also described.
First claim
Opening claim text (preview).
What is claimed is: 1. A lighting apparatus, comprising: a white LED package capable of generating a yellow light, the LED package comprising a blue light source with a peak wavelength less than 435 nm and a phosphor; and an optical component, wherein at least part of the yellow light generated by the white LED package is filtered by the optical component, and wherein the optical component comprises a composite material having a polymeric matrix material and particles of neodymium compound doped in the polymeric matrix material, and a weight percentage of the particles of neodymium compound in the polymeric matrix material is from 0.4% to 8%. 2. The lighting apparatus of claim 1 , wherein the peak wavelength of the blue light source is less than 430 nm. 3. The lighting apparatus of claim 2 , wherein the range of the peak wavelength of the blue light source is from 420 nm to 430 nm. 4. The lighting apparatus of claim 1 , wherein the weight percentage of the particles of neodymium compound in the polymeric matrix material is from 2% to 8%. 5. The lighting apparatus of claim 4 , wherein the weight percentage of the particles of neodymium compound in the polymeric matrix material is from 4% to 6%. 6. The lighting apparatus of claim 1 , wherein the thickness of the optical component ranges from 1 mm to 14 mm. 7. The lighting apparatus of claim 6 , wherein the thickness of the optical component ranges from 1 mm to 9 mm. 8. The lighting apparatus of claim 1 , comprising: particles of additive doped in the polymeric matrix material for light diffusion. 9. The lighting apparatus of claim 1 , wherein the difference of refractive indices of the polymeric matrix material and the particles of neodymium compound is less than 0.1 in the visible light region.
Assignees
Inventors
Classifications
Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps · CPC title
Wavelength conversion materials · CPC title
- H10H20/8511Primary
characterised by their material, e.g. binder · CPC title
characterised by their material, e.g. epoxy or silicone resins · CPC title
- G02B5/206Primary
comprising particles embedded in a solid matrix · CPC title
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- What does patent US10830398B2 cover?
- A composite material (11,21) for light filtering, comprising: a polymeric matrix material and particles of neodymium compound doped in the polymeric matrix material. A lighting apparatus (10,20) comprises the composite material. A method for determining a doping concentration of particles of neodymium compound in the composite material, and a method for determining a thickness of the composite …
- Who is the assignee on this patent?
- Ge Lighting Solutions Llc, Consumer Lighting Us Llc
- What technology area does this patent fall under?
- Primary CPC classification H10H20/8511. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 10 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).