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US-2015369454-A1 · Dec 24, 2015 · US
LED-based illumination modules with PTFE color converting surfaces
US8944618B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944618-B2 |
| Application number | US-201213559522-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 26, 2012 |
| Priority date | Sep 7, 2010 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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An illumination module includes a plurality of Light Emitting Diodes (LEDs) and a light conversion sub-assembly mounted near but physically separated from the LEDs. The light conversion sub-assembly includes at least a portion that is a polytetrafluoroethylene (PTFE) material that also includes a wavelength converting material. Despite being less reflective than other materials that may be used in the light conversion sub-assembly, the PTFE material unexpectedly produces an increase in luminous output, compared to other more reflective materials, when the PTFE material includes a wavelength converting material.
First claim
Opening claim text (preview).
What is claimed is: 1. An LED based illumination device comprising: a light source sub-assembly having a plurality of Light Emitting Diodes (LEDs) mounted on an LED mounting board; and a light conversion sub-assembly configured to mix and color convert light emitted from the light source sub-assembly, wherein a first portion of the light conversion sub-assembly is a polytetrafluoroethylene (PTFE) material, wherein the first portion includes a bottom reflector disposed over the L…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F21K9/62Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8944618B2 cover?
- An illumination module includes a plurality of Light Emitting Diodes (LEDs) and a light conversion sub-assembly mounted near but physically separated from the LEDs. The light conversion sub-assembly includes at least a portion that is a polytetrafluoroethylene (PTFE) material that also includes a wavelength converting material. Despite being less reflective than other materials that may be used…
- Who is the assignee on this patent?
- Tseng Peter K, Harbers Gerard, Xicato Inc
- What technology area does this patent fall under?
- Primary CPC classification F21K9/62. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 03 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).