Color tuning of a multi-color led based illumination device
US-2016360591-A1 · Dec 8, 2016 · US
Serially-connected light emitting diodes, methods of forming same, and luminaires containing same
US9863588B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9863588-B2 |
| Application number | US-201414338942-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 23, 2014 |
| Priority date | Jan 11, 2013 |
| Publication date | Jan 9, 2018 |
| Grant date | Jan 9, 2018 |
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- Title
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Abstract
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A luminaire comprising a first and second terminal connected to an alternating current power source having a period, a first LED light source electrically coupled to each of the first and second terminals, and a second LED light source electrically coupled to each of the first and second terminals. The first LED light source comprises a first color conversion layer having a first emission latency.
First claim
Opening claim text (preview).
What is claimed is: 1. A luminaire comprising: a first and second terminal connected to an alternating current power source having a period; a first LED light source electrically coupled to each of the first and second terminals; and a second LED light source electrically coupled to each of the first and second terminals; wherein the first LED light source comprises a first color conversion layer having a first emission latency; wherein the second LED light source comprises a second color conversion layer having a second emission latency; and wherein the first emission latency and the second emission latency are non-equivalent latencies produced by the alternating current provided to the first LED light source and the second LED light source; wherein the first emission latency and the second emission latency are asynchronous with a polyphase frequency; and wherein the first emission latency is asynchronous with at least one frequency within a range from 25 Hz to 133 Hz. 2. The luminaire according to claim 1 wherein the first LED light source and the second LED light source include a lighting die comprising multiple semiconductor layers, a conductive material layer, and an active region. 3. The luminaire according to claim 1 wherein the first LED light source is configured to emit light within a first wavelength range corresponding to a first color and the second LED light source is configured to emit light within a second wavelength range corresponding to a second color that is different than the first color. 4. A luminaire comprising: a first and second terminal connected to an alternating current power source having a period; a single lighting die comprising: a first LED light source electrically coupled to each of the first and second terminals; and a second LED light source electrically coupled to each of the first and second terminals; a plurality of trenches; and a substrate; wherein the first LED light source comprises a first color conversion layer having a first emission latency; wherein the second LED light source comprises a second color conversion layer having a second emission latency; and wherein the first emission latency and the second emission latency are non-equivalent latencies produced by the alternating current provided to the first LED light source and the second LED light source; wherein the plurality of trenches are configured to penetrate through the first LED light source, the second LED light source, and the substrate; wherein the first emission latency and the second emission latency are asynchronous with a polyphase frequency.
Assignees
Inventors
Classifications
specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb · CPC title
Apparatus or processes specially adapted to the manufacture of electroluminescent light sources · CPC title
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9863588B2 cover?
- A luminaire comprising a first and second terminal connected to an alternating current power source having a period, a first LED light source electrically coupled to each of the first and second terminals, and a second LED light source electrically coupled to each of the first and second terminals. The first LED light source comprises a first color conversion layer having a first emission latency.
- Who is the assignee on this patent?
- Lighting Science Group Corp
- What technology area does this patent fall under?
- Primary CPC classification F21K9/64. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 09 2018 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).