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Light emitting device and lighting system having the same
US9312246B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9312246-B2 |
| Application number | US-201113279878-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 24, 2011 |
| Priority date | Mar 31, 2006 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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Abstract
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The present invention provides a light emitting device comprising a first light emitting portion that emits white light at a color temperature of 6000K or more and a second light emitting portion that emits white light at a color temperature of 3000K or less, which include light emitting diode chips and phosphors and are independently driven. The present invention has an advantage in that a light emitting device can be diversely applied in a desired atmosphere and use by realizing white light with different light spectrums and color temperatures. Particularly, the present invention has the effect on health by adjusting the wavelength of light or the color temperature according to the circadian rhythm of humans.
First claim
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What is claimed is: 1. A lighting system, comprising: a base plate comprising cavities; a plurality of light emitting devices disposed in the cavities; and a molding portion, wherein each of the plurality of light emitting devices consists of a single first light emitting portion and a single second light emitting portion, the single first light emitting portion having a color temperature higher than that of the single second light emitting portion, wherein each of the singl…
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- What does patent US9312246B2 cover?
- The present invention provides a light emitting device comprising a first light emitting portion that emits white light at a color temperature of 6000K or more and a second light emitting portion that emits white light at a color temperature of 3000K or less, which include light emitting diode chips and phosphors and are independently driven. The present invention has an advantage in that a lig…
- Who is the assignee on this patent?
- Roth Gundula, Tews Walter, Lee Chung-Hoon, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification E04H15/50. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Apr 12 2016 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).