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US-2024276165-A1 · Aug 15, 2024 · US
Color temperature adjusting method of solid state light emitting device
US2016198534A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016198534-A1 |
| Application number | US-201615067190-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 11, 2016 |
| Priority date | Dec 28, 2011 |
| Publication date | Jul 7, 2016 |
| Grant date | — |
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Abstract
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A color temperature adjusting method of solid state light emitting device, including steps: providing a main light source which emits main light of a first color temperature; providing an adjusting light source, wherein the adjusting light source comprises a red light source, a green light source and a blue light source; and adjusting currents applied to the adjusting light sources to obtain an adjusting light, wherein the adjusting light mixes with the main light of the main light source to obtain an outgoing light of a second color temperature. The second color temperature is different from the first color temperature. The outgoing light has a chromaticity coordinate at a Plank's curve on a CIE 1931 chromaticity coordinates chart.
First claim
Opening claim text (preview).
What is claimed is: 1 . A color temperature adjusting method of solid state light emitting device, comprising: providing a main light source which emits main light of a first color temperature; providing an adjusting light source, wherein the adjusting light source comprises a plurality of red light sources, a plurality of green light sources and a plurality of blue light sources which alternately surround the main light source; and adjusting currents applied to each of the red, green and blue light sources of the adjusting light source to obtain an adjusting light, the adjusting light mixing with the main light of the main light source to obtain an outgoing light of a second color temperature; wherein the second color temperature is different from the first color temperature and wherein a chromaticity coordinate of the outgoing light is at a Plank's curve on a CIE 1931 chromaticity coordinates chart. 2 . The method of claim 1 , wherein the main light of the main light source has a chromaticity coordinate deviating from the Planck's curve on the CIE 1931 chromaticity coordinates chart. 3 . The method of claim 2 , wherein the main light produced by the main light source has a chromaticity coordinate (0.41, 0.43) on the CIE 1931 chromaticity coordinates chart. 4 . The method of claim 3 , wherein the outgoing light has a chromaticity coordinate falling on the Planck's curve at 6500K point.
Assignees
Inventors
Classifications
Controlling the colour of the light · CPC title
Planar light sources · CPC title
comprising a two-dimensional [2D] array of point-like light-generating elements · CPC title
Light-emitting diodes [LED] · CPC title
by selectively switching fixed light sources · CPC title
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- What does patent US2016198534A1 cover?
- A color temperature adjusting method of solid state light emitting device, including steps: providing a main light source which emits main light of a first color temperature; providing an adjusting light source, wherein the adjusting light source comprises a red light source, a green light source and a blue light source; and adjusting currents applied to the adjusting light sources to obtain an…
- Who is the assignee on this patent?
- Hon Hai Prec Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H05B47/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 07 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).