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Color temperature adjusting method of solid state light emitting device and solid state light emitting device using the method
US9320109B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9320109-B2 |
| Application number | US-201213677210-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 14, 2012 |
| Priority date | Dec 28, 2011 |
| Publication date | Apr 19, 2016 |
| Grant date | Apr 19, 2016 |
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- Title
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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 sources consisting of at least two sub-main light sources emitting lights of different color temperatures; adjusting currents applied to the at least two sub-main light sources to obtain a mixed emitting light; and providing an adjusting light source comprising a red light source, a green light source and a blue light source; adjusting current e…
Assignees
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Classifications
Electricity · mapped topic
Mechanical Engineering · mapped topic
- H05B47/10Primary
Electricity · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9320109B2 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?
- Lai Chih-Chen, 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 Tue Apr 19 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).