Bluish green phosphor and light emitting device package including the same
US-2015377429-A1 · Dec 31, 2015 · US
Semiconductor light-emitting device, exhibit-irradiating illumination device, meat-irradiating illumination device, vegetable-irradiating illumination device, fresh fish-irradiating illumination device, general-purpose illumination device, and semiconductor light-emitting system
US9070843B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9070843-B2 |
| Application number | US-201313918514-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 14, 2013 |
| Priority date | Jun 3, 2011 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
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The present invention provides a semiconductor light-emitting device which emits light with high chroma, and an exhibit-irradiating illumination device, a meat-irradiating illumination device, a vegetable-irradiating illumination device, a fresh fish-irradiating illumination device, a general-purpose illumination device, and a semiconductor light-emitting system which include the semiconductor light-emitting device. A semiconductor light-emitting device 1 comprises an LED chip 10 as a semiconductor light-emitting element and a phosphor 20 which uses the LED chip 10 as an excitation source to emit light. The phosphor contains at least a green phosphor and a red phosphor, and a value of intensity of light with a wavelength of 660 nm in a spectrum of beam-normalized light emitted from the semiconductor light-emitting device 1 is 170% or more and 300% or less of a value of intensity of light with a wavelength of 660 nm in a spectrum of beam-normalized reference light for color rendering evaluation.
First claim
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The invention claimed is: 1. A semiconductor light-emitting device comprising: a semiconductor light-emitting element; and a phosphor which uses the semiconductor light-emitting element as an excitation source to emit light, wherein the phosphor contains at least a broadband green phosphor and a broadband red phosphor; the broadband red phosphor comprises at least one type selected from the group consisting of CaAlSi(N,O) 3 :Eu, (Sr,Ca)AlSi(N,O) 3 :Eu and (Ca,Sr,Ba)AlSi(N,O)…
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Electricity · mapped topic
- C09K11/77347Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9070843B2 cover?
- The present invention provides a semiconductor light-emitting device which emits light with high chroma, and an exhibit-irradiating illumination device, a meat-irradiating illumination device, a vegetable-irradiating illumination device, a fresh fish-irradiating illumination device, a general-purpose illumination device, and a semiconductor light-emitting system which include the semiconductor …
- Who is the assignee on this patent?
- Mitsubishi Chem Corp
- What technology area does this patent fall under?
- Primary CPC classification C09K11/77347. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 30 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).