White light source
US-2019088833-A1 · Mar 21, 2019 · US
Light-emitting system for healthy lighting, light bar and light apparatus
US11732872B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11732872-B2 |
| Application number | US-201917607046-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 12, 2019 |
| Priority date | Apr 29, 2019 |
| Publication date | Aug 22, 2023 |
| Grant date | Aug 22, 2023 |
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- Title
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Abstract
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A light-emitting system for healthy lighting, a light bar and a light fixture, wherein they are applied to the field of lighting and can emit white light with a color temperature range of 2700 K to 6500 K. A relative spectral power of the light-emitting system is set to be ϕ (λ), and a relative spectral power distribution of a solar spectral curve corresponding to the color temperature is set to be S (λ). The white light has a first characteristic waveband, and a wavelength region of the first characteristic waveband is 380-405 nm. The white light has a second characteristic waveband, and a wavelength region of the second characteristic waveband is 415-455 nm. The white light has a third characteristic waveband, and a wavelength region of the third characteristic waveband is 465-495 nm.
First claim
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What is claimed is: 1. A light-emitting system for healthy lighting, wherein the light-emitting system is able to emit white light in a color temperature range of 2700 K-6500 K, and a relative spectral power of the light-emitting system is set to be ϕ (λ), and a relative spectral power distribution of a solar spectral curve corresponding to the color temperature is set to be S (λ), wherein the solar spectral curve is a black body radiation curve corresponding to the color temperature when the color temperature is ≥2700 K and <5000 K, the solar spectral curve is a CIE standard illuminant D curve corresponding to the color temperature when the color temperature is ≥5000 K and ≤6500 K, the white light has a first characteristic waveband, a wavelength region of the first characteristic waveband is 380 nm-405 nm, the white light has a second characteristic waveband, a wavelength region of the second characteristic waveband is 415 nm-455 nm, the white light has a third characteristic waveband, a wavelength region of the third characteristic waveband is 465 nm-495 nm, and the first characteristic waveband and the second characteristic waveband satisfy: ∫ 380 405 Φ(λ) dλ/∫ 380 780 Φ(λ) dλ≤ 1%, ∫ 415 455 Φ(λ) dλ/∫ 380 780 Φ(λ) dλ≤ 15%; normalizing is performed on the third characteristic waveband to satisfy: 70 % ≤ ∫ 4 6 5 4 9 5 Φ ( λ ) Φ ( λ 5 5 5 ) d λ / ∫ 4 6 5 4 9 5 S ( λ ) S ( λ 5 5 5 ) d λ ≤ 120 % ; wherein ϕ (λ 555 ) denotes a relative spectral power of the light-emitting system when the wavelength λ is 555 nm, and S (λ 555 ) denotes a relative spectral power of the solar spectral curve when the wavelength λ is 555 nm. 2. The lighting-emitting system for health lighting as claimed in claim 1 , wherein the first characteristic waveband further satisfies: ∫ 380 405 Φ(λ) dλ/∫ 380 780 Φ(λ) dλ≤ 0.5%; 3. The light-emitting system for healthy lighting as claimed in claim 1 , wherein the second characteristic waveband further satisfies: ∫ 415 455 Φ(λ) dλ/∫ 380 780 Φ(λ) dλ≤ 10%. 4. The light-emitting system for healthy lighting as claimed in claim 1 , wherein the third characteristic waveband further satisfies: 80 % ≤ ∫ 4 6 5 4 9 5 Φ ( λ ) Φ ( λ 5 5 5 ) d λ / ∫ 4 6 5 4 9
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Classifications
Package configurations · CPC title
having two or more wavelength conversion materials · CPC title
Wavelength conversion materials · CPC title
- F21V9/30Primary
Elements containing photoluminescent material distinct from or spaced from the light source (shades F21V1/17; globes, bowls or cover glasses F21V3/08, F21V3/12; refractors F21V5/10; reflectors F21V7/26, F21V7/30; elements with provision for controlling the spectral properties or intensity F21V9/40) · CPC title
rigid, e.g. LED bars · CPC title
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- What does patent US11732872B2 cover?
- A light-emitting system for healthy lighting, a light bar and a light fixture, wherein they are applied to the field of lighting and can emit white light with a color temperature range of 2700 K to 6500 K. A relative spectral power of the light-emitting system is set to be ϕ (λ), and a relative spectral power distribution of a solar spectral curve corresponding to the color temperature is set t…
- Who is the assignee on this patent?
- Foshan Nationstar Optoelectronics Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F21V9/30. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 22 2023 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).