CN102623624B - Light-emitting device and light-emitting method thereof - Google Patents
Light-emitting device and light-emitting method thereof Download PDFInfo
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- CN102623624B CN102623624B CN201210022074.6A CN201210022074A CN102623624B CN 102623624 B CN102623624 B CN 102623624B CN 201210022074 A CN201210022074 A CN 201210022074A CN 102623624 B CN102623624 B CN 102623624B
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Abstract
The invention discloses a light-emitting device and a light-emitting method thereof. The light-emitting device comprises at least two light-emitting sub-modules, a reflection cavity is formed between the light-emitting sub-modules, the front surface of each light-emitting sub-module faces the reflection cavity, and each light-emitting sub-module comprises a substrate and a reflection layer which are sequentially fixed, wherein the reflection layer serves as the front surface of the light-emitting sub-module and faces the reflection cavity. At least one light-emitting sub-module is provided with at least one LED light source and a fluorescence conversion layer, the LED light sources are fixedly connected onto the substrate and face the reflection cavity, the fluorescence conversion layer is coated on the corresponding reflection layer, and at least one light-emitting sub-module comprises at least one light transmission area. By the aid of the light-emitting device and the light-emitting method, light rays after one-time or repeated diffuse reflection are mutually mixed in the reflection cavity and then shot out, so that the shot out light rays are mixed more uniformly.
Description
Technical field
The present invention relates to a kind of light-emitting device and luminescent method thereof.
Background technology
First, need to illustrate, white light is a kind of complex light, needs jointly to be made up of multiple spectrum.From spectral distribution angle, there are three kinds of formula, the first formula, blue light+gold-tinted=white light; The second formula, blue light+green glow+ruddiness (+gold-tinted)=white light; The third formula, blue light+gold-tinted+ruddiness=white light.
Day Asia (Nichia) company of Japan obtains White-light LED illumination license the earliest, and the patent No. is US5998925, and this patent can in brief: blue light LED light source+yellow fluorescent powder=white LED light source, i.e. first kind of way.Mitsubishi Chemical is in the patent application of US2007007494A1 at publication number, adds green emitting phosphor and red fluorescence powder to form white light, i.e. the second way at yellow fluorescent powder.Further, other companies still adopt the second formula to apply for a patent, but the generation of green glow and ruddiness, be produced by green LED and red LED, but not be stimulated generation by fluorescent material.
In prior art, the light of light source is all directly through fluorescent material injection, but the light mixed effect of this light source injection is even not.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, a kind of light-emitting device and luminescent method thereof are provided, through once or repeatedly irreflexive light in injection after mixing mutually in reflection chamber, make the light mixing penetrated more even.
The technical solution adopted for the present invention to solve the technical problems is: a kind of light-emitting device, comprise at least two luminous submodules, between luminous submodule, form reflection chamber and the front of each luminous submodule all towards reflection chamber, described each luminous submodule includes substrate and reflector, and sequentially fix between substrate and reflector, wherein, reflector as luminous submodule just facing to reflection chamber; At least one luminous submodule is provided with at least one LED light source, described LED light source to be fixed on described substrate and towards reflection chamber, at least one luminous submodule is provided with fluorescence conversion layer, described fluorescence conversion layer is coated on reflector, and at least one luminous submodule comprises at least one transmission region.
Described subregion, reflector is coated with fluorescence conversion layer.
Described LED light source at least sends a kind of light of color, and described LED light source sends the wave-length coverage of light at 200nm ~ 700nm.
Described fluorescence conversion layer at least comprises a kind of fluorescence converters, and described fluorescence converters is the combination of a kind of in rare earth fluorescent powder material, quanta point material or two kinds.
Described substrate is placed with circuit layer, and the electrode of described LED light source is connected with described circuit layer.
The first illumination that described LED light source sends is mapped on fluorescence conversion layer, a part for the first light is absorbed by fluorescence conversion layer and launches the second light, another part of the second light and the first described light is all irradiated on reflector through fluorescence conversion layer, penetrates from described transmission region through diffuse reflection once or repeatedly.
The wave-length coverage of the first described light is at 200nm ~ 700nm.
The wave-length coverage of described the second light is at 200nm ~ 700nm.
The invention has the beneficial effects as follows:
The first, through once or repeatedly irreflexive light in injection after mixing mutually in reflection chamber, make the light mixing penetrated more even;
Second, because reflection chamber carries open transmission region, so air-flow can accelerate flowing in reflection chamber, utilize air transmitted to dispel the heat, the basis of mixed light eliminates heavy Aluminium Radiator, not only make LED light source temperature decline, reach and improve performance and the object in life-span, saved cost simultaneously;
3rd, fluorescence conversion layer does not directly contact with the PN junction of LED light source, so the temperature of fluorescence conversion layer can not rise along with the temperature of LED light source and improve.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of light-emitting device of the present invention and luminescent method thereof are not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is the structural representation of the embodiment of the present invention 3;
Fig. 4 is the structural representation of the embodiment of the present invention 4;
Fig. 5 is the structural representation of the embodiment of the present invention 5.
Embodiment
Embodiment 1, shown in Figure 1, a kind of light-emitting device of the present invention, comprise the first luminous submodule 1 and the second luminous submodule 2, between the described first luminous submodule 1 and the described second luminous submodule 2, form reflection chamber 3 and the front of the first luminous submodule 1 and the second luminous submodule 2 all towards reflection chamber 3, described first luminous submodule 1 and the second luminous submodule 2 include substrate 4 and reflector 5, and sequentially fix between substrate 4 and reflector 5, wherein, reflector 5 as the front of the first luminous submodule 1 and the second luminous submodule 2 all towards reflection chamber 3, described first luminous submodule 1 is provided with two LED light sources 7, described second luminous submodule 2 is provided with a LED light source 7, described LED light source 7 to be fixed on described substrate 4 and towards reflection chamber 3, described first luminous submodule 1 and the second luminous submodule 2 are equipped with fluorescence conversion layer 6, described fluorescence conversion layer 6 is coated on reflector 5, and the described first luminous submodule 1 and the second luminous submodule 2 all comprise two transmission regions 8.
Described LED light source at least sends a kind of light of color, and described LED light source sends the wave-length coverage of light at 200nm ~ 700nm.In the present embodiment 1, described LED light source 7 sends blue light.But, described LED light source send light color can according to product need select.
Described fluorescence conversion layer 6 at least comprises a kind of fluorescence converters, and described fluorescence converters is the combination of a kind of in rare earth fluorescent powder material, quanta point material or two kinds.In the present embodiment 1, described fluorescence conversion layer 6 is fluorescence converters and transparent filling glue mixture.
Described substrate 4 is placed with circuit layer, and the electrode of described LED light source 7 is connected with described circuit layer.
A kind of luminescent method of the present invention, the first illumination that described LED light source 7 sends is mapped on fluorescence conversion layer 6, a part for the first light is absorbed by fluorescence conversion layer 6 and launches the second light, another part of the second light and the first described light is all irradiated on reflector 5 through fluorescence conversion layer 6, penetrates from described transmission region 8 through diffuse reflection once or repeatedly.
The wave-length coverage of the first described light is at 200nm ~ 700nm.
The wave-length coverage of described the second light is at 200nm ~ 700nm.
The first light sent with described LED light source 7 is for blue light, described fluorescence conversion layer 6 is yellow fluorescent powder and transparent filling glue mixture is example, a kind of luminescent method of the present invention is described: described LED light source 7 launches blue light 9, blue light 9 is irradiated on fluorescence conversion layer 6, a part for blue light 9 is absorbed by fluorescence conversion layer 6 and launches the second light, the second light is gold-tinted, another part of gold-tinted and blue light 9 is all irradiated on reflector 5 through fluorescence conversion layer 6, launch white light 10, white light 10 penetrates from described transmission region 8 through diffuse reflection once or repeatedly.
Embodiment 2, shown in Figure 2, embodiment 2 is with the difference of embodiment 1: the first luminous submodule 1 is provided with two LED light sources 7, second luminous submodule 2 does not arrange LED light source 7, first luminous submodule does not arrange fluorescence conversion layer 6, second luminous submodule 1 is provided with fluorescence conversion layer 6, and described fluorescence conversion layer 6 is coated on reflector 5.
Embodiment 3, shown in Figure 3, embodiment 3 is with the difference of embodiment 2: the first subregion, luminous submodule 1 reflector 5 is coated with fluorescence conversion layer 6.
Embodiment 4, shown in Figure 4, embodiment 4 is with the difference of embodiment 2: the first luminous submodule 1 does not comprise transmission region 8, and all light penetrates by the transmission region 8 of the second luminous submodule 2.
Embodiment 5, shown in Figure 5, embodiment 5 is with the difference of embodiment 1: the subregion, reflector 5 of the first luminous submodule 1 is coated with fluorescence conversion layer 6.
In embodiment 1, embodiment 2, embodiment 3, embodiment 4 and embodiment 5, the number of luminous submodule is 2, but the number of luminous submodule is not limited to the present embodiment 1, embodiment 2, embodiment 3, embodiment 4 and embodiment 5, can according to the number of the luminous submodule needing selection suitable of product.
In embodiment 1 and embodiment 5, the number of the LED light source 7 in the first luminous submodule 1 and the second luminous submodule 2 is 2; In embodiment 2, embodiment 3 and embodiment 4, the number of the LED light source 7 in the first luminous submodule 1 is 2, and the second luminous submodule 2 does not arrange LED light source 7.But the number of LED light source is not limited to embodiment 1, embodiment 2, embodiment 3, embodiment 4 and embodiment 5, the number of LED light source 7 rationally can be set according to the needs of product.
In embodiment 1, embodiment 2, embodiment 3 and embodiment 5, in the first luminous submodule 1 and the second luminous submodule 2, all comprise two transmission regions 8; In example 4, the first luminous submodule 1 does not comprise transmission region 8, the second luminous submodule 2 comprises two transmission regions 8.But the number of transmission region 8 and position are not limited to embodiment 1, embodiment 2, embodiment 3, embodiment 4 and embodiment 5, position and the number of transmission region 8 rationally can be set according to the needs of product.
In embodiment 1, the reflector 5 of the first luminous submodule 1 and the second luminous submodule 2 applies fluorescence conversion layer 6 all completely; In embodiment 2 and embodiment 4, the reflector 5 on the reflector 5 of the first luminous submodule 1 on the luminous submodule 2 of all uncoated fluorescence conversion layer 6, second applies fluorescence conversion layer 6 all completely; In embodiment 3 and embodiment 5, the subregion, reflector 5 on the first luminous submodule 1 is coated with on the reflector 5 on the luminous submodule 2 of fluorescence conversion layer 6, second and applies fluorescence conversion layer 6 all completely.But the position and the size that reflector 5 apply fluorescence conversion layer 6 are not limited to embodiment 1, embodiment 2, embodiment 3, embodiment 4 and embodiment 5, rationally can apply according to the needs of product.
Above-described embodiment is only used for further illustrating a kind of light-emitting device of the present invention and luminescent method thereof; but the present invention is not limited to embodiment; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall in the protection range of technical solution of the present invention.
Claims (8)
1. a light-emitting device, is characterized in that: comprise at least two luminous submodules, between luminous submodule, form reflection chamber and the front of each luminous submodule all towards reflection chamber, described reflection chamber has open transmission region; Described each luminous submodule includes substrate and reflector, and sequentially fixes between substrate and reflector, wherein, reflector as luminous submodule just facing to reflection chamber; At least one luminous submodule is provided with at least one LED light source, described LED light source to be fixed on described substrate and towards reflection chamber, at least one luminous submodule is provided with fluorescence conversion layer, described fluorescence conversion layer is coated on reflector, and each luminous submodule all comprises at least two transmission regions.
2. light-emitting device according to claim 1, is characterized in that: described subregion, reflector is coated with fluorescence conversion layer.
3. light-emitting device according to claim 1, is characterized in that: described LED light source at least sends a kind of light of color, and described LED light source sends the wave-length coverage of light at 200nm ~ 700nm.
4. light-emitting device according to claim 1, is characterized in that: described fluorescence conversion layer at least comprises a kind of fluorescence converters, and described fluorescence converters is the combination of a kind of in rare earth fluorescent powder material, quanta point material or two kinds.
5. light-emitting device according to claim 1, is characterized in that: described substrate is placed with circuit layer, and the electrode of described LED light source is connected with described circuit layer.
6. the luminescent method of a light-emitting device according to claim 1, it is characterized in that: the first illumination that described LED light source sends is mapped on fluorescence conversion layer, a part for the first light is absorbed by fluorescence conversion layer and launches the second light, another part of the second light and the first described light is all irradiated on reflector through fluorescence conversion layer, penetrates from described transmission region through diffuse reflection once or repeatedly.
7. luminescent method according to claim 6, is characterized in that: the wave-length coverage of the first described light is at 200nm ~ 700nm.
8. luminescent method according to claim 6, is characterized in that: the wave-length coverage of described the second light is at 200nm ~ 700nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210022074.6A CN102623624B (en) | 2012-01-30 | 2012-01-30 | Light-emitting device and light-emitting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210022074.6A CN102623624B (en) | 2012-01-30 | 2012-01-30 | Light-emitting device and light-emitting method thereof |
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| CN102623624A CN102623624A (en) | 2012-08-01 |
| CN102623624B true CN102623624B (en) | 2015-06-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104659195B (en) * | 2014-12-24 | 2017-08-29 | 绍兴文理学院 | A kind of reflection white-light LED/light source |
| CN112526786B (en) * | 2020-11-27 | 2022-09-27 | 北海惠科光电技术有限公司 | Color film substrate, display panel and display device |
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| CN1542989A (en) * | 2003-03-31 | 2004-11-03 | ��ʽ���������ǵ��� | LED device |
| US20040252509A1 (en) * | 2003-06-16 | 2004-12-16 | Chung-Hsiang Lin | Omnidirectional one-dimensional photonic crystal and light emitting device made from the same |
| US20060203468A1 (en) * | 2004-03-30 | 2006-09-14 | Goldeneye, Inc. | Light recycling illumination systems with wavelength conversion |
| US20090242919A1 (en) * | 2008-03-27 | 2009-10-01 | Industrial Technology Research Institute | Light emitting device |
| CN101918877A (en) * | 2008-01-17 | 2010-12-15 | 微阳有限公司 | Light multiplexer and recycler, and micro-projector incorporating the same |
| CN202469605U (en) * | 2012-01-30 | 2012-10-03 | 厦门阳光恩耐照明有限公司 | Light-emitting device |
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2012
- 2012-01-30 CN CN201210022074.6A patent/CN102623624B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542989A (en) * | 2003-03-31 | 2004-11-03 | ��ʽ���������ǵ��� | LED device |
| US20040252509A1 (en) * | 2003-06-16 | 2004-12-16 | Chung-Hsiang Lin | Omnidirectional one-dimensional photonic crystal and light emitting device made from the same |
| US20060203468A1 (en) * | 2004-03-30 | 2006-09-14 | Goldeneye, Inc. | Light recycling illumination systems with wavelength conversion |
| CN101918877A (en) * | 2008-01-17 | 2010-12-15 | 微阳有限公司 | Light multiplexer and recycler, and micro-projector incorporating the same |
| US20090242919A1 (en) * | 2008-03-27 | 2009-10-01 | Industrial Technology Research Institute | Light emitting device |
| CN202469605U (en) * | 2012-01-30 | 2012-10-03 | 厦门阳光恩耐照明有限公司 | Light-emitting device |
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| CN102623624A (en) | 2012-08-01 |
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