CN101440933A - LED light source module group and method for generating white light - Google Patents
LED light source module group and method for generating white light Download PDFInfo
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- CN101440933A CN101440933A CNA2007101928652A CN200710192865A CN101440933A CN 101440933 A CN101440933 A CN 101440933A CN A2007101928652 A CNA2007101928652 A CN A2007101928652A CN 200710192865 A CN200710192865 A CN 200710192865A CN 101440933 A CN101440933 A CN 101440933A
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- glue
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- powder
- rouge
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Abstract
The invention discloses a LED light source module and a method for generating white light. The LED light source module comprises a LED luminous unit, a mixture of red phosphor and glue, light conducting plate and protection glue. The light emitted from the LED luminous unit penetrates the protection glue and excites the red phosphor and glue mixture to generate white light. The LED luminous unit and mixture of the red phosphor and glue are separated and generate the white light by the light conducting plate. The method produces the white light with low color temperature and high color rendering property.
Description
Affiliated field
The present invention relates to the method for a kind of led light source and generation white light, particularly relate to the method for a kind of led light source module and generation white light thereof.
Background technology
As everyone knows, the white light LEDs preparation method has a variety of, for example: one, synthetic by red, green and blue three-primary color LED; Its two, blue led+yellow (YAG) fluorescent material, its three, ultraviolet LED+three primary colors fluorescent powder and multilayer organic electroluminescent (OLED) etc., wherein, " blue-ray LED+yellow fluorescent powder " method becomes the technology main flow that generates white light.In order to prepare the white light of low colour temperature, high-color rendering, in said method, also add following SOME METHODS: fluorescent material (rouge and powder) transformation approach, RGB three color contamination light etc.Though adopt above-mentioned method can prepare the white light of low colour temperature, high-color rendering, this method also has following technical disadvantages: one, the low color temperature white light that adopts the encapsulation of YAG fluorescent material to generate, but colour rendering is poor; Its two, the white light light efficiency that adopts the rouge and powder encapsulation to generate is little; Its three, the white light instability that adopts the encapsulation of rouge and powder and blue light to generate, it is big to light light decay for a long time; Its four, adopt the white light of the low colour temperature of RGB three color contamination photogenerateds, but R, G, three kinds of chip light decays of B are inconsistent, the colour temperature drift is serious.
Summary of the invention
The invention provides the method for a kind of led light source module and generation white light thereof, it has overcome the existing deficiency of white light LEDs of background technology.
The technical solution adopted for the present invention to solve the technical problems is: a kind of led light source module, it comprises mixture, the LGP of LED luminescence unit, protection glue, rouge and powder and glue.Wherein, the LED luminescence unit is made up of blue chip, spun gold, YAG fluorescent material and glue, and this blue chip is sent blue-light excited YAG fluorescent material, launches gold-tinted and remaining blue light is combined into white light.This LED luminescence unit is a known technology, is not further described at this in order to save space.The mixture of rouge and powder and glue entirely is coated on the LGP equably, and the mixture that is coated in rouge and powder on the LGP and glue needs the characteristics (〉=1.4) of high-transmission rate, and applied thickness is 1-3mm.Rouge and powder and glue mix and can be coated in more equably on the LGP, have so just overcome the rouge and powder solid and have been difficult to realize the even shortcoming that entirely is coated on the LGP.Protection glue is bonded in the exocuticle of rouge and powder and glue mixture, plays the effect of protection rouge and powder, prevents that rouge and powder is exposed in the air and oxidation.Protection glue needs high-transmission rate (〉=1.4), and thickness is 1-3mm.The white light that gold-tinted that is emitted by the LED luminescence unit and remaining blue light are combined into passes protection glue, excites the mixture of rouge and powder and glue, and the white light that shoots out by LGP has low colour temperature, the characteristics of high-color rendering.
Compare with prior art, the white light of Sheng Chenging has high-color rendering by this method, low colour temperature, and also colour temperature is not easy drift, the advantage that cost is low.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is that the master of the LED luminescence unit of embodiments of the invention looks schematic diagram.
Fig. 2 is that the rouge and powder and the glue mixture of embodiments of the invention is coated on the LGP, and the protection gluing is connected on the schematic top plan view on rouge and powder and glue mixture surface.
Fig. 3 is that the rouge and powder and the glue mixture of embodiments of the invention is coated on the LGP, and the master that the protection gluing is connected on rouge and powder and glue mixture surface looks schematic diagram.
Fig. 4 is the elevational schematic view of LED luminescence unit on aluminium base pulling of embodiments of the invention.
Fig. 5 looks schematic diagram for the master of the led light source module of embodiments of the invention.
The specific embodiment
As shown in Figure 1, the LED luminescence unit comprises blue chip 1, spun gold 4, YAG fluorescent material 2, glue 3.Blue chip 1 excites YAG fluorescent material 2, sends gold-tinted and remaining blue light.As Fig. 2, shown in Figure 3, mixture 6 smooth being coated in equably on the LGP 5 of rouge and powder and glue, LGP 5 is an acrylic plate, protection glue 7 is coated in the surface of rouge and powder and glue mixture 6, prevents the rouge and powder oxidation.As shown in Figure 4, LED luminescence unit 8 is placed on the aluminium base tabula rasa 9.As shown in Figure 5, gold-tinted and remaining blue light that the LED luminescence unit 8 on the aluminium base tabula rasa 9 sends are combined into white light, and the white light that is combined into is worn the mixture 6 of penetrating protection glue 7, rouge and powder and glue and shot out low colour temperature, the white light of high-color rendering.
In sum, the white light that shoots out from LGP 5 has high-color rendering at last, and colour rendering index reaches more than 80, the advantage that colour temperature is low and stable.
The method of a kind of led light source module and generation white light thereof is separated the white light that generation is set and is had a LED luminescence unit at least, and by shooting out white light behind the LGP.It may further comprise the steps:
The above, it only is preferred embodiment of the present invention, so can not limit the scope that invention is implemented with this, the i.e. equivalence of doing according to claim of the present invention and description changes and modifies, such as LED be not place on the aluminium base tabula rasa, variation that shape is made in the arrangement of LED etc., all should still belong in the scope that patent of the present invention contains.
Claims (5)
1, a kind of led light source module is characterized in that: it comprises mixture, LGP and the protection glue of LED luminescence unit, rouge and powder and glue; The light that the LED luminescence unit sends passes protection glue, excites the mixture that scribbles rouge and powder and glue to generate white light; This LED luminescence unit has adopted with rouge and powder and has separated setting, and shoots out white light by LGP.
2, a kind of led light source module according to claim 1, it is characterized in that: this LED luminescence unit comprises blue chip, spun gold, YAG fluorescent material and glue, and this blue chip excites YAG fluorescent material, sends gold-tinted and remaining blue light is combined into white light.
3, a kind of led light source module according to claim 2, it is characterized in that: this LGP is a transparent panel, and has entirely applied the mixture of rouge and powder and glue on this LGP equably.
4, a kind of led light source module according to claim 2, it is characterized in that: this protection glue is bonded in the exocuticle of rouge and powder and glue mixture, plays the effect of protection rouge and powder.
5, a kind of led light source module generates the method for white light, it is characterized in that: separate the white light that generation is set and have a LED luminescence unit at least, and by shooting out white light behind the LGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101928652A CN101440933A (en) | 2007-11-23 | 2007-11-23 | LED light source module group and method for generating white light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101928652A CN101440933A (en) | 2007-11-23 | 2007-11-23 | LED light source module group and method for generating white light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101440933A true CN101440933A (en) | 2009-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101928652A Pending CN101440933A (en) | 2007-11-23 | 2007-11-23 | LED light source module group and method for generating white light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101440933A (en) |
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2007
- 2007-11-23 CN CNA2007101928652A patent/CN101440933A/en active Pending
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090527 |