CN103199159A - Preparation method of lens used for white light light-emitting diode (LED) - Google Patents
Preparation method of lens used for white light light-emitting diode (LED) Download PDFInfo
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- CN103199159A CN103199159A CN 201210005665 CN201210005665A CN103199159A CN 103199159 A CN103199159 A CN 103199159A CN 201210005665 CN201210005665 CN 201210005665 CN 201210005665 A CN201210005665 A CN 201210005665A CN 103199159 A CN103199159 A CN 103199159A
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Abstract
The invention provides a preparation method of a lens used for a white light light-emitting diode (LED). The preparation method comprises the following steps: mixing lens base stock with materials having scattering and diffusion effects according to a certain proportion, wherein the mass ratio of the lens base stock to the materials having the scattering and diffusion effects in the mixture is between 100:0.9 and 100:0.01; mixing the lens base stock with the materials having the scattering and diffusion effects in an environment where temperature is between 60 DEG C and 80 DEG C and mixing the lens base stock with the materials uniformly in a screw machine; and the mixture of the lens base stock and the materials having the scattering and diffusion effects is formed in an injection molding mode in a mold with a temperature of 180 DEG C to 230 DEG C. According to the preparation method of the lens used for the white light LED, a method of adding the materials having the scattering and diffusion effects into the lens base stock is adopted, the problem of chromatic dispersion existing in usage of a traditional lens is effectively solved, and consistency of directions of emergent light of light passing through a lens is achieved.
Description
Technical field
The present invention relates to a kind of optical element, in particular, relate to the preparation method of the lens that a kind of white light LEDs uses.
Background technology
Illuminative high-power LED adopts the chip light emitting of emission blue light to excite to be stimulated the method for the fluorescent material that produces gold-tinted to produce white light usually; be specially; above the chip of emission blue light, apply the conversion layer that one deck is mixed by epoxy resin and fluorescent powder grain; the part blue light that chip is launched is absorbed and is converted to gold-tinted in phosphor powder layer, remaining blue light enters epoxy resin layer and becomes white light with yellow light mix.
As mentioned above, because the white light of most of great power LEDs is mixed by blue light and two kinds of light of gold-tinted, owing to be different with a kind of medium for the refractive index of the incident ray of different wave length, so this kind white light is when scioptics, it is dispersion phenomenon that the light of two kinds of different wave lengths (color) can produce the inconsistent of direction, if this lighting device is used to road lighting, then face to be illuminated (road surface) can produce hot spot or the light belt of two kinds of colors that are separated from each other.
Summary of the invention
The present invention is for solving the technical problem that exists in the above-mentioned prior art, the preparation method of a kind of white light LEDs with lens is provided, employing adds the method for the material with scattering and diffusion in the lens base-material, efficiently solve the chromatic dispersion problem that exists in the conventional lenses use, reach light through uniformity, the consistency of hot spot behind the lens.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of white light LEDs preparation method of lens comprises that step is as follows:
1) the lens base-material is mixed according to a certain percentage with the material with scattering and diffusion, in the mixture lens base-material and have scattering and the mass ratio of the material of diffusion between 100 ︰, 0.9 to 100 ︰ 0.01;
2) the lens base-material is mixed under 60 ℃ to 80 ℃ temperature environment with the material with scattering and diffusion, and in the screw rod machine, mix;
3) with said lens base-material and the mixture injection mo(u)lding in 180 ℃ to 230 ℃ mould with material of scattering and diffusion.
Described material with scattering and diffusion comprises spherical resin, polymethyl methacrylate, polyphenyl second
One or more mixing in alkene microballoon, methyl methacrylate and cinnamic copolymer, silicone and the silicon dioxide.
Described material with scattering and diffusion is spherical resin.
The mass ratio of lens base-material and spherical resin is between 100 ︰, 0.5 to 100 ︰ 0.09 in the described mixture.
Described lens base-material is PC, PMMA or silica gel.
Technical solution of the present invention, in lens are made, by in the lens base-material, adding a certain proportion of material with scattering and diffusion, when the light that makes white light LEDs send shines lens, the material with scattering and diffusion that adds in can scioptics changes the direction of light, the light of various wavelength is mixed uniformly, to reduce chromatic dispersion problem, reach all even soft of light.
Embodiment
The present invention discloses the preparation method that a kind of white light LEDs is used lens, comprises that step is as follows:
1) the lens base-material is mixed according to a certain percentage with the material with scattering and diffusion, in the mixture lens base-material and have scattering and the mass ratio of the material of diffusion between 100 ︰, 0.9 to 100 ︰ 0.01;
2) the lens base-material is mixed under 60 ℃ to 80 ℃ temperature environment with the material with scattering and diffusion, and in the screw rod machine, mix;
3) with said lens base-material and the mixture injection mo(u)lding in 180 ℃ to 230 ℃ mould with material of scattering and diffusion.
Show by a large amount of experimental datas, the material with scattering and diffusion among the preparation method of the present invention adopts spherical resin, the lens base-material adopts PMMA, the mass ratio of lens base-material and spherical resin is between 100 ︰, 0.5 to 100 ︰ 0.09 time, the effect of experiment is best, can significantly reduce chromatic dispersion problem, the uniformity of the hot spot of irradiation and soft property the best.
Claims (5)
1. a white light LEDs comprises that step is as follows with the preparation method of lens:
1) the lens base-material is mixed according to a certain percentage with the material with scattering and diffusion, in the mixture lens base-material and have scattering and the mass ratio of the material of diffusion between 100 ︰, 0.9 to 100 ︰ 0.01;
2) the lens base-material is mixed under 60 ℃ to 80 ℃ temperature environment with the material with scattering and diffusion, and in the screw rod machine, mix;
3) with said lens base-material and the mixture injection mo(u)lding in 180 ℃ to 230 ℃ mould with material of scattering and diffusion.
2. white light LEDs according to claim 1 is with the preparation method of lens, it is characterized in that described material with scattering and diffusion comprises one or more the mixing in spherical resin, polymethyl methacrylate, polystyrene microsphere, methyl methacrylate and cinnamic copolymer, silicone and the silicon dioxide.
3. white light LEDs according to claim 2 is characterized in that with the preparation method of lens described material with scattering and diffusion is spherical resin.
4. white light LEDs according to claim 3 is characterized in that with the preparation method of lens the mass ratio of lens base-material and spherical resin is between 100 ︰, 0.5 to 100 ︰ 0.09 in the described mixture.
5. it is characterized in that with the preparation method of lens described lens base-material is PC, PMMA or silica gel according to arbitrary described white light LEDs in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210005665 CN103199159A (en) | 2012-01-10 | 2012-01-10 | Preparation method of lens used for white light light-emitting diode (LED) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210005665 CN103199159A (en) | 2012-01-10 | 2012-01-10 | Preparation method of lens used for white light light-emitting diode (LED) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103199159A true CN103199159A (en) | 2013-07-10 |
Family
ID=48721600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210005665 Pending CN103199159A (en) | 2012-01-10 | 2012-01-10 | Preparation method of lens used for white light light-emitting diode (LED) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103199159A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609623A (en) * | 2014-11-19 | 2016-05-25 | Lg伊诺特有限公司 | Light-emitting device package and light-emitting module including the same |
| CN108534094A (en) * | 2018-04-28 | 2018-09-14 | 江苏天楹之光光电科技有限公司 | A kind of absorption anti-blue light LED lens and preparation method thereof |
| CN112413440A (en) * | 2019-08-22 | 2021-02-26 | 浙江宝铭光学材料有限公司 | LED lamp for blackboard |
-
2012
- 2012-01-10 CN CN 201210005665 patent/CN103199159A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609623A (en) * | 2014-11-19 | 2016-05-25 | Lg伊诺特有限公司 | Light-emitting device package and light-emitting module including the same |
| CN105609623B (en) * | 2014-11-19 | 2021-03-02 | Lg伊诺特有限公司 | Light emitting device package and light emitting module including the same |
| CN108534094A (en) * | 2018-04-28 | 2018-09-14 | 江苏天楹之光光电科技有限公司 | A kind of absorption anti-blue light LED lens and preparation method thereof |
| CN112413440A (en) * | 2019-08-22 | 2021-02-26 | 浙江宝铭光学材料有限公司 | LED lamp for blackboard |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |