CN107944208B - Method for calculating white light led fluorescent glue ratio - Google Patents
Method for calculating white light led fluorescent glue ratio Download PDFInfo
- Publication number
- CN107944208B CN107944208B CN201711104643.0A CN201711104643A CN107944208B CN 107944208 B CN107944208 B CN 107944208B CN 201711104643 A CN201711104643 A CN 201711104643A CN 107944208 B CN107944208 B CN 107944208B
- Authority
- CN
- China
- Prior art keywords
- powder
- fluorescent powder
- fluorescent
- weight
- blue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/10—Analysis or design of chemical reactions, syntheses or processes
Abstract
The invention discloses a method for calculating the proportion of white light led fluorescent glue, which adopts the color gamut principle, adopts the complementary light principle, adopts mathematical thinking to carry out quantitative modeling on the excitation efficiency of fluorescent powder, adopts excell software to carry out mathematical processing, combines the color temperature of a black body locus, calculates the chromaticity coordinate under the color temperature by a mathematical fitting method, and adopts the mathematical fitting method to calculate the concentration ratio of each fluorescent powder. The method for calculating the white light LED fluorescent glue ratio is used for helping a packaging LED engineer to quickly and effectively solve the problem of fluorescent glue ratio of white light LED products, so that high efficiency timeliness and consistency of ratio colors are achieved. The invention plays a theoretical guiding role in the proportion of the white light LED fluorescent glue of a packaging LED manufacturer.
Description
Technical Field
The invention relates to the technical field of LED packaging fluorescent powder proportioning, in particular to a method for calculating the proportioning of white light LED fluorescent glue.
Background
2835 white light led is a mainstream product in the current market, and the current mainstream preparation method of white light led is Blue led + yellow phosphor, so it is especially important to know the calculation method of the concentration of white light phosphor, and engineers are all using experience to fine-tune the fluorescent glue ratio, which causes the problems of time waste and low efficiency. Therefore, the method aims to help a packaging LED engineer to quickly and effectively solve the problem of fluorescent glue proportioning of 2835 white light LED products, so that high efficiency timeliness and proportioning color consistency are achieved. The invention plays a theoretical guiding role in the proportioning of 2835 white light led fluorescent glue of a packaging led manufacturer.
Disclosure of Invention
Aiming at the problems, the invention provides a method for calculating the proportion of white light led fluorescent glue, which comprises the following steps:
step 2, inputting the color temperature CCT which needs to be reached finally, and calculating chromaticity coordinates (x standard and y standard) under the color temperature CCT by combining the black body track color temperature through mathematical fitting and a piecewise function method;
step 4, inputting standard particle diameters (r1, r2) of the fluorescent powder, and modeling a series of excellent absorption functions f (k) and an absorption function f (g) of the fluorescent powder through a mathematical fitting function;
step 5, solving a fluorescent powder proportioning concentration proportion function F through the step 4; f ═ phosphor 1 concentration: concentration of phosphor 2, wherein when the concentration of phosphor 2 is regarded as unit 1, the ratio of the concentration of phosphor 1 to the concentration of phosphor 2 is
Step 6, calculating a linear ratio K value of chromaticity coordinates (x standard and y standard) under the color temperature in a blue light chip coordinate (x blue and y blue) and a comprehensive chromaticity coordinate (x comprehensive and y comprehensive) of the fluorescent powder by a mathematical method;
step 7, solving the weight of the fluorescent powder 1 (g1), the weight of the fluorescent powder 2 (g2) and the fluorescent glue proportion (the weight of glue: the weight of the fluorescent powder 1 (g1) and the weight of the fluorescent powder 2 (g2)) through mathematical fitting function modeling;
glue weight: 1 weight of fluorescent powder: and (3) the weight of the fluorescent powder 2: g1：g2。
Further, the method for calculating the fluorescent glue ratio is suitable for 2835 white light 0.4 cup deep products.
Further, in the step 1, the values of the x powder 1, the y powder 1, the x powder 2 and the y powder 2 are determined according to chromaticity coordinates in a phosphor specification, and the values of the dominant wavelengths wld of the x blue, the y blue and the blue light are determined according to color coordinates of a test blue light bare chip.
Further, in the step 4, the values of r1 and r2 are determined according to the specification of the fluorescent powder.
Compared with the prior art, the invention adopts the technical scheme, and has the following technical effects: the fluorescent glue packaging method helps a packaging LED engineer to quickly and effectively solve the problem of fluorescent glue proportioning of 2835 white light LED products, so that high efficiency timeliness and consistency of proportioning colors are achieved.
Drawings
FIG. 1 shows exemplary calculations for a method 3000K according to the present invention;
FIG. 2 shows an exemplary calculation of 4000K according to the present invention;
FIG. 3 is an exemplary calculation of the method 8000K of the present invention.
Detailed description of the preferred embodiments
The technical scheme of the invention is further explained in detail by combining the attached drawings:
example 1
As shown in fig. 1, in the method for calculating the fluorescent glue ratio of the white light led, the white light led in the invention is mainly developed for a 2835 model white light led lamp, and is used for helping an encapsulated led engineer to quickly and effectively solve the fluorescent glue ratio of 2835 white light led products, so that high efficiency timeliness and consistency of matched colors are achieved. The invention plays a theoretical guiding role in the proportioning of 2835 white light led fluorescent glue of a packaging led manufacturer. The invention provides a calculation method for quantitatively modeling the excitation efficiency of fluorescent powder by using a complementary light principle and mathematical thinking by using a color gamut principle, performing mathematical processing by using excell software, calculating chromaticity coordinates under the color temperature by using a mathematical fitting method by combining with the color temperature of a black body track, and calculating the fluorescent glue ratio by using the mathematical fitting method.
The method for calculating the fluorescent glue proportion is suitable for 2835 white light 0.4 cup deep products.
A method for calculating the proportion of white light led fluorescent glue comprises the following specific steps:
the values of the x powder 1, the y powder 1 and the (x powder 2, y powder 2) are values according to chromaticity coordinates in a fluorescent powder specification, and the values of the x blue and the y blue are values according to color coordinates of a test blue light bare chip;
step 2, inputting the color temperature CCT which needs to be reached finally, and calculating chromaticity coordinates (x standard and y standard) under the color temperature CCT by combining the black body track color temperature through mathematical fitting and a piecewise function method;
step 4, inputting standard particle diameters (r1, r2) of the fluorescent powder, and modeling a series of excellent absorption functions f (k) and an absorption function f (g) of the fluorescent powder through a mathematical fitting function;
wherein the values of r1 and r2 are determined according to the specification of the fluorescent powder;
step 5, solving a fluorescent powder proportioning concentration proportion function F through the step 4; f ═ phosphor 1 concentration: concentration of phosphor 2, wherein when the concentration of phosphor 2 is regarded as unit 1, the ratio of the concentration of phosphor 1 to the concentration of phosphor 2 is
Step 6, calculating a linear ratio K value of chromaticity coordinates (x standard and y standard) under the color temperature in a blue light chip coordinate (x blue and y blue) and a comprehensive chromaticity coordinate (x comprehensive and y comprehensive) of the fluorescent powder by a mathematical method;
step 7, solving the weight of the fluorescent powder 1 (g1), the weight of the fluorescent powder 2 (g2) and the fluorescent glue proportion (the weight of glue: the weight of the fluorescent powder 1 (g1) and the weight of the fluorescent powder 2 (g2)) through mathematical fitting function modeling;
glue weight: 1 weight of fluorescent powder: and (3) the weight of the fluorescent powder 2: g1：g2。
Example 2
The color temperature is 3000K, the phosphor 1 is GM537H8, the phosphor 2 is MPR1003ES3, and the chip is in the band of 452.5-455nm (453), the calculation result is shown in FIG. 2, wherein the chromaticity coordinate of the phosphor 1GM537H8 is (0.378,0.573) specification particle size of 15um, the chromaticity coordinate of the phosphor 2MPR1003ES3 is (0.646,0.356) specification particle size of 8um, and the chromaticity coordinate of the chip is (0.1532,0.0207) in the band of 452.5-455nm (453); the result of the calculation is:
glue weight: phosphor 1 weight (GM537H 8): phosphor 2 weight (MPR1003ES3) ═ 3:1.1088: 0.1048;
the proportion of the color point obtained by actual batch production is as follows under 3000K color temperature:
glue weight: phosphor 1 weight (GM537H 8): phosphor 2 weight (MPR1003ES3) ═ 3:1.11: 0.104;
the actual batch production proportioning obtains the fluorescent powder proportioning concentration of the color point under the color temperature of 3000K, which is approximately equal to the calculation result of the method.
Example 3
The color temperature is 4000K, the fluorescent powder 1 is GM537H8, the fluorescent powder 2 is MPR1003ES3, and the chip is in a band of 452.5-455nm (453), the calculation result is shown in FIG. 2, wherein the chromaticity coordinate of the fluorescent powder 1GM537H8 is (0.378,0.573) specification particle size of 15um, the chromaticity coordinate of the fluorescent powder 2MPR1003ES3 is (0.646,0.356) specification particle size of 8um, and the chromaticity coordinate of the chip is (0.1532,0.0207) in a band of 452.5-455nm (453); the result of the calculation is:
glue weight: phosphor 1 weight (GM537H 8): phosphor 2 weight (MPR1003ES3) ═ 3:0.7145: 0.0521;
the proportion of the color point obtained by actual batch production is as follows:
glue weight: phosphor 1 weight (GM537H 8): phosphor 2 weight (MPR1003ES3) ═ 3:0.7155: 0.053;
the actual batch production proportioning obtains the fluorescent powder proportioning concentration of the color point under the color temperature of 4000K, which is approximately equal to the calculation result of the method.
Example 4
The color temperature is 8000K, the fluorescent powder 1 is GM537H8, the fluorescent powder 2 is MPR1003ES3, the chip is in a band of 452.5-455nm (453), and the calculation result is shown in figure 2, wherein the chromaticity coordinate of the fluorescent powder 1GM537H8 is (0.378,0.573) specification particle size of 15um, the chromaticity coordinate of the fluorescent powder 2MPR1003ES3 is (0.646,0.356) specification particle size of 8um, and the chromaticity coordinate of the chip is (0.1532,0.0207) in a band of 452.5-455nm (453); the result of the calculation is:
glue weight: phosphor 1 weight (GM537H 8): phosphor 2 weight (MPR1003ES3) ═ 3:0.3374: 0.0145;
the proportion of the color point obtained by actual batch production is as follows under 8000K color temperature:
glue weight: phosphor 1 weight (GM537H 8): phosphor 2 weight (MPR1003ES3) ═ 3:0.3374: 0.0146;
the actual batch production proportioning obtains the fluorescent powder proportioning concentration of the color point at 8000K color temperature, which is approximately equal to the calculation result of the method.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A method for calculating the proportion of white light led fluorescent glue is characterized by comprising the following steps:
step 1, establishing a chromaticity coordinate of fluorescent powder: (x powder 1, y powder 1), (x powder 2, y powder 2); blue light chip coordinate: (x blue, y blue) is input; blue dominant wavelength wld;
step 2, inputting the color temperature CCT which needs to be reached finally, and calculating chromaticity coordinates (x standard and y standard) under the color temperature CCT by combining the black body track color temperature through mathematical fitting and a piecewise function method;
step 3, carrying out triangular modeling to obtain comprehensive chromaticity coordinates (x comprehensive and y comprehensive) of the fluorescent powder according to the chromaticity coordinates input in the step 1 and the chromaticity coordinates calculated in the step 2;
step 4, inputting the specification particle diameters r1 and r2 of the fluorescent powder, and listing a color absorption function f and a fluorescent powder absorption function g through mathematical fitting function modeling;
step 5, calculating the ratio concentration of the fluorescent powder through the step 4A degree scale function F; f ═ phosphor 1 concentration: concentration of phosphor 2, wherein when the concentration of phosphor 2 is regarded as unit 1, the ratio of the concentration of phosphor 1 to the concentration of phosphor 2 is
Step 6, calculating a linear ratio K value of chromaticity coordinates (x standard and y standard) under the color temperature in a blue light chip coordinate (x blue and y blue) and a comprehensive chromaticity coordinate (x comprehensive and y comprehensive) of the fluorescent powder by a mathematical method;
step 7, solving the weight g1 of the fluorescent powder 1, the weight g2 of the fluorescent powder 2 and the proportion of fluorescent glue (the weight of glue is that the weight g1 of the fluorescent powder 1 is that the weight g2 of the fluorescent powder 2) through mathematical fitting function modeling;
glue weight: 1 weight of fluorescent powder: and (3) the weight of the fluorescent powder 2: g1：g2。
2. The method of claim 1, wherein the method is suitable for 2835 white light 0.4 cup deep products.
3. The method for calculating the proportion of the white light led fluorescent glue according to claim 1, wherein in the step 1, the values of the x powder 1, the y powder 1, the x powder 2 and the y powder 2 are obtained according to chromaticity coordinates in a fluorescent powder specification, and the values of the dominant wavelengths wld of the x blue, the y blue and the blue light are obtained according to color coordinates of a test blue light bare chip.
4. The method for calculating the ratio of white led fluorescent glue according to claim 1, wherein the values of r1 and r2 in step 4 are determined according to the specification of fluorescent powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104643.0A CN107944208B (en) | 2017-11-10 | 2017-11-10 | Method for calculating white light led fluorescent glue ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104643.0A CN107944208B (en) | 2017-11-10 | 2017-11-10 | Method for calculating white light led fluorescent glue ratio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107944208A CN107944208A (en) | 2018-04-20 |
| CN107944208B true CN107944208B (en) | 2020-06-19 |
Family
ID=61934670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711104643.0A Active CN107944208B (en) | 2017-11-10 | 2017-11-10 | Method for calculating white light led fluorescent glue ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107944208B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649106B (en) * | 2018-04-24 | 2019-11-15 | 浙江云科智造科技有限公司 | A kind of LED production technology optimization method based on big data technology |
| CN110399620B (en) * | 2018-04-24 | 2022-12-16 | 江西鸿利光电有限公司 | Method suitable for calculating fluorescent glue ratio in LED packaging |
| CN109802028B (en) * | 2018-11-20 | 2020-07-28 | 浙江云科智造科技有限公司 | Least square method-based L ED fluorescent powder glue ratio and glue quantity recommendation method |
| CN109740176A (en) * | 2018-11-20 | 2019-05-10 | 浙江云科智造科技有限公司 | Three-color phosphor LED proportion and dispensing amount recommended method based on least square method |
| CN109742218B (en) * | 2018-11-20 | 2021-01-22 | 浙江云科智造科技有限公司 | LED fluorescent powder glue ratio and glue amount recommendation method based on least square method |
| CN109742217B (en) * | 2018-11-20 | 2021-01-22 | 浙江云科智造科技有限公司 | Four LED fluorescent powder proportioning and dispensing methods based on least square method |
| CN110137333B (en) * | 2019-04-19 | 2020-11-24 | 华南理工大学 | Method for adjusting white light LED fluorescent powder ratio according to production data |
| CN111710771B (en) * | 2020-05-13 | 2021-11-30 | 浙江云科智造科技有限公司 | Rubber powder ratio recommendation method for LED product |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10473271B2 (en) * | 2015-08-17 | 2019-11-12 | Zhejiang Super Lighting Electric Appliance Co., Ltd. | LED filament module and LED light bulb |
| CN101815381B (en) * | 2010-03-25 | 2013-11-13 | 东华大学 | Method for obtaining high-color rendering white light by using white-light LED and red-light LED with fixed fluorescent powder proportioning ratios |
| CN104998802A (en) * | 2015-06-02 | 2015-10-28 | 中山市利光电子有限公司 | Packaged LED powder blending process |
| CN105870302B (en) * | 2016-03-30 | 2019-01-29 | 深圳市聚飞光电股份有限公司 | A kind of packaging method of high colour gamut white light quanta point LED |
| CN106098913B (en) * | 2016-06-29 | 2019-04-02 | 深圳市源磊科技有限公司 | A method of white light LEDs trial is improved than testing efficiency |
-
2017
- 2017-11-10 CN CN201711104643.0A patent/CN107944208B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107944208A (en) | 2018-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107944208B (en) | Method for calculating white light led fluorescent glue ratio | |
| CN106817811B (en) | The method for realizing full gamut range light distribution based on PWM four primary LED | |
| CN104540263B (en) | A kind of method and device for simulating daylight change | |
| EP2845442B1 (en) | Planckian and non-planckian dimming of solid state light sources | |
| CN105163419B (en) | High color saturation White-light LED illumination system and its color mixing designs method | |
| CN107896398B (en) | Multi-path LED geometric light mixing method | |
| CN109379813B (en) | Color temperature adjustable illumination module and color temperature adjusting method of illumination module | |
| CN102196633B (en) | Colour correction method for coloured light lamp | |
| CN108495406A (en) | Mix light source color temperature adjusting method, system, storage medium and human-computer interaction terminal | |
| CN104300045B (en) | A kind of method for mixing out daylight based on multiple white light sources | |
| CN108733630A (en) | A kind of white light led phosphor concentrations than computational methods | |
| CN109740176A (en) | Three-color phosphor LED proportion and dispensing amount recommended method based on least square method | |
| CN105826450A (en) | High-color-temperature LED lamp bead manufacture technology | |
| WO2024007848A1 (en) | Rgbwcla-based seven color-in-one led full-spectrum color mixing method | |
| CN105517226A (en) | Temperature and color adjusting method for LED white lamps | |
| Nizamoglu et al. | Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering: reply to comment | |
| CN110399620B (en) | Method suitable for calculating fluorescent glue ratio in LED packaging | |
| CN111163556A (en) | Light distribution method for realizing LED light source with any color | |
| CN105301469B (en) | The screening technique of three chip LEDs of EO-1 hyperion efficiency performance | |
| CN108649112B (en) | LED product yield optimization method | |
| CN107665939B (en) | Preparation method of white light LED chip | |
| CN109742218A (en) | One-color fluorescence powder LED proportion and dispensing amount recommended method based on least square method | |
| CN104576632A (en) | Illumination module and illumination device with same | |
| CN203927512U (en) | Combined type paster LED white light | |
| CN208724234U (en) | A kind of bionical illuminator of LED based |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180906 Address after: 212009 88 Wei Yi Road, Ding Mao Development Area, Zhenjiang, Jiangsu Applicant after: Wenrui Photoelectric Co., Ltd., Jiangsu Address before: 212009 88 Wei Yi Road, Ding Mao Development Area, Zhenjiang, Jiangsu Applicant before: Jiangsu Wenrun Optoelectronic Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |