TWI458959B - LED fluorescent material light color and spectral detection method - Google Patents

Description

LED fluorescent material light color and spectrum detection method

The invention provides a method for detecting light color and spectrum of LED fluorescent materials, in particular to directly testing non-destructive and non-changing any LED fluorescent test sample type, LED fluorescent material conversion efficiency and light color characteristic quantitative spectrum and light Color detection method, and rapid sampling, no need to consume excess materials and manpower to make samples, and effective filtering of poor LED fluorescent materials into production to reduce the production of LED fluorescent materials by poor light color products .

According to the previous LED industry, the LED fluorescent material needs to be illuminated under the actual product structure to perform further analysis. Therefore, the optical path of the sample must be the same as the light path of the white LED, and the fluorescence induced spectrum of the sample must also be similar to the blue light spectrum of the white LED. In the traditional fluorescence spectroscopy system, the above optical environment requirements cannot be matched. There are two main reasons: First, the fluorescence spectroscopy system used in traditional analytical chemistry is mainly used to detect the spectral wavelengths that can be induced by fluorescent materials. Fluorescence spectral wavelength signal generated after induction. Chemical Fluorescence Spectroscopy: Primarily for fluorescence spectroscopic analysis of a wide range of fluorescent materials, not the same as the purpose of white LEDs. The optical path of the system is also different; the fluorescence spectrum for chemical analysis must completely separate the induced spectral signal from the fluorescent spectral signal to avoid interference. Therefore, the 90-degree induced optical path design is adopted, so that the fluorescence spectrum signal and the light-inducing signal are at an angle of 90 degrees, and the direction of each advancement advances, and only the fluorescent signal enters the spectrometer to process the spectral signal output; The traditional fluorescence analysis system for chemical analysis, the main function is to test the relationship between the fluorescent material and the wavelength of the induced light. Therefore, a high-pressure xenon lamp with a wide ultraviolet wavelength is required as a light source for inducing fluorescence generation, and is subjected to dispersion spectrometry. The induced light source is induced by narrowing its light wavelength. Therefore, the traditional chemical fluorescence spectroscopy system, the spectral conditions of the induced light source and the white LED fluorescent induced conditions are very different.

Furthermore, in the past, fluorescent samples could not be directly tested for materials, which has been the biggest problem in white light LED quality assurance testing, mainly because fluorescent materials cannot be directly sampled and tested. In the process of testing, it needs to be matched with other materials: such as silicone or Epoxy plus Diode Chip. The fluorescent material thus measured has been optically interfered by other materials. The sample is actually unable to be clearly judged: the pure fluorescent material, the difference in light color quality, this sample processing method, not only the measured light color data due to other materials interference factors It is completely meaningless, and because of the way in the sample, the material and time are too cumbersome, and the human and material resources and time are wasted.

In addition, in the process of sampling and testing, it must be matched with other materials, as mentioned above: there will be optical qualitative interference, and the biggest interference is optical quantitative interference, the factors causing such interference are nothing more than It is the material itself in the process of mixing adjustment, there will be troubles in the uneven concentration of various materials, because the concentration control provided by each material is quite difficult, and it is difficult to ensure that the concentration will be consistent on a single sample, even The fluorescent material is a solid sample of inorganic crystalline powder and is not uniformly dissolved in molding materials such as silicone and resin. Generally, the powder has a different particle size distribution, and has a particle size of about 5 to 20 um, which exhibits an uneven suspension distribution in the gel body, and must be uniformly stirred by a part of external force, so that it is highly likely to mix the air. The formation of bubbles into the colloid, in this way, the powder will form a uniform state of motion, but there is a risk of introducing air into the gel to generate bubbles. Similarly, this way, due to the distribution of the phosphor powder, it is subject to Blue light induction also does not effectively and uniformly interact with the fluorescent material to produce a stable fluorescent signal.

In addition, when the test is to be carried out, the LED fluorescent material must be mixed with other materials (that is, called damage) in order to be tested, and when used, it cannot be reused, meaning that it must be discarded, which is very environmentally friendly. .

Therefore, how to solve the above problems and deficiencies in the above-mentioned applications, that is, the inventors of the present invention and those involved in the industry are eager to study the direction of improvement.

Therefore, the inventors of the present invention have collected the relevant materials in view of the above-mentioned deficiencies, and through multi-party evaluation and consideration, and through years of experience accumulated in the industry, through continuous trial and modification, the direct test is designed to be non-destructive. And does not change any LED fluorescent test sample type, and can completely simulate the optical and spectral structure of the white LED, and perform a complete spectral separation of the white LED spectrum of the test sample to form independent induced blue light spectrum and fluorescence spectrum. It can effectively replace the traditional chemical detection fluorescence spectroscopy system and related LED fluorescent material detection functions, and has the invention patent of the light color and spectrum detection method of LED fluorescent material with high speed, convenient sampling and easy operation.

The main purpose of the invention is to test the optical path consistent with the white LED optical path, to facilitate the simulation of the actual light color effect, and to be a non-destructive detection method to ensure that the properties of the sample material before and after the test are consistent, and the fluorescent light is induced by the solid LED light source. The material produces fluorescence to simulate white, blue, and fluorescent spectra similar to white LEDs.

The secondary objective of the present invention is that the LED fluorescent material is induced by 180 degrees of vertical light transmission (reflection or penetration of the sample), an optical path similar to that of the white LED, and an external sample cell test to ensure that the LED fluorescent material has Larger convenience replacement space.

Another object of the present invention is to calculate the ratio of light and color, and to determine the size of the blue light wafer, and to select the LED fluorescent material to determine the difference in concentration when manufacturing the finished product sample. The amount of LED fluorescent materials.

In order to achieve the above advantages, the main structure of the present invention includes a detecting device for detecting the color and spectrum of the LED fluorescent material by a combination of a starting light source and an optical integrating sphere, and performing spectral analysis by an analyzing device. The main analysis system is operated by an analysis module, and the analysis module comprises a spectral loading unit, a spectral synthesis unit, a spectral calculation unit, a spectral storage unit and a chromaticity coordinate generation unit; when the starting light source (solid state LED) The light source) emits an induced blue light source and passes through the optical integrating sphere to generate an initial induced blue light spectrum, and the LED fluorescent material is induced by the vertical light receiving of 180 degrees to form the same path as the white light LED, thereby generating an LED fluorescent material. The absorbed blue light spectrum is absorbed, and then the initial induced blue light spectrum and the absorbed blue light spectrum are displayed on the spectral display unit by the spectral loading unit, and the fluorescence spectrum generated by the absorption induced blue light spectrum is displayed on the spectral display unit. At this time, the absorption-induced blue light spectrum and the fluorescence spectrum are synthesized by a spectrum synthesis unit to generate a The light spectrum is displayed on the spectral display unit, and then the spectral addition unit performs spectral addition, subtraction, multiplication, and division operations. First, the absorption-induced blue light spectrum and the fluorescence spectrum are added and combined to generate a synthetic white light spectrum. And displayed on the spectral display unit, and then the initial induced blue light spectrum and the absorbed induced blue light spectrum are subtracted to generate a fluorescence absorption spectrum and displayed on the spectral display unit, and then the synthesized white light spectrum is subjected to spectral multiplication magnification operation. The white light spectrum is synthesized and displayed on the spectral display unit, and the fluorescence spectrum is divided by the fluorescence absorption spectrum to generate a radiation conversion efficiency value of the LED fluorescent material, and then the white light spectrum and the fluorescent absorption are synthesized. The quantitative spectrum, the reduced magnification synthetic white light spectrum and the radiation conversion efficiency value are stored in a spectral storage unit, thereby completing preliminary detection, and when the above steps are completed, the initial induced blue spectrum can be induced by a chromaticity coordinate generating unit, Fluorescence spectrum, synthetic white light spectrum, etc. are converted by color function to generate induced blue light The spectral chromaticity coordinates, the fluorescence spectral chromaticity coordinates, and the synthesized white light spectral chromaticity coordinates are displayed on the screen to generate a complementary color line structure or a color area structure map.

In addition, the spectral calculation unit can further calculate the ratio of brightness to color, and the brightness of the LED chip and the magnification of the fluorescence concentration, so that the user can clearly grasp the relevant reference parameters of the LED.

With the above technology, the LED fluorescent material existing in the conventional LED fluorescent material detecting technology needs to be illuminated under the actual product structure, so that one step analysis can be performed, and the fluorescent material cannot be directly sampled and detected, so the measured Fluorescent materials are also subject to optical qualitative interference of other materials. In fact, the samples to be made cannot be clearly determined. In addition, the measured light color data is completely meaningless due to the interference of other materials, and also due to the sample. The way in the place will lead to too cumbersome materials and time, as well as waste of manpower, material and time. More importantly, the conventional technology must first destroy the LED fluorescent material (that is, mix with other materials) to test, and It is not environmentally friendly, and the problem that cannot be recycled and reused after use is broken, and the practical progress of the present invention as the above advantages is achieved.

In order to achieve the above objects and effects, the technical means and the structure of the present invention will be described in detail with reference to the preferred embodiments of the present invention.

1 and 2 are block diagrams 1 and 2 of a preferred embodiment of the present invention. It can be clearly seen from the figure that the detection system of the present invention mainly comprises: a detecting device 1 by means of a The light source color and spectrum (blue light spectrum, fluorescent spectrum or white light spectrum) of the LED fluorescent material 4 (yellow fluorescent material) are detected by the combination of the starting light source device 2 and the optical integrating sphere 3 for emitting a blue light source. An analysis device 5 is connected to the detection device 1 by an analysis module 6. The analysis module 6 includes a spectral loading unit 61 for loading various LED fluorescent materials 4 or not. The absorbed spectral file is displayed on the spectral display unit 62; a spectral synthesis unit 63 is configured to synthesize and display various spectral waveforms displayed on the spectral display unit 62 to the spectral display unit. 62. A spectral calculation unit 64 is used for mathematical synthesis operations of adding, subtracting, multiplying or dividing the various spectra displayed on the spectral display unit 62; a spectral storage unit 65 is to be subjected to a spectral calculation Synthesis computing spectrum 64 for storage; a chromaticity coordinates generating unit 66, the above-described various spectral lines are displayed in a coordinate manner on the display unit 67 on the chromaticity coordinates.

Furthermore, the above-mentioned LED fluorescent material 4 is housed in a box which is directly sampled and non-destructive (the case is not shown in the drawing), and the surface of the case is provided with a high transmittance stone. Glass, while at the bottom is dominated by a highly reflective diffuse material.

Referring to the third embodiment, which is a block diagram of a preferred embodiment of the present invention, it can be clearly seen from the figure that the detection step is sample spectral signal acquisition A, quantitative correction conversion spectrum signal or call quantitative spectrum file. B, the conversion quantitative spectrum is the radiant power parameter and the visual light color parameter C, the spectral four arithmetic analysis and the simulated light color operation, or directly stored in the light color spectrum database file file D, the analysis and simulation of the completed spectrum and visual light color The data is stored in the spectral file database E. (The spectrum can be blue, fluorescent, or white)

Please refer to the fourth to thirteenth drawings at the same time, which are schematic diagrams of the light source path of the preferred embodiment of the present invention, and the schematic diagrams of the system screens one to eight. The detection method is also referred to the illustration, and the detailed steps are as follows:

(a) generating an initial induced blue light spectrum 7 by illuminating an induced blue light source through a starting source of a blue light source and passing an optical integrating sphere; (see Figure 4)

(b) the blue light source is irradiated onto the LED fluorescent material of the yellow fluorescent material by the optical integrating sphere, and then reflected back into the optical integrating sphere by 180 degrees to generate an absorbed induced blue light spectrum 71; Five maps)

(c) its initial induced blue spectrum 7 and the absorbed induced blue spectrum 71 are received by an analysis device and analyzed by an internal analysis module;

(d) displaying the initial induced blue light spectrum 7 and the absorbed induced blue light spectrum 71 on a spectral display unit 62 by a spectral loading unit 61 included in the analysis module; (see the sixth figure)

(e) re-transmitting the fluorescence spectrum 72 generated by the absorption-induced blue light spectrum 71 on the spectral display unit 62 through the spectral loading unit 61; (see the seventh figure)

(f) synthesizing the absorbed induced blue light spectrum and the fluorescent spectrum through a spectral synthesis unit to generate a white light spectrum 73 and displaying it on the spectral display unit 62; (see the eighth figure)

(g) performing an additive synthesis operation on the absorption-induced blue light spectrum and the fluorescence spectrum through a spectral calculation unit to generate a composite white light spectrum 74 and displaying it on the spectral display unit 62; (see FIG. 9)

(h) performing a subtraction operation on the initial induced blue light spectrum 7 and the absorbed induced blue light spectrum 71 by the spectral calculation unit to generate a fluorescence absorption amount spectrum 75 and displaying it on the spectral display unit 62; (refer to the tenth figure)

(i) again performing a spectral multiplication magnification operation through the spectral calculation unit to generate a reduced magnification synthetic white light spectrum 76 and displaying it on the spectral display unit 62; (see FIG. 11)

(j) again dividing the fluorescence spectrum 72 by the spectral absorption unit by the fluorescence absorption spectrum 75 to produce a radiation conversion efficiency value of the LED fluorescent material 77; (see Figure 12)

(k) The synthetic white light spectrum, the fluorescence absorption amount spectrum, the reduced magnification synthetic white light spectrum, and the radiation conversion efficiency value are stored in a spectral storage unit 78. (See figure 13)

Furthermore, the above spectral operation is based on the absolute spectral radiation power correction and quantification technology, and the spectral signals detected by the LED fluorescent material and the induced blue light are converted into quantitative absolute spectral radiation power, thus After the spectral conversion, relevant operational analysis can be performed, for example, white light spectral separation or synthesis-induced blue light and fluorescent light of LED fluorescent materials.

After the above steps are completed, the chromaticity coordinate generating unit can display the complementary color line structure or the color area structure. Referring to FIG. 14 to FIG. 18, it is a preferred embodiment of the present invention. The chromaticity coordinates of the graphs 1-5, as can be clearly seen from the figure, the method for displaying the chromaticity coordinate map is:

(1) generating an induced blue light spectral chromaticity coordinate 80 by converting the initially induced blue light spectrum 7 by a color function through a chromaticity coordinate generating unit 79; (refer to FIG. 14)

(m) the chromaticity coordinate generating unit 79 converts the fluorescence spectrum 72 by a color function to generate a fluorescence spectral chromaticity coordinate 81; (refer to the fifteenth figure)

(n) again through the chromaticity coordinate generation unit 79 to convert the synthesized white light spectrum 74 by a color function to produce a synthetic white light spectral chromaticity coordinate 82; (see Figure 16)

(o) The induced blue light chrominance chromaticity coordinates 80, the fluorescence spectral chromaticity coordinates 81, and the synthetic white light spectral chromaticity coordinates 82 are then co-loaded to produce a complementary color line structure map or a color area structure map. (See Figures 17 and 18)

More importantly, the test system and method of the present invention are constructed by using the Planck's law (the shorter the wavelength, the higher the energy), the higher the spectral wavelength of the fluorescent material, and the conversion. The lower the spectral wavelength of the energy, the basis of the quantitative spectroscopic detection technology formed by this rule, and subject to the international tracking standard correction (NIST), in addition to the qualitative detection of the sample, It is also possible to quickly quantify the sample concentration as a quantification. The relevant spectral parameters in the system have been corrected for the optical radiation optical power, using standard calibration techniques.

Visible spectrum data can be correlated with quantitative arithmetic operations through system software, and quantitative spectral operations can be adjusted through the CIE (Visual Human Eye Illumination Association) to establish the 1931 Color Matching Functions (Tristimulus values). Convert to the CIE1931 Chromaticity Diagram for color parameters (chromaticity coordinates, color temperature, color rendering index, primary wavelength hue and color purity) and Luminous Flux (lumen) brightness parameters, which can be designed The visual light color of different LEDs. The basic operation method of this method, the technical field in the absolute splitting radiation spectrum power integration C.I.E. visual color function conversion into the technical basis. And thereby guiding the user to change the radiation intensity of the absolute spectrum and the wavelength of the spectrum as a linear equivalent change parameter of the change of the visual light color characteristic.

Please refer to the 19th and 20th drawings at the same time, which is a schematic diagram of the CIE tristimulus value function and a schematic diagram of the 1931 chromaticity coordinate. The figure can be seen as the above-mentioned human eye tristimulus value function (1931Color Matching). Functions, Tristimulus values) and CIE 1931 Chromaticity Diagram (CIE 1931 Chromaticity Diagram).

In addition, the material of the fluorescence spectrum database can be qualitatively and quantitatively compared with the standard sample spectrum in the spectral database after sampling, and three sets of fluorescence efficiency (quantum (photon) conversion efficiency, radiation can be used. (Spectral) conversion efficiency, visual (lumen or other visual luminosity unit) conversion efficiency) value as a reference indicator, while paying attention to the absorption of the blue fluorescent spectrum induced by the absorption of the LED fluorescent material and the absorption rate reference LED fluorescent material absorbs blue light Quantitative spectral changes in spectra and output fluorescence. In the quality control of finished and semi-finished products, the LED fluorescent material is mainly mixed with other molding materials, and the absolute spectral intensity of the LED fluorescent material is proportional to the linear concentration of the LED fluorescent material, which can be used as a proportional change. The LED phosphor concentration control parameters are used to stabilize the process material during the molding process to maintain a stable concentration with the LED phosphor material. The concentration of the LED fluorescent material in the finished product of the same baking is also proportional to the intensity of the fluorescence spectrum and the concentration.

In terms of product development, the target specification visual light color is used as a reference reference, and the fluorescence spectrum of the induced blue light spectrum corresponding to the wafer in the fluorescence spectrum database is matched: finding the complementary color line color structure closest to its light color. The fourteenth to eighteenth figures further illustrate the combination of the color structure and the spectral change of the complementary color line. When the fluorescent material of the LED is not linearly able to find the corresponding complementary color structure, two similar LED fluorescent materials (two or more) can be found to synthesize the closest LED fluorescence spectrum, which is close to the target LED color. The newly synthesized LED fluorescence spectral coordinates can be adjusted to adjust the absolute intensity ratio of the LED fluorescence spectrum to produce the best fluorescent chromaticity coordinate points. This method is also applicable to the synthesis of white light on the complementary color line, and the light color condition of the white light also moves on the complementary color line with the intensity of the fluorescent light and the induced blue light spectrum, and changes the color parameter of the LED white light closest to the simulation.

In addition, taking the spectral calculation unit as an example, it is possible to calculate the ratio of brightness and color, and to determine the brightness of the blue light wafer, and to select the LED fluorescent material to produce a sample for the finished product, and the concentration can be seen. The difference is to determine the amount of LED fluorescent material, and in order to achieve these advantages, please also refer to the twenty-first to twenty-three figures, which are the waveforms of the blue spectrum and the fluorescence spectrum of the present invention. Second and third, the main calculation methods are as follows:

First, assume a standard chromaticity of 0.33, and after the spectrum is synthesized, it is 140 lumens (such as 22), and the brightness of a certain product is 7 lumens (brightness). In other words, to calculate the brightness ratio of the product. It can be calculated by the following formula (see also 21 and 22):

(B×1/20)+(Y×1/20)=(W×1/20)

(B/140)+(Y/140)=140

(B/140)=3%, (Y/140)=97%, wherein the blue light B and the fluorescent light Y are first reduced by 1/20, and the synthesized spectrum W is also reduced by 1/20; The first blue light condition, 97% is the second blue light condition and 3%+97% is the achieved brightness and color ratio of 100%. If the brightness of another product is not 140 lumens, but the above color value is desired. , can be manufactured according to the aforementioned percentage.

Therefore, the user only needs to obtain the aforementioned color according to the above percentage.

2. When selecting the LED chip, the LED chip to be used can also be selected through a reference value, and the reference value is calculated by the following formula (please refer to the first figure at the same time): (BB-B)×1/20= AB/20 (after being absorbed)

(B × 1 / 20) + (AB × 1 / 20) = C (wafer brightness)

Among them, BB is the blue light spectrum before being absorbed by the fluorescent light, B is the blue light spectrum absorbed by the fluorescent light, and Y is the fluorescent spectrum; therefore, the original (B×1/20) can be absorbed. (AB × 1 / 20), the brightness power and wavelength "C" required for the wafer can be obtained, whereby the user can select the LED chip to be fabricated.

3. At this time, when you want the concentration of the phosphor powder, you first need to select an LED chip (please refer to the 23rd picture at the same time). If the phosphor powder concentration is too thick or too light, the blue intensity B will be generated. Since the height of the phosphor powder W cannot be matched, it is possible to use the previously calculated phosphor powder reference value WS as a reference, and then assume that the phosphor powder having a too low concentration is W1, and the (WS÷W1) can be known. The multiple of the light concentration difference for the user to correct.

Therefore, the key to improving the light color and spectral detection method of the LED fluorescent material of the present invention is that:

First, the test optical path is consistent with the white LED optical path, which is convenient for the actual light color effect simulation.

Second, the difference between the present invention and the prior art is that non-destructive testing is adopted to ensure that the properties of the sample materials are consistent before and after testing.

Third, the fluorescent material is induced by the solid-state LED light source to generate fluorescence, so as to simulate the white light, blue light and fluorescent spectrum similar to the white LED.

4. The sample is 180 degrees vertically exposed to light (reflected or penetrated by the sample) and is optically approximate to the white LED. And the external sample tank test; to ensure a more convenient sample replacement space for the sample.

Fifth, the white light spectral decomposition (Curve Fittng) so that the white light color structure decomposition and white light coloring simulation changes in the color structure complementary color line.

Sixth, quantum (photon) conversion efficiency, radiation (spectral) conversion efficiency and visual (lumen or other visual luminosity unit) conversion efficiency can be obtained.

7. The white light, blue light and fluorescent spectrum can be quantified and digitally stored to establish a digital spectral database.

Eight, quantitative spectral operation: can calculate the absolute absorption and relative absorption rate of blue light induced by LED fluorescent materials.

Nine, provide absolute quantitative spectral arithmetic operation, as a visual light color simulation effect calculation of quantitative spectral database.

10. Ensure that the optical power of the induced source is stable to ensure stable and consistent fluorescence spectral power.

11. Using the same spectrum as the blue LED chip, the fluorescent material is directly induced to produce a fluorescent spectrum of the same structure as the actual white LED.

12. Based on the quantitative operation of the spectrum, a plurality of different fluorescent materials can be mixed in the spectral database operation mode, and the spectrum of the specific light color is simulated by directly mixing the respective spectra on the analysis software.

Thirteen, different wavelengths of the blue light spectrum of the wafer and the spectrum of the LED fluorescent material, can also be established as a spectral data library for LED light color adjustment simulation.

14. Using the color spectrum of the fluorescence spectral parameters and the induced blue light spectrum, the light color characteristics suitable for the LED fluorescent material can be determined without wasting any material at all.

Fifteen, direct sampling fluorescent sample test vehicle: need to have high penetration and high wear-resistant quartz glass and a fixed amount of sample placement area, and with the test optical path, the sample carrier surface needs to be diffuse reflection white surface.

However, the above description is only for the preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, so that the simple modification and equivalent structural changes that are made by using the specification and the contents of the present invention should be the same. It is included in the scope of the patent of the present invention and is combined with Chen Ming.

In summary, the LED fluorescent material light color and spectrum detecting method of the present invention can achieve its efficacy and purpose when used, so the invention is an invention with excellent practicability, and is an application for conforming to the invention patent. The application is made in accordance with the law, and the audit committee is expected to grant the invention as soon as possible to protect the inventor's hard work. If the audit committee has any doubts, please do not hesitate to give instructions, the inventor will try his best to cooperate and feel polite.

1. . . Testing device

2. . . Starting light source device

3. . . Optical integrating sphere

4. . . LED fluorescent material

5. . . Analytical device

6. . . Analysis module

61. . . Spectral loading unit

62. . . Spectral display unit

63. . . Spectral synthesis unit

64. . . Spectral calculation unit

65. . . Spectral storage unit

66. . . Chroma coordinate generation unit

67. . . Chroma coordinate display unit

7. . . Initial induced blue light spectrum

71. . . Absorbed induced blue light spectrum

72. . . Fluorescence spectrum

73. . . White light spectrum

74. . . Synthetic white light spectrum

75. . . Fluorescence absorption spectrum

76. . . Reduced magnification synthetic white light spectrum

77. . . Radiation conversion efficiency value

78. . . Spectral storage unit

79. . . Chroma coordinate generation unit

80. . . Induced blue light spectrum chromaticity coordinates

81. . . Fluorescence spectral chromaticity coordinates

82. . . Synthetic white light spectral chromaticity coordinates

The first figure is a block diagram of a preferred embodiment of the present invention.

The second figure is a block diagram 2 of a preferred embodiment of the present invention.

The third diagram is a block flow diagram of a preferred embodiment of the invention.

The fourth figure is a schematic diagram of a light source path according to a preferred embodiment of the present invention.

The fifth figure is a schematic diagram 2 of the light source path of the preferred embodiment of the present invention.

Figure 6 is a schematic diagram of a system screen according to a preferred embodiment of the present invention.

The seventh figure is a schematic diagram 2 of the system screen of the preferred embodiment of the present invention.

The eighth figure is a schematic diagram 3 of the system screen of the preferred embodiment of the present invention.

The ninth diagram is a schematic diagram of a system screen according to a preferred embodiment of the present invention.

Figure 10 is a schematic diagram 5 of a system screen according to a preferred embodiment of the present invention.

Figure 11 is a schematic diagram 6 of the system screen of the preferred embodiment of the present invention.

Figure 12 is a schematic diagram of a system screen according to a preferred embodiment of the present invention.

Figure 13 is a schematic diagram of a system screen according to a preferred embodiment of the present invention.

Figure 14 is a chromaticity coordinate diagram 1 of a preferred embodiment of the present invention.

The fifteenth diagram is a chromaticity coordinate diagram 2 of the preferred embodiment of the present invention.

Figure 16 is a third embodiment of the chromaticity coordinate of the preferred embodiment of the present invention.

Figure 17 is a chromaticity coordinate diagram 4 of a preferred embodiment of the present invention.

Figure 18 is a chromaticity coordinate diagram 5 of a preferred embodiment of the present invention.

The nineteenth figure is a schematic diagram of the CIE tristimulus value function of the present invention.

Figure 20 is a schematic view of the 1931 chromaticity coordinates of the present invention.

The twenty-first figure is a waveform diagram 1 of the blue spectrum and the fluorescence spectrum of the present invention.

The twenty-second diagram is the waveform diagram 2 of the blue spectrum and the fluorescence spectrum of the present invention.

The twenty-third figure is a waveform diagram 3 of the blue spectrum and the fluorescence spectrum of the present invention.

1. . . Testing device

6. . . Analysis module

61. . . Spectral loading unit

62. . . Spectral display unit

63. . . Spectral synthesis unit

64. . . Spectral calculation unit

65. . . Spectral storage unit

66. . . Chroma coordinate generation unit

67. . . Chroma coordinate display unit

Claims (4)

A method for detecting color and spectrum of LED fluorescent materials, wherein the detection method comprises: (a) emitting an induced blue light source through an initial light source and generating an initial induced blue light spectrum through an optical integrating sphere; (b) passing through the optical The blue light source induced by the integrating sphere is irradiated onto an LED fluorescent material, and then reflected back into the optical integrating sphere by 180 degrees to generate an absorbed induced blue light spectrum; (c) its initial induced blue light spectrum and the absorbed blue light spectrum are The analysis device receives and analyzes through an internal analysis module; (d) displays the initial induced blue spectrum and the absorbed induced blue spectrum by a spectral loading unit included in the analysis module. (e) re-transmitting the spectral loading unit to display the fluorescence spectrum generated by the absorption-induced blue light spectrum on the spectral display unit; (f) transmitting the induced blue light spectrum and the fluorescent spectrum through the spectral synthesis unit Synthesizing to generate a white light spectrum and displaying it on the spectral display unit; (g) adding and absorbing the absorbed blue light spectrum and the fluorescence spectrum through a spectral calculation unit Generating a synthetic white light spectrum and displaying it on the spectral display unit; (h) re-transmission of the spectral spectrum calculation unit to subtract the initial induced blue light spectrum and the absorbed induced blue light spectrum to generate a fluorescence absorption spectrum and display it on the spectral display unit (i) again performing a spectral multiplication magnification operation through the spectral calculation unit to generate a reduced magnification synthetic white light spectrum and displaying it on the spectral display unit; (j) dividing the fluorescent spectrum by the spectral calculation unit again A fluorescent absorption spectrum is generated to generate a radiation conversion efficiency value of the LED fluorescent material; (k) storing the synthesized white light spectrum, the fluorescence absorption spectrum, the reduced magnification synthetic white light spectrum, and the radiation conversion efficiency value in a spectral storage unit . The method for detecting the color and spectrum of the LED fluorescent material according to the first aspect of the patent application, wherein the detecting method further comprises: (1) converting the initially induced blue light spectrum by a color function through a colorimetric coordinate generating unit to generate an induced blue light spectral chromaticity coordinate; (m) transmitting the fluorescent spectrum by a color function through a chromaticity coordinate generating unit to generate a firefly The optical spectral chromaticity coordinates; (n) the chromaticity coordinate generating unit converts the synthesized white light spectrum by a color function to generate a synthetic white light spectral chromaticity coordinate; (o) the blue spectral chromaticity coordinate and the fluorescent spectral color are induced again. The coordinate coordinates and the synthetic white light spectral chromaticity coordinates are co-loaded to produce a complementary color line structure or a color area structure map. The LED fluorescent material light color and spectrum detecting method according to claim 1, wherein the starting light source is a blue light source. The LED fluorescent material light color and spectrum detecting method according to claim 1, wherein the LED fluorescent material is a yellow fluorescent material.