1. Media: Lighting diode (LED) as a emerging emitting body, with high electro -optic effect, small volume, long life, low voltage, energy saving and environmental protection, etc., is the first choice device for new generation of lighting. The growth of LEDs has been accepted by the national table, and new products and new crafts are stacked. In recent years, LED property has grown agile, the light efficiency has continued to increase, and the brightness has continued to increase. Now, LEDs have obtained the use of year -on -year use, especially the inexhaustible forward of white light LED technology, making it gradually popularize in the field of lighting. The growth of LED property is shown in Figure 1. 2. LED work principle: Lighting diode (LED) is a solid device that can convert electrical energy into optical energy. Its layout is mainly composed of PN chips, electrodes and optics systems such as PN chips, electrodes, and optics systems. The foundation of LED's foundation is a process of electro -light conversion. When a positive bias pressure is applied to the two ends of the PN knot, because the PN tenth of the power is decreased, the positive charge of the P area will be distinguished to N. Differential scattered, at the same time, constitute a pile of non -balanced charge in two areas. Because the small carrier injection occurs in the current is relatively endless, the non -balanced empty acupoint injected into the price zone should be compounded with the electron in the guide zone. Radiation, the worse the energy of the electronics and the cave, the higher the photon energy that occurs, the higher the energy that occurs. The energyweight is different, the frequency and wavelength of light are different, and the color of the response light will be different. LED work principle is shown in Figure 2. LED lamp bead model price 3, LED's light parameters 3.1 Light flux: light flux is the amount of light emitted during the light source, that is, radiation power (or radiation flux) can be infected by the human eye vision system. The symbol of the optical flux isφThe unit is lingering (LM). Following spectral radiation fluxφ((λ), From the following formula, the amount of light flux:φ= Km φ((λ) GV (GV (λ)ofλIn the formula, V (λCure—Relatively spectral light vision; km—The most night value of radiation spectral light vision, the unit is LM/W. In 1977, the KM value was affirmed by the International Metrology Commission of 683LM/W (λM = 555nm). 3.2 Light intensity: The luminous intensity of the light source on the given target I is the optical flux D.φExcept for this three -dimensional corner DωThe business, that is,: I = The unit of light emitting intensity is Kandera (CD), 1cd = 1LM/1SR. The sum of the light of the purpose of the space of the space is the flux of light. 3.3 Brightness: The brightness L at a certain point on the Overview of the Light Source is the luminous intensity of the DS DS on the given target. Business, that is,: L = The unit is Cantra per square meter (CD/M2). When the outline of the light emitting is vertical with the purpose of the measurement, then COSθ= 1. 3.4 Lightness: The illuminance E of the Overview is the optical flux of the incident on the point of the dot.φIn addition. That is: E = Unit is Lx (LX), 1LX = 1LM/M2. 3.5 Other parameters: LED's light parameters are also encompassing: spectrals, color coordinates, main wavelengths and color purity, color heating and related color temperature, color rendering, color rendering index, etc. 4. LED light -color measurement needs 4.1 Avoid risk: LED is different from traditional lighting, it has the characteristics of a little light source, high brightness, narrow light beam output and other characteristics. When the LED is used in the underworld, if the light corner is not strictly controlled, a strong glare will occur. Some high -brightness LED products will even cause the risk of light radiation to the human body. Light color measurement can be used for the safe utilization of LED. 4.2 Promoting the growth of LED property: The light color measurement of LED can provide attempts that can provide the annual amount, which can be used as the scale of the appraisal LED product and whether it is or not. 5. The light color measurement method of LED 5.1 Measurement of the Light Flike 5.1.1 Points method: Test the strong light of the LED on each target, and then calculate these light value Cure. 5.1.2 Points Ball method: Point balls, also known as Lighting Ball, are a hollow full global shell. Apply white reflective layer in the inner wall, and the inner wall of the ball is shot on average. The light source that occurs on the ball wall is superimposed from the light degree that occurs repeatedly reflected light. It can be seen from the principle of integral science. The lightness on the sphere is proportional to the light source of light source light. Show. However, due to the differences of the physical layout and nature of the scale light (such as receiving), the test results are required when manipulating the volume of the volume. 5.1.3 2πTest of three -dimensional corner light flux: There is also a test layout (as shown in Figure 5) when manipulating the volume of the volume of the volume ball, which is called the test of the front light flux or 2πStereo corner light flux. This test is actually not the total light flux of the LED, but people often mix it with the total light flux of the test LED. 5.2 Light intensity measurement: For the test of LED light, CIE-127 sets two test premises, as shown in Figure 6 and table. 5.3 Brightness: The test of LED brightness is used in the process of testing the brightness of the LED chip and evaluating the safety of LED light radiation. The test generally adopts the imaging method. The test of the chip can be measured by micro -imaging, as shown in Figure 7. 5.4 Light degree measurement: Strictly speaking, the light degree cannot be regarded as the optical parameters of LED. Because the lighting of real places in general environment is completed by multiple LEDs. 5.5 Measurement of other parameters: other parameters such as color coordinates, main wavelengths and color purity, color heating and related color temperature, color rendering, and color rendering index can be manipulated. 6. LED's light radiation safety test and evaluation: In recent years, the LED's light radiation is more and more concerned. Zhejiang New Year's Eve Three -color Instrument Co., Ltd. started the research of light radiation testing in China in China. In the middle of the national electrical source detection. At present, the three colors of Zhejiang have made new progress in the light radiation test of LEDs. Lighting LED testing for PHILIPS has been conducted, and the LED radiation safety testing system with China's independence property rights has been studied. The process of introducing LED light radiation safety testing and evaluation is introduced below. 6.1 Tested white light LED 6.1.1 LED Premise: Light -tube current 0.417A, voltage 12V DC, power 5W. 6.1.2 The texture of the object and the spectrum (as shown in Figure 8) 6.2 Test of the indecent light source of the table: As shown in Figure 9, our manipulation of the index light source test system was tested by the white light LED. 0°(Positive) and 90°The purpose of the target is 10°The image obtained from the shooting is not an elegant light source. In theory, we should conduct light and peaceful tests at the purpose of each target, but for simplicity, this article is only 0 to 0 to 0°The environment of the target purpose is to test and evaluate (because the target target has the strongest output), other angles can be pushed. 0°The target table of the target is not elegant light. 6.3 Test premise 1: In accordance. The white light LED hole is 2m from the light collar, and the diameter of the light collar is 50mm in diameter. Test results explanation: Category 1 AEL calculates 400 to 600nm optical chemical risks: the thermal risk of not delineating AEL400 to 700nm: Ael that does not delineate AEL700 to 1400nm: Unable to delineate AEL conclusion: The white light LED is 1 test premise 1 1 The measured light radiation output of the lower -testing of the AEL delineation that does not span 1 type of laser products. 6.4 Test prerequisite 2 White light LED light -out hole is 100m from the light collar, and the diameter of the light collar is 7mm. Explanation of test results: (1) Category 1 AEL calculates 400 to 600nm optical chemical risks AEL: Disable AEL conclusion: The white light LED span 1 type of laser product photochemical risk AEL delineation, does not belong to type 1 products 1 product. (2) Category 2 AEL's calculation of 400 to 700nm AEL: Ael, which does not delineate AEL700 to 1400nm: No leap -off AEL conclusion: The white light LED test the test premise 2 Test the 2 types of laser products AEL delineation delineates. 6.5 Prerequisites for radiation degree or radiation test: The test layout of the test premise in the test process 2 and the test premise of radiation or radiation testing is not different. The white light LED light radiation output span 1m of AEL. 6.6 Conclusion: Based on the above explanation, it can be known that the test white LED product is a type 2 LED product. However, in the general environment, because people's eyes have a blink of an eye, natural evasion reflections, so that they will not cause danger to people's eyes. According to the above introduction, it can be seen that the test and evaluation of LED light radiation is a very complicated process. Touching many aspects. However, the test and evaluation of LED light radiation peacefulness has gradually become a rare content in the test of LED products. For example, all LED products sold in Europe must be in accordance with EN-60825 (equal to IEC-60825) scale. Inspection. Therefore, we should put on the research investment in the category of the year. 7. LED light -color measurement and lighting evaluation: The ultimate goal of LED lighting is to get the best lighting results, and the black and white of determining the results of the lighting depends on the light color measurement of LED. 7.1 Evaluation of lighting at this moment: The current lighting evaluation is mainly based on several primary optical foundation: light flux, brightness, light intensity, and light degree. Evaluation of light source light radiation sensor surface. These optical foundations are obtained according to the biophysical characteristics of the human eye, and they are also a spectral light vision function V (CIE) recognized by an International Lighting Commission (CIE)λ) The results of the corresponding radiation hugs are enough to know the relationship: light arms (λ) = Kmgv (λ) Radiation embrace (λ) In the formula, km—683lm/w. 7.2 Existing problems and deficiencies: The biological physical mechanism of human eyes is very complicated, and the response to light stimulation in the different environment is also different. The central vision is particularly complicated. It is based on the above spectral light vision effect. As shown in Figure 10, the stimulus value of a uniform light source to the eyes of people's eyes is different from the visual and dark vision. In addition, the current domestic lighting evaluation lacks consideration of the safety of optical creatures, which may cause the risk of differences in the human body. 7.3 Solution 7.3.1 Test method and instrument: Take a full spectral method to measure the spectral distribution of LEDs, and then manipulate the spectrometer for dating test. 7.3.2 Evaluation method (1) Lighting results: According to the visual premise of divergent visual premise, a different spectrum light vision function is weighted by the LED spectrum distribution data, and the actual lighting result of the measurement of the metering source is radiated under the corresponding visual premise. For example, the dark vision spectrum light vision function is adopted during the secret vision. When the visual vision is visually visual, the visual spectrum light vision function is adopted. (2) Light -biological safety: According to the type of risk, the corresponding result function function weighted LED spectrum distribution data to obtain real risk results. In short, LED lighting evaluation should be suitable. 8. Summary and Zhanwang (1) The growth of LED property is inseparable from the LED light -color measurement technology. In order to conform to the lighting of LED, the future light -color measurement technology should be broken. (2) LED lighting and light color measurement shall be rewarded, and everything is guided by the actual requirements of human beings. (3) Current mission: Enhance the research of the fundamental theory of biology related to the human body, and enhance cross -cooperation of disciplines; In connection with international standards, accelerate the formulation and implementation of normative documents, try their best to intervene in international renowned internationally renowned internationally renowned well -known internationally renowned internationally renowned internationally renowned Organization; Grand research investment in the New Year's Eve, and research and development of light -colored measuring instruments with independent common sense property;.

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap

According to Liu Wenke of the Agricultural Environment and Sustainable Development Research Institute of the Chinese Academy of Agricultural Sciences, the accumulation of self -toxic substances in the closed -end soilless cultivation, while the ultraviolet light catalytic degradation of the root secretions and rice shell degradation in the nutritional solution of the nutrient solution Products, solar light contains only 3%of ultraviolet light and facility coverage materials such as glass filtering by more than 60%, and cannot be applied in facilities; the low temperature widow photos of the vegetables in the anti -season of vegetables make it low and poor stability, and cannot meet the facility vegetable factory Demand for production. Countries around the world are actively studying the feasibility of using UVLED as a group training light source. In terms of monochrome light on the cultivation of seedlings, research has found that red light UVLED can promote the growth of seedlings in orchid groups, but the chlorophyll content, stems and roots are slightly lower than the fluorescent lamp than fluorescent lamps. Change the light quality by using UVLED to supplement monochrome red light or far red light, and then control the length and growth of potato groups to cultivate seedlings. Studies believe that the excessive extension of the fry stems in the red light UVLED and the chrysanthemum group causes the stem and poles to be fragile, and other important indicators have also decreased. Generally, it is not conducive to the normal growth and development of the plant. The main reason is that monochrome red light has led to the unbalanced distribution of light energy available in the system, which inhibits the growth of the stems. Studies have found that all genomocal grape group cultivation of grape groups under the process of pure red light UVLED is significantly longer than the fluorescent lamp treatment, but the chlorophyll content and the number of leaf pores are based on monochrome Blu -ray UVLED, red red, red red, red red, red red, red red, red red, red red, red red, red red, red red, red, red, red, red UVLED. Light UVLED processing is the lowest. This shows that the height of the plant plant is directly related to the root ratio. The red light of the long wavelength is necessary for the built -up of the grape root. Detailed information description Welcome to log in.

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap

What are the four parameters of the LED module light source lamp? Let s introduce the four major parameters: the LED module light source light tape parameters are color: this is a basic parameter, different colors are applied in different occasions. According to the color type, it can be divided into three types: monochrome, colorful, and full -color single -point control. Monochrome is a single color and cannot be changed. You can work after connecting the power supply. Colorful is that the entire string of modules can only be the same color, and cannot achieve different colors of a single module. In simple terms, only all modules can only achieve the same color at the same time. Inter -changing. A single point of full color is to control the color of each module. When the number of modules reaches a certain degree, the effect of display pictures and videos can be achieved. You need to add control systems to achieve the effect of colorful and full -color single points. We will introduce the control system selection and application in detail in the control system chapter. LED module light source lamp band parameters are voltage: this is a very important parameter, the current 12V low -voltage module is more common. When connecting the power supply and the control system, you must check the correctness of the voltage value in order to power the power, otherwise it will damage the LED module. LED module light source light band parameters III is working temperature: that is to say, the temperature of the normal work of LED. Usually between -20 60 , special treatment must be performed if the required range is relatively high. The LED module light source lamp band parameters Fourth is the lighting angle: the LED module that does not have a lens is mainly determined by the LED. The different light angle of LED is also different. Generally angle.

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap

The UL authentication AC light source module is a large -scale optical design, heat dissipation design, modeling, size design, and interface standardization design according to any form of application. And the function of replacement modules based on life, to largely reduce user costs. And the color rendering index (the ability to reproduce the real color) as one of the three important indicators to measure the quality of the white light source, and it is also an important criterion for measuring whether the LED light source module is healthy. The position in various indicators in the field of lighting is particularly obvious. Instructions for use: 1. At this stage, the light source of the light -emitting characters is mainly commonly set in the input voltage of LED, five lights, and six lamps with the input voltage of DC12V. Therefore, if you do nt install the switching power supply when installing the light, do nt do nt put the luminous characters or the UL authentication AC light source module directly into the market to communicate 220V, otherwise the LED light source will burn out due to the high voltage voltage and burn out the voltage. 2. In order to avoid the long -term load work of the switching power supply, the switching power supply and LED load power is better at 1: 0.8, and the service life of the product will be more secure and long -lasting according to this. 3. If the module exceeds 25 groups, it should be connected separately, and then connects to the light -emitting box in parallel from high -quality copper core wires greater than 1.5 square millimeters. Increase the line diameter. In order to avoid short circuits, the end of the module must be cut and pasted. When necessary, use a self -attack screw to fix the outdoor use. 4. To have enough brightness, UL authentication AC light source module spacing brightness needs to be between 3 and 6cm, and the thickness of the word can be selected between 5 and 15cm. 5. In the process of using the UL authentication AC light source module, be sure to pay attention to the problem of voltage drop. Never do only one loop, from the first series of connecting tail. This will not only make the brightness inconsistent due to the different voltage between the first and tails, but also the problem of excessive single -circuit current burning the circuit board. The correct approach is to connect as much as possible to ensure that the voltage and current distribution is reasonable. 6. If you need to use anticorrosive materials inside the word cavity, try to use white primer to increase its reflection coefficient. The above is a description of UL authentication AC light source module usage.

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap

The LED patch lamp belt is still buying regular manufacturers to have quality packaging. Look at the cleanliness of the LED patch lamp with an overview: adopt the LED patch lamp belt produced by SMT process, the cleanliness of its overview is very good, no impurities and stains can be seen. The LED patch lamp belt produced by the hand welding process, regardless of the cleaning, the city residue with stains and cleaning the traces of the city. Look at the packaging: The regular LED patch lamp belt will be packaged with anti -static roll plates, 5 meters or 10 meters of volume, and then the inside of the packaging is used to use the secret seal of the moisture -proof packaging bag. The LED lamp belt of the robber version takes the receiving roll disk, and there is no anti -static moisture -proof packing bag. Carefully see the scroll disc. Look at the label LED lamp bead model and picture: the regular LED patch lamp belt packaging bag and the cities on the roll plate have print labels, not printing labels. Look at the solder point: The LED lamp band produced by the regular LED patch lamp is the SMT patch process, which is produced with a sacral paste and backwing welding. Therefore, the solder joints on the LED patch lamp are slippery than the force and the amount of weld is not large. The solder joints are arc -shaped from the FPC pad to the LED electrode. Look at the quality of FPC: FPC is divided into copper and pressing copper. The copper foil of the copper plate is protruding. The pressure extension copper is closely intimate and the FPC is integrated, which can be bent freely without showing the phenomenon of pads off. If the copper plate is too bending, the pads will fall off if the bend is too much. If the high crosses during maintenance, the pad will also cause the pad to fall off.

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap