(1) factors that affect the LED downlight beam angle A.LED package appearance shape; B. The chop chant structure; C. Chip and its structure; D. Refractive index of encapsulated glue; E. Material quality consistency; F. The encapsulation process (ie, the height of the chip); (2) how to wrap a good angle - first of all have a good design A.LED mold roundness roundness consistency is better; B. Stent cup and cup size memory smoothness is better; C. Selected chip D. Select the appropriate refractive index of the glue;
With the LED lighting technology continues to progress, LED lighting because of its long life, environmental protection, energy saving lamps, no ribs and other characteristics of more and more light box manufacturers love. Let’s Analysis on the Cause of Fire of Rolling: Use a thin line, the line is overloaded. Each wire has a safe current that can be carried per square, and once the amount of current passing through the wire exceeds the safe current, it can cause the instantaneous heat of the wire to be too large, causing the wire to catch fire. For example, some of the market use of the shutter light 0.75mm wire, when used in the first time even if the main line, it will cause the circuit overload, the wire for a long time through a large number of current, it is easy to lead to roller curtain light, The Proposed to use 2.5mm ² line, to avoid the cable caused by too much security risks. Improper use of the line, resulting in short circ...
1.Weld line breakage For the "dead light", first of all we should determine whether the LED is short or open, if it is open, we will generally consider the LED lights inside the wire is broken. LED lights inside the wire break, resulting in LED no power supply voltage, which is one of the common causes of LED dead light. 2. Removal of solid crystal layer For some of the use of vertical chip LED lamp beads, the bottom of the solid crystal layer and the stent coating is a more common cause of death. 3. solder joints burned In some cases, the lamp beads die is not necessarily the problem of the lamp itself, there may be caused by the use of power supply. 4. Chip is subject to corrosion There are many reasons for the death of the LED, from the packaging, application, to use the various links are likely to die dead phenomenon.Through the analysis of the cause of the LED dead light is one of the important ways to reduc...
According to the safety performance of lamps, lamps are divided into four categories, namely: 0 class lamps: rely on the basic insulation as anti-electric shock protection - only by the wire pvc insulation. If the basic insulation failure (wire damage: such as broken when the line,) resulting in electric shock, fire hazards. Protection against electric shock had to rely on the environment. Class I Lamps: Protection against electric shock not only depends on basic insulation, but also includes additional safety measures, that is, easy to reach the conductive parts connected to the fixed line in the protective grounding conductor, so that the conductive parts can be touched in case of basic insulation failure Not charged. (0 class lights + ground) Class Ⅱ lamps class Ⅱ luminaire Ⅱ class definition of lamps: Protection against electric shock not only depends on basic insulation, but also with additional safety measures, such as double insulation or reinfo...
Performing arts as a combination of time and space art, require a space to maintain the relationship. Stage artists in the transcendence of time and space constitute a sound, light, color and other multi-dimensional factors of visual and auditory creative space, and with the time, as well as the plot, the scene and the continuation of the development. 1,In the limited space express infinite space There is a huge change in the space effect in the performance. Real space and virtual space performance: the specific stage space and the special stage of the form of speech voice: dialogue: monologue and so on. The actual space environment to transform and expand, or to exaggerate or to reduce the description. 2, the stage lighting changes the way (1) to change the plot is the opportunity of space changes. (2) to identify the dialogue is the opportunity to change the lights (3) to determine the act is the opportunity to change the action lights (4) to music or soun...
1, monochrome of car LED is good and colorful. Color saturation of 130% full color, so that the light is more clear and soft. 2, long life, good shock resistance. Car LED is a semiconductor component, and incandescent different, no glass, tungsten and other vulnerable parts, the fault is very low, you can avoid maintenance. 3, Short response time, only 60 nanoseconds, especially suitable for automotive light source for the driver to win a valuable time to reduce the accident. 4, High efficiency, low energy consumption. Car LED light source does not need to filter can directly produce automotive lighting needs red, amber and other colors, no loss, power utilization up to 80% or more. 5, Small size, light weight . The use of its characteristics can be designed and thin, light, and compact variety of styles of lamps, to provide space for automotive design. 6, Green lighting source. Car LED spectral monochromatic good, no excess inf...
What are the requirements for supermarket LED lighting? Supermarket is not only the place to buy goods,but also to create a suitable environment for leisure. LED lighting in the expressive force has a strong advantage. Supermarket's lighting design is the behavior of customers to buy goods, in the process of browsing, selection process, according to the customer's visual requirements and the characteristics of a variety of different commodities, each goods in space, scientific design, in order to achieve customer comfort The visual effect. Reasonable brightness, good color rendering index, the appropriate brightness distribution, and comfortable visual environment. A reasonable lighting design, can attract customers' attention to the goods, in creating a comfortable shopping environment, to stimulate customer desire to buy. The illumination and color temperature affect people's psychological feelings LED light not only has the function of ligh...
The new version of LED road / tunnel lighting products, energy-saving certification technical specifications and certification rules implementation since March 1, 2017. And CQC will use the new technical specifications to implement certification and certification. The technical specifications of the old and new version of the differences are as follows: 1, range, remove the LED road lighting products can only be used for secondary roads and slip restrictions; increase the photovoltaic power supply LED road lighting products; 2, normative reference documents, according to the relevant national standard and IEC standards to update the latest system to update, increase GB / T 24827 "road and street lighting performance requirements" 3, terms and definitions, increase the "photovoltaic power supply LED road lighting products"; 4, cancel the specification classification; 5, the rated luminous flux step to the provisions of the photovoltaic pow...
Dr. Mohab Ibrahim of the University of Arizona in the United States accidentally found that headache sitting under the trees, it seems analgesic effect. Out of curiosity, he decided to be a simple experiment to test whether the green light really can relieve chronic pain. Headach Dr. Mohab Ibrahim led a team of three experimental white mice with neuropathic pain. They put the first group of mice on a transparent plastic container with green LED light strip, which lasts for eight hours a day for five days. The second group of rats is placed in the general indoor lighting environment, but wearing special contact lenses, allowing only green eyes through the mouse. As for the third group of control group of white mice are wearing opaque contact lenses, can not see any color of light. The results showed that compared with the control group of white mice, the first two groups can withstand greater temperature and tactile stimulation, the pro...
In recent years, due to the fierce price competition, products in the traditional areas to promote the profits are diluted, LED lighting business difficult, "fought" new areas have become the desire of enterprises. On the other hand, the domestic auto sales market fiery unabated, so that enterprises see the LED lighting after the era of the new direction. Because of the combination of electronic components with the electronic components of the car structure, the technical content is high. The general downstream lighting production enterprises are discouraged by the technical strength, but this is a golden opportunity for the upper reaches of enterprises with technical strength. On the one hand, companies can use the vast market of automotive sales for their own huge profits at the same time, polish their own piece of "gold signs"; the other hand, through the manufacture of the whole car lighting, the middle reaches of the enterprise can join the do...