The function and purpose of neon lights What is the working principle of neon lights?
Neon lights are bright and luminous, energized glass tubes or bulbs filled with rare neon gas or other rare gases. It is a cold cathode gas discharge lamp. This kind of lighting is very common in today's urban life, but many people are right. It may not know much, so what are the functions and uses of neon lights? What is the working principle of neon lights? Don't worry, BENWEI LIGHTING is here to explain it to everyone, let's take a look.
Neon lights
Functions and uses of neon lights:
In the fashion concept of modern urbanites, scenery and light are a combination of rhythm. The proper arrangement of light and the spatial structure of the natural environment, the use of concealing-exposing, suppressing-raising, fully embodies the oriental civilization of traditional culture, reproduces the dialectical relationship of the humanistic atmosphere, increases the change of space, and forms a shift The night scene effect of the scene. Scientific scenery and light need analysis and understanding, landscape lighting needs appreciation and taste, and art needs deep thinking and understanding. Landscape lighting art must pass through light and lighting in order to produce vitality of life. Lighting can change the appearance of the environment. Artistic lighting and colors form a dynamic and static landscape of light, sound and color. It also shows the miniaturization, sculpture and fashion of landscape garden lamps, which embellish the natural environment.
The neon lamp is a traditional light source, a low-pressure gas glow discharge tube with cold cathode, which has a built-in electrode with a filament. The high-voltage bombardment produces cold electron emission and excites arc discharge, so that the gas atoms in the tube emit light by radiation. With the passage of time, the situation of neon light technology has made great progress. The processing of the electron tube by the new vacuum technology has enhanced its accuracy and consistency, and the life span has reached 10 000 h. The breakdown and operating voltage of neon lighting circuit components are very high. Because of their rich experience, neon technicians know how to install and use it safely. Choose a transformer with a lower open circuit voltage level, shorten the length of the wire as much as possible, and use high-quality insulating materials. With the advancement of neon light technology, the protection device adopts microelectronics technology to design and realize, through the microprocessor to control the brightness changes of the three primary color tubes, not only to control the neon lights on and off, but also to digitally dimming and color mixing, resulting in ever-changing, The colorful colors greatly enhance the rendering effect of neon lights, and improve the flexibility and higher reliability of neon lights. Neon lights are now standardized in design, manufacturing, and installation, and they also achieve the same attractive landscape effect as LEDs. Neon lights also have visual impact and artistic appeal. They use unique methods and shapes to reflect the enjoyment art of human pursuit of beauty in life. The natural or cultural landscape during the day is reproduced through moonlight, stars and lights, and the landscape effect at night is reproduced.
For home decoration, personalized lamps such as neon lights can also be used in various party activities and personalized exhibitions. The market demand and space are still not small. In terms of publicity, neon lights have a natural advantage because they are very eye-catching, especially in party activities. They are a very good background for shooting. Today with the development of social media, neon lights are very easy to spread, form word-of-mouth, and gain natural flow.
1. Internet celebrity shop
The decoration style of the most popular online celebrity shops is also decorated with neon lights, and the most traditional and ancient neon lights are used to decorate the most modern online celebrity shops. These two elements, one old and one new, make the unique style of the entire store particularly charming. Generally, most people who go to Internet celebrity shops are young people, and they have little understanding of traditional lighting such as neon lights. Therefore, traditional neon lights are the most novel and trendy style for this group of young people.
2. Variety show
In many variety shows, we often see neon lights, the main purpose is to attract attention and win more people's attention.
3. Studio City
Master viewers, don’t know if you noticed that neon lights and neon signs can be seen in many old neighborhoods or films with a sense of age. Because traditional neon lights are used less and less, so many streets full of neon lights can only be seen in movies, relive this street atmosphere with a sense of age. Most domestic studios use neon lights to decorate some streets in an old Shanghai style for filming.
4. Export abroad
Foreign countries have always liked to use neon lights to decorate bars, shops, home decoration, and event scenes. Foreigners love neon lights very much, so many neon lights are also exported abroad. For foreigners who like neon lights so much, I can only think that it may be a kind of feeling. , Affected by the environment since childhood.
Neon lights
What is the working principle of neon lights?
When the external power circuit is switched on, the output of the transformer will generate a high voltage of several thousand volts or even tens of thousands of volts. When this high
When pressure is applied to the electrodes at both ends of the neon tube, the charged particles in the neon tube are accelerated in the high-voltage electric field and fly to the electrodes, which can excite a large number of electrons. These excited electrons are accelerated in a high-voltage electric field and collide with the gas atoms in the lamp tube. When the energy of these electrons colliding with the free gas atoms is large enough, the gas atoms can be ionized to become positive ions and electrons. This is the gas ionization phenomenon. When the charged particles collide with the gas atoms, the excess energy is emitted in the form of photons, which completes the entire process of the neon light.
① Most neon lights use cold cathode glow discharge. When the cold cathode is working, the whole lamp basically does not generate heat, and the efficiency of converting electrical energy into light energy is high. Its life span is much longer than that of ordinary fluorescent lamps. For example, the quality can be guaranteed from materials, processing to installation. The life span of neon tubes can be as high as 2ooooh -3ooooh, which is not lower than zaooha cold cathode discharge lamps in my country’s local standards. A great advantage is that the number of switching times basically does not affect its life, so it is especially suitable for advertising lamps that need to be switched frequently.
②It relies on positive ions bombarding the cathode to make the cathode emit secondary electrons to maintain the discharge, so a certain cathode potential drop is needed to accelerate the positive ions to provide energy, and the cathode potential drop is about 100V---200V.
Neon lights
③In order to ensure that it can discharge in the normal glow discharge area and does not cause large cathode sputtering during work, the cathode must have a large enough area, otherwise the cathode current density will exceed the cathode position due to the large current flowing. Decrease and increase, become abnormal glow discharge, aggravate the cathode sputtering and shorten the life of the lamp tube.
④ When possible, the neon tube should be as long as possible, with a smaller inner diameter, and try to increase the ratio of the pressure drop in the positive column area to the total pressure drop of the tube to improve the light efficiency.
⑤In order to ignite the neon tube smoothly and work stably at a lower voltage, a high-voltage transformer must be equipped (mostly magnetic leakage type, but because it is bulky and consumes a lot of power, it will gradually be replaced by electronic type) and make reasonable matching to save engineering cost .
⑥Neon lights use alternating current to work, so the two electrodes alternately serve as cathodes and anodes, and the area distribution of their glow discharge also alternates in sequence direction. Due to the persistence of human vision, it can be seen that the glow is evenly spread over the entire tube. The luminous effect is much more ideal than using direct current. Therefore, the two electrodes should be as consistent as possible from material to processing.
⑦Because the neon lamp is a vacuum electric light source, it is necessary to pay attention to vacuum hygiene during the whole production process. The materials and production are strictly in accordance with the requirements of electric vacuum technology, so as to ensure the quality.
The above is the function and purpose of neon lights and the knowledge of what is the working principle of neon lights. Let me stop here. The content is for your reference only, and I hope it can be helpful to everyone.
