What controls the change of neon signs

Neon has been around for 100 years and has contributed greatly to the creation of a vibrant, vibrant, bustling and joyful atmosphere in a city. Therefore, as an important decorative lighting source, neon has gained rapid development and widespread application. At the same time, the research on gas discharge mechanism and the development of novel technologies have also aroused great interest and attention.

At present, the neon lights sold in the market, generally after the gas charged into the lamp and coated with phosphor, it can only emit one color of light, if you want to comprehensively express a variety of colors, you must install a plurality of neon tubes of different colors, cross the front and back of the same letter or image, and then through the power control system, make the neon lights of different colors in turn, in order to achieve the effect of color change. Not only is there a lack of artistic styling, but also multiple neon tubes are required, which adds a lot of difficulties to the installation process and control equipment. Therefore, the research and practical application of novel color-changing neon signs has become very urgent.

1. Realize the analysis of the control mechanism of neon monochrome tube discoloration.

Neon lamp belongs to a kind of cold cathode low pressure discharge lamp, in the case of different electronic temperatures in the discharge tube, the negative glow region on the side of the cathode due to the presence of more atoms in the high-energy excited state, and in the positive column area on the anode side due to the presence of more excited atoms in the low-energy state, so different spectra will be emitted in two different regions, if we can change the temperature of the electrons in the discharge positive column area and be able to control it, we can achieve the purpose of changing the discharge color of the lamp. In order to control the energy of the input electrons and the radiant energy in the discharge tube, we try to control the change of color by controlling the variation of the following two different parameters.

Transformer & Jump Machine Jump machine can control the change program of neon signs.

Now you can see neon signs on the streets and alleys, neon lights not only play the role of advertising, but also beautiful, the decorative effect is particularly good, in the face of so many neon lights, you knowWhat are the characteristics of neon signsIs it? It doesn't matter if you don't know, let's take you to see what the characteristics of neon lights are!

Decorate parks and street lights at night to enhance the beauty of the city and make citizens feel the charm of the city. This is one of the functions of neon signs.

What are the characteristics of neon signs

1. Appearance. Neon is made of glass tubes, after firing, the glass tubes can be bent into any shape, with great flexibility, by choosing different types of tubes and filling with different inert gases, neon lights can get colorful, multi-colored lights.

2. Energy consumption. Nowadays, with the continuous development and innovation of science and technology, the manufacturing technology of neon signs and the manufacturing level of related components are also constantly improving. The application of new electrodes and new electronic transformers has greatly reduced the power consumption of neon lights, from 56 watts per meter to 12 watts per meter.

3. Voltage. The diameter of the neon tube is usually small, generally 6 20mm, and the tube is usually very long, its function is to obtain a large voltage drop to increase the light efficiency of the lamp. The long tube and large voltage drop make neon signs usually equipped with a high-voltage transformer (secondary voltage 6 15kV).

4. Lifespan. The life of neon lights is more than 10,000 hours under the condition of continuous work and uninterrupted power, which is difficult to achieve by any other electric light source.

5. Work restrictions.

Because of its cold cathode characteristics, the temperature of the lamp is below 60°C, so it can be placed in the open air in the sun and rain or work in water. Also because of its working characteristics, the neon spectrum has a strong penetrating power and can still maintain a good visual effect in rainy or foggy days.

A lot of neon lights are combined and can even be set up to form a pattern, which is fascinating and makes visitors enter a fantastic world. The above are a few characteristics of neon leaks, I hope that sorting out the game can give you some help.

Principle: The principle of light emitting neon lights after being energized is similar to that of sky lightning, which is also a gas discharge phenomenon. When the tube is energized, the gas molecules gain energy and are continuously ionized into free electrons (negatively charged) and positive ions (positively charged).

At the same time, the opposite process is constantly underway, and the positive ions and electrons are recombined to form molecules. In the process of compounding, the excess energy is released in the form of light energy. Different gas molecules, due to their different compositions and structures, emit different amounts of light energy in the compound, so various colors appear.

Neon is a physical change.

Neon is a bright, luminous, energized glass tube or bulb filled with dilute neon or other noble gases, and is a kind of cold cathode gas discharge lamp. A neon tube is a sealed glass tube with electrodes at both ends, which is filled with some low-pressure gas. A voltage of several kilovolts is applied to the electrodes, and the gas in the ionization tube causes it to emit light.

The neon glow does not produce new substances, but only makes the gas glow by voltage, and the basis for judging whether a reaction is a chemical reaction is whether the reaction generates new molecules. So it's a physical change.

Physical changes, no new matter is created.

The principle of neon lamp is in a closed glass tube, filled with neon, helium, argon and other gases, two metal electrodes are installed at both ends of the lamp, the electrodes are generally made of copper materials, the electrode leads are connected to the power supply circuit, equipped with a high-voltage transformer, and the voltage of 10 15kV is added to the electrodes. Since the gas inside the tube is made up of countless molecules, the molecules are neutral to the atoms in the normal state. Under the action of high voltage, a small number of free electrons move to the anode, and the sharp free excitation of gas molecules accelerates the movement of electrons, making the gas in the tube conductive and emitting a color glow (also known as rainbow).

The luminous color of the neon principle is related to the gas used in the tube and the color of the lamp; Neon Principle: If neon gas is installed in a pale yellow tube, it will emit golden light, and if neon gas is installed in a colorless transparent tube, it will emit yellowish-white light. Neon PrincipleIn order to produce different colors of light, it is necessary to use many different colored tubes or fill different gases into the neon tubes.

The neon light screen is composed of a continuous light tube and a dynamic illuminated scanning tube, which can be set to seven color scans: jumping scanning, gradient scanning, and color mixing and color changing. The scanning tube is controlled by a scanner equipped with a microcomputer chip programming, and the scanning tube turns on or off according to the programmed program, forming a pair of flowing pictures, like a rainbow in the sky, like the Milky Way on earth, and more like a dream world, which is fascinating and unforgettable. Therefore, neon is a form of advertising that is less expensive, more effective, and more economical and practical.

Urban neon lights are usually filled with different noble gases, and if the tube is filled with helium: red light; Neon: red light; Argon: light blue light; Krypton: blue-purple light; Xenon: white intense light (commonly used in marine lights, square lights, etc.).

Hello dear, the neon glow time is related to the following factors:1Voltage and current:

Neon signs need to be emitted by electric current, so the stability of voltage and current is very important for the time of neon light. If the voltage and current are unstable, the neon sign may go out quickly or break down prematurely. 2.

Tube Material: The tube material of a neon sign will also affect its luminous time. In general, glass tubes are more durable than plastic tubes, so glass tubes will shine longer under the same conditions of use.

3.Temperature and humidity: Neon signs are easily damaged in high temperature and high humidity environments, so if the ambient temperature and humidity are too high, the light time of the neon sign may be shortened.

4.Frequency of use: The frequency with which neon signs are used will also affect how long they glow.

If the neon sign is left on for a long time, its glow time may be shortened. To sum up, the luminous time of neon lights is affected by a variety of factors, and it is necessary to pay attention to issues such as environment, power supply stability and frequency of use, in order to prolong its service life.