What is the difference between fluorescent fluorescent lamps neon lamps and neon lamps?

Difference: Fluorescent lamps emit light through ultraviolet light irradiated on the wall of the light, which is a cold light source; Fluorescent lamp is the light generated when electric current passes through a tungsten wire resistor and converts electrical energy into heat energy, which is a thermal light source.

Introduction: Fluorescent lamp, the traditional fluorescent lamp, that is, the low-pressure mercury lamp, is the use of low-pressure mercury vapor to release ultraviolet rays after the electricity is on, so that the phosphor emits visible light on the principle of light, so it belongs to the low-pressure arc discharge light source.

The fluorescent tube is based on the mercury atom of the lamp, which emits ultraviolet light (the main wavelength is 2537 angstrom = 2537 10-10m) by the process of gas discharge. About 60% of the electricity consumed can be converted into ultraviolet light. The rest of the energy is converted into heat.

Neon lights emit light by discharging a cold cathode glow with a low-pressure inert gas filled into a glass tube under a high-voltage electric field. The light color of the neon sign is determined by the spectral characteristics of the inert gas charged: the fluorescent tube neon sign is filled with neon gas, and the neon sign emits red light; Fluorescent neon lamps are filled with argon and mercury, and neon lamps emit blue and yellow light, both of which are stimulated by the working gas atoms in the lamp tube.

Neon lamps belong to neon lights.

Fluorescent lamps are also known as fluorescent lamps, and the two are one thing. The traditional fluorescent lamp, that is, the low-pressure mercury lamp, uses low-pressure mercury vapor to release ultraviolet rays after being energized, so that the phosphor emits visible light, so it belongs to the low-pressure arc discharge light source.

Typical fluorescent tubes are made of glass and have sockets at both ends to connect to the power supply and secure the position of the fluorescent tubes. Unlike light bulbs, fluorescent tubes must be equipped with ballasts that work with a starter to generate an instantaneous high pressure that ionizes the gas.

1. The principle of luminescence is different: fluorescent lamps emit light through ultraviolet rays irradiating the phosphors on the light wall, and fluorescent lamps are the light produced when the current passes through the tungsten wire resistance and the electrical energy is converted into heat energy.

2. The light source is different: fluorescent lamp is a cold light source, and fluorescent lamp is a hot light source.

3. Fluorescent lamps are energy-saving, and fluorescent lamps will produce a lot of heat energy.

4. The luminous efficiency of fluorescent lamps is not high enough, the thermal stability is poor, the light attenuation is large, the luminous flux maintenance rate is low, the fluorescent lamp does not need a brightener and ballast, the start is fast, the power is small, there is no flicker, and it is not easy to look tired. It is not only super energy-saving, but also environmentally friendly.

1. Precautions for fluorescent lamps.

1. Installation: LED comes with a constant current source, no need for ballast, starter.

2. Voltage: AC 85V - AC 245V, all can work normally.

3. Heat dissipation: prevent dust from covering the radiator and affecting heat dissipation.

4. Waterproof: LED fluorescent lamp because the tube is composed of two parts: there is a gap in the connection, it is recommended to add a protective cover.

5. Vibration: LED fluorescent lamp has a strong anti-vibration ability. As long as it is not a violent impact, it generally does not cause damage.

Second, the maintenance of fluorescent lamps.

1. Don't turn the lights on and off too often. Lighting the lamp too often will cause both ends of the lamp to turn black prematurely, affecting the output power of the lamp, and it should be noted that it takes 5-15 minutes to restart the lamp after turning off the lamp.

2. If the voltage is very low, the poles of the lamp will emit tungsten at the beginning of the lighting stage, so that many punctate pollutants will be produced inside the lamp, which will become one of the causes of the damage of the lamp, so it is recommended to turn on the lamp under high voltage conditions as much as possible.

3. There are many circuits of fluorescent lamps and auxiliary devices are needed, so they must be used with corresponding transformers and capacitors to ensure that the lamps are started to the appropriate power.

4. Pay attention to maintaining a ventilated environment, not only to take away dust, but also to reduce the temperature of the lamp, so as to prolong the life of the lamp.

1. Ordinary lamps are fluorescent lamps, and the luminous principle is different from LED lamps. Fluorescent lamp luminescence is the moment the ballast is energized, the high voltage is generated, the discharge between the two pins inside the lamp is excited, and then the phosphor is excited. This process produces a high heat.

LED luminescence is the migration of electrons inside the semiconductor, resulting in luminescence, and the luminescence process does not produce heat.

2. Traditional fluorescent tubes will produce a lot of heat energy, while LED fluorescent lamps convert all of them into light energy, which will not cause waste of energy.

3. The service life of LED can reach more than 50,000 hours (excluding power supply), and the service life of fluorescent tubes (excluding power supply) is 10,000-20,000 hours.

4. LED fluorescent lamp adopts the latest LED light source technology, digital appearance design, power saving up to 70% or more, 12W LED fluorescent light intensity is equivalent to 40W fluorescent tube (used for ballast and starter, 36W fluorescent lamp real power consumption is 42W to 44W).

Fluorescent lamps and bai

The name fluorescent lamp, so the fluorescent lamp is a fluorescent lamp. Fluorescent lamps are commonly known as zhi

Electric rod", dao is a slender cylindrical white opaque glass tube, (the white substance in the lamp tube is the phosphor that causes light, so it is also called fluorescent lamp), and there are two thin legs at both ends, because the light illuminated by the sun will not cause the object to change color, so it is called fluorescent lamp. Very versatile. In terms of modeling, there are also columns, rings, U-shapes and so on.

Its biggest feature is brightness, power saving, scattering, no shadow, is a typical lighting lamps and lanterns, the decorative effect is poor. Therefore, more attention should be paid to its lighting effect when purchasing. There is also a fluorescent energy-saving lamp, which has the same luminous principle and effect as the fluorescent lamp, and the light-emitting tube is generally a "U" shaped or spiral-shaped white opaque glass.

Because it makes the electronic ballast or something in the lamp head, it is not as troublesome as the fluorescent lamp installation, and can directly replace the ordinary light bulb (incandescent lamp), although it is a little higher, but the light effect is very good, and it is also energy-saving, and the brightness of a 16-watt energy-saving lamp is equivalent to a 60-watt bulb.

The light emitted by fluorescent lamps is white and bright; The light emitted by fluorescent lamps resembles sunlight (slightly reddish), so it is better to use fluorescent lamps at home.

Fluorescent lamps are divided into traditional fluorescent lamps and electrodeless fluorescent lamps, and the traditional fluorescent lamps are low-pressure mercury lamps, which use low-pressure mercury vapor to radiate ultraviolet rays during the discharge process, so that the phosphor emits visible light, so it belongs to the low-pressure arc discharge light source. Conventional fluorescent lamps are equipped with two filaments. The filament is coated with electron-emitting materials ternary carbonate (barium carbonate, strontium carbonate and calcium carbonate), commonly known as electronic powder.

Under the action of AC voltage, the filament acts alternately as a cathode and anode. The inner wall of the lamp is coated with phosphor. The tube is filled with argon at a pressure of 400pa-500pa and a small amount of mercury.

When energized, liquid mercury evaporates into mercury vapor with a pressure of Pa. Under the action of the electric field, the mercury atom is continuously excited from the original state to the excited state, and then spontaneously transitions to the ground state, and radiates the wavelength and ultraviolet light of 185 nm (the main peak wavelength is, accounting for about 70-80 of the total radiant energy; The sub-peak wavelength is 185 nm, which accounts for about 10 of the total radiant energy) to release excess energy. Phosphors absorb the radiant energy of ultraviolet rays and emit visible light.

Different phosphors emit different amounts of light, which is why fluorescent lamps can be made in white and various colors. Since most of the electrical energy consumed by fluorescent lamps is used to produce ultraviolet light, the luminous efficiency of fluorescent lamps is much higher than that of incandescent lamps and tungsten halogen lamps, and they are currently energy-saving electric light sources. In the process of discharge, the valence electrons of the mercury atom are continuously excited from the original state to the excited state, and at the same time, the excited state spontaneously returns to the ground state, converting the energy of the valence electrons into electromagnetic radiation energy, and radiating the initial ultraviolet rays (in addition, about 10% of the 85nm shortwave ultraviolet rays).

The phosphor on the inner wall of the butcher carrier tube absorbs the ultraviolet rays and converts it into visible light. Electrodeless fluorescent lamp is induction lamp, which cancels the filament and electrode of the traditional fluorescent lamp, and uses the principle of electromagnetic coupling to excite mercury atoms from the original state to the excited state. It has the advantages of long life, high light efficiency and good color rendering.

The fluorescent tube is a glass tube coated with a layer of phosphors (magnesium tungstate, calcium tungstate, zinc silicate, etc.) on the inner wall, and different phosphors can emit different colors of light. The lamp is filled with a thin inert gas (such as argon) and mercury vapor, and at each end of the lamp is a filament made of tungsten, which is coated with an oxide that emits electrons when heated. When the filament has an electric current passing through, the filament in the lamp emits electrons, which can also increase the temperature in the tube and evaporate the mercury.

As the temperature in the tube gradually increases, the mercury vapor is free, colliding with the inert gas molecules to discharge, when the mercury vapor arc discharge, it will radiate invisible ultraviolet light, and the ultraviolet light emits visible light after excitating the phosphor on the inner wall of the lamp.

Explanation of fluorescent lamps is commonly known as fluorescent lamps. A small amount of mercury and argon is filled into a vacuum glass tube, electrodes are installed at both ends, and the inner wall of the lamp is coated with a fluorescent substance. When energized, mercury vapor is discharged to produce ultraviolet light, which excites the fluorescent substance to emit visible light.

The fluorescent light line is soft, and the luminous efficiency is higher than that of ordinary electric lights, which is widely used in life and factory lighting.

Word Breakdown Explanation of Ying Ying (電) í faint light: 電然. Glowing candles.

Glowing (a shimmering appearance, as in "star glow"; b radiant and flamboyant appearance, such as "beauty is beautiful, face is glorious"). vision confused, bewildered : glowing (a bewildered; Stool Late B Delicate Void Chinese Ancient astronomy refers to Mars Explanation of the light lamp destroying the coarse burn Bright light.

Three Kingdoms Wei Ji Kang "Miscellaneous Poems": "The light is spitting out, and the mantle is long." ”