Industry news

2016August

The advantages and disadvantages of incandescent lamp, fluorescent lamp, energy

From: www.szbako.com Data:02/08/2016



incandescent
incandescent lamp is also called electric lighting, its working principle is the heat produced when the current through the filament (tungsten, the melting point of more than 3000 degrees Celsius degrees), a helical filament will continue to accumulate the heat, makes the filament temperatures up to 2000 degrees Celsius degrees above filament when in a state of incandescent, like burning red iron can shine like a light. The higher the temperature of the filament, the brighter the light is. It is called incandescent lamp. When the incandescent lamp is illuminated, a large amount of electric energy is converted into heat energy, only a very small part (probably less than 1%, not calculated) can be converted into useful light energy.
incandescent lamp that emits light is full color, but in every kind of color composition ratio is by luminous material (W) and temperature. The imbalance of the proportion of the color of the color of the light, so the color of the object under the incandescent light is not true.
incandescent lamp life is related to the temperature of the filament, because the higher the temperature, the more easily the filament. The sublimation of the fluorescent lamp at both ends of the blackening process is: Tungsten directly into gas tungsten, the gas tungsten met low temperature of tube wall and sublimation in the wall of the lamp tube and blackened.
when tungsten sublimation compared to thin, electricity is very easy to burn off, thus ending the lamp life. So the greater the power of incandescent lamp.

fluorescent lamp
fluorescent lamp is also called daylight lamp, its working principle: fluorescent lamp simple said is a sealed gas discharge tube. The main gas pipe for argon (argon) gas (containing neon or krypton other neon krypton) about 0.3% atmospheric pressure. Also contains a few drops of mercury - the formation of trace amounts of mercury vapor. The mercury atom accounts for about 1/1000 of all gas atoms.
fluorescent tube is the mercury atom by the lamp tube, by the gas discharge process to release the ultraviolet light (the main wavelength of 2537 =2537 * 10-10m *). About 60% of the energy consumed can be converted to UV light. The rest of the energy is converted into heat.
fluorescent lamp is absorbed by the fluorescent substance of the inner surface of the tube to release the visible light. Different fluorescent substances emit different visible light. The efficiency of conversion to visible light is about 40%. Therefore, the efficiency of fluorescent lamp is about two times as much as 60% x 40% = 24% is approximately the same as that of the tungsten lamp power.
energy-saving lamps
energy-saving lamps also called compact fluorescent lamps (referred to as CFL lamp) with luminous efficiency high (5 times the ordinary lighting), energy saving effect obviously, long life (eight times the ordinary lighting), small volume, convenient use, etc. advantages. Its working principle is basically the same as the fluorescent lamp.
energy-saving lamps in addition to white (Leng Guang), and now there is * * * (warm light). Generally speaking, under the same tile, an energy saving lamp is 80%, and the average life expectancy is 8 times, and the heat radiation is only 20%. Not strictly in the case of a 5 Watt energy-saving lighting can be equivalent to 25 watt incandescent lamp, 7 watts of energy-saving lighting is about equal to 40 watts, 9 watts of about 60 watts of.

LED lamp LED
(Emitting Diode Light) is also called light emitting diode, it is a solid semiconductor devices, can be directly converted into light. The heart of LED is a semiconductor chip, one end of the chip is attached to a support, one end is a negative electrode, and the other end is connected with the positive electrode of the power supply, so that the whole chip is encapsulated by the epoxy resin. Semiconductor chip is composed of three parts, one part is P type semiconductor, in which the dominant hole, the other end is N type semiconductor, here is mainly electronic, in the middle is usually 1 to 5 cycles of quantum wells. When the current through the wire is applied to the wafer, electrons and holes will be pushed to quantum well, within the quantum well electron hole with compound, and then in the form of photon emit energy, which is LED light-emitting principle. LED
lamp has the advantages of small size, low power consumption, long service life, non-toxic, environmental protection and many other advantages, LED lamps and lanterns from the outdoor decoration, engineering lighting, and gradually developed into the home lighting.


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