Light source: The source should provide stable radiation with sufficient intensity over an entire range. This emitted ultraviolet light is converted into visible light as it strikes the fluorescent coating as well as into heat when absorbed by other materials. Fluorescent lamps come in all shapes and sizes, but they all work on the same basic principle: An electric current stimulates mercury atoms, which causes them to release ultraviolet photons. A fluorescent lamp or a fluorescent tube is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. A typical Fluorescent lamp consists of a glass tube coated with phosphor and containing a pair of electrodes at each end. Here light is produced by passing electricity through ionized Xenon gas under high pressure. Fluorescent lamps or tubelight work by ionizing mercury vapor in a glass tube.


ADVERTISEMENTS: Such substances are called ‘fluorescent substances’. A fluorescent lamp has changed over electrical energy into useful light energy to a great deal more proficiently than incandescent lamps.The normal luminous viability of fluorescent lighting frameworks is 50 to100 lumens per watt, which is a few times the adequacy of incandescent lamps with equivalent light yield.. How does a Fluorescent Lamp work? 1. INTRODUCTION Fluorescent lamps have applications in most areas of lighting, where they give longer lifetime and lower power consumption for equivalent light output compared to filament bulbs, with the disadvantage of higher initial cost. Before going through the working principle of a fluorescent lamp, we will first show the circuit of a fluorescent lamp in other words circuit of tube light. It is filled with an inert gas typically argon which acts as conductor and also consists of mercury liquid. However some of them, after absorbing light of a particular wavelength and energy, emit light of a longer wavelength and lesser energy. When tube is made on, starter and choke carry current, heating up the coils at ends of tube, which release some free electrons in area around.

What is Fluorescent Lamp | The Fluorescent tube consists of a glass tube 25mm in diameter and 0.6mt, 1.2mt and 1.5 mt in length.The tube contains argon gas at a low pressure of 2.5 mt and one or two drops of mercury and inside surface of the tube is coated with a thin layer of Fluorescent material in the form of a powder.


Working principle of mercury vapor lamp Author: Technical Editor Category: Electrical Articles 8 May 18 The extensive use of the mercury vapor lamp depends entirely upon the versatility of the mercury vapor as regards pressure, temperature , voltage and other characteristics, each change resulting in a lamp of different spectral quality and efficiency. Fluorescent lamps are lamps in which light is produced as a result of flow of free electrons and ions inside a gas. Before going through the working principle of a fluorescent lamp, we will first show the circuit of a fluorescent lamp in other words circuit of tube light. Compact Fluorescent Lamp Working Principle The electrons that are bound to mercury atoms are excited to states where they will radiate ultraviolet light as they return to a lower energy level.

Here we connect one ballast, and one switch and the supply is series as shown. Ensuite, nous connectons le tube fluorescent et un démarreur. Light without heat: Traditionally, light is generated by heating something, whether it is a lighted candle or an incandescent lamp, something has to be heated to the point where it emits light. 2. In T5 lamps this is at the end of the tube with the text stamped on it. So the starter shall be as simple as possible, light and reliable, and some can even in discharge lamp lighting from the circuit removed without affecting the discharge lamp of the normal work of various types of gas discharge lamp starter. Therefore, there is no major difference between the working principle of a fluorescent lamp and a CFL.

Working principle of fluorescent lamp Author: Technical Editor Category: Electrical Articles 8 May 18 Fluorescent lighting has a great advantage over other light sources in any application. Then we connect the fluorescent tube and a starter across it. An electric current in the gas excites mercury vapor which produces short-wave ultraviolet light that then causes a phosphor coating on the inside of the bulb to glow. DC Operation: Operating Principle : The fluorescent tube produces visible light by the process of 'fluorescence'. Fluorescent lamp efficacy is dependent on lamp temperature at the coldest part of the lamp. How does a Fluorescent Lamp work? This causes electrons in the gas to emit photons at UV frequencies.

This term was first coined by the British scientist Sir George Stokes in 1852, following his observations on the mineral 'fluorite' which glows when irradiated with ultra-violet light. Here we connect one ballast, and one switch and the supply is series as shown.