Pdf a novel environmental riskfree microwave discharge. Sep 10, 2019 electrodeless lamp last updated september 10, 2019 a round induction lamp. A novel environmental risk free microwave discharge electrodeless lamp mdel in advanced oxidation processes. Presented data on uv spectra, output power, and reflectors configuration, multi lamp microwave uv lighting system is shown schematically in the fig. The consequence of having no electrodes is a very long economic life of around 60,00075,000 h. The spherical electrodeless lamp is wound by a coil that supplies ismband, highfrequency power to the lamp. No flickering or noise a distractionfree option for indo. The internal electrodeless lamp, induction lamp, or electrodeless induction lamp is a gasdischarge lamp in which an electric or magnetic field transfers the power required to generate light from outside the lamp envelope to the gas inside. Diagram showing labelled components of a rectangular style external inductor type magnetic induction lamp electrodeless lamps, induction lamp, induction light. Further, lumen maintenance is improved over that of conventional fluorescent or hid systems due to the electrodeless design. The major target for electrodeless technology is a high efficiency, lookalike. Us6288490b1 ferritefree electrodeless fluorescent lamp. Alltop new design warm white ip65 outdoor 40w 60w 100w intergrated all in one led solar street light.
The efficiency of induction lamps range from about 56lmw to 80lmw. Sep 05, 2017 the photodegradation experiments were performed in a manufactured device brown organic glass, 33. Kumho electrics electrodeless induction lighting leverages new technology. Electrodeless induction lamp article about electrodeless. Mar 01, 2000 the electrodeless lamp uses magnetic induction, instead of an electrode at each end of the fluorescent tube, to produce illumination. A rf electrodeless ferrite free fluorescent lamp with a reentry cavity was studied at driving frequencies, f 1. A bifilar or other type of multifilar induction coil, preferably centertapped, is used to further reduce the radio frequency interference problem. Induction technology uses an electrodeless fluorescenttype lamp powered by high frequency electromagnetic energy from an electronic generator. The induction lamp creates a discharge in a tube or bulb without having electrodes inside the vessel.
Oh contributed more than so 4 when initial ph was 7, and had a higher degradation rate with bcee. A second winding 26 surrounds the core 16, respective turns of the. A pushpull class e amplifier is used to provide an efficient transfer of power to the induction coil in an electrodeless discharge lamp and to reduce the amount of radio frequency interference emitted by the lamp into the surrounding environment. A rotary electrodeless teng is fabricated using the contact and sliding mode with a segmented structure. Jun 19, 2020 full wattage 40ww electrodeless fluorescent induction lamp price induction lamp bulb. An induction lighting system is made up of three main parts. Pdf a behavioral, spice compatible, model was developed for an. The basic premise of electrodeless induction lighting is the engagement of the principles of electromagnetic induction and light is generated by means of a vaporous release or gaseous discharge 57.
Specializing in fluorescent lighting induction lamps induction lamps electrodeless fluorescent lamps e. The induction lamp can potentially have the longest life of any light source if the ballasts are made with quality in mind. Dec 01, 2020 electromagnetic induction electrodeless lamp activated persulfate was more effective to degrade bcee. The decrease of initial ph of the reaction system was conducive to the removal of bcee. The induction lamp s main advantages are long life, ease of replacement and low maintenance. Ever since the great scientist nikola tesla stunned his audiences with fabulous demonstrations of induction lighting more than a century ago, lighting firms worldwide have tried to master the technology in an efficient and commercially viable format. Pdf an electronic ballast to control an induction lamp semantic. Matsoshita electric works research and development laboratory inc ferritefree electrodeless fluorescent lamp.
Compare and buy energyefficient, electrode free selfballasted induction lamps and more induction lighting for your commercial lighting project or retrofit. Magnetic induction lamps, commonly known as induction lamps, are electrodeless fluorescent lamps using ballasts that emit radio waves guided into an electromagnetic field, which converts mercury vapor in the lamp into a plasma state. Sbd1102 maintenance free energysaving explosionproof lamp reform new technology, the introduction of longlife electrodeless light source. Sbd1102 maintenancefree energysaving explosionproof lamp.
Dec 23, 2019 electrodeless fluorescent induction lamp wholesale, induction lamp suppliers alibaba eliminating the internal electrodes provides two advantages andersons breakthrough prototype used a frequency of typically operations and maintenance costs are significantly lower with induction lighting systems due to their industry averagehour life. The internal electrodeless lamp or induction lamp is a gas discharge lamp in which an electric or magnetic field transfers the power required to generate light from outside the lamp envelope to the gas inside. Induction lamps abide by the principle of electromagnetic induction. Sbd1102 maintenance free energysaving explosionproof lamp reform new technology, the introduction of longlife electrodeless light source by. Electrodeless lowpressure discharge lamp, and lighting unit provided with such a lamp. This is in contrast to a typical gas discharge lamp that uses internal electrodes connected to the power supply by conductors that pass through the lamp. The commercial electrical contractors source for selfballasted induction lamps and light sources.
This section, section one, delineates the rudimentary light generation principles and types of induction lighting. He has worked with a number of chinese induction lamp manufacturers on improvements to the technology as well as. A lossfree resistorbased versatile ballast for discharge lamps. The electrode less discharge lamp uses an induction coil or energycoupling antenna without electrodes, which use the application of lowpressure gas discharge.
An electrodeless fluorescent lamp comprises a glass closedloop envelope filled with inert gas and mercury vapor at pressure of 0. The lamp body is durable and it has intensive light and high reflectivity. Pdf a behavioral spice compatible model of an electrodeless. The absence of electrodes allows much longer lamp life. Electrodeless lamp lighting systems utilizing the sulfur based bulb type developed by fusion lighting, inc. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.
Pdf electric equivalent model for induction electrodeless. An induction coil of few turns and made from litz wire is disposed on the outer surface of the lamp inside of the closedloop envelope. The mechanics are guaranteed to be free from defective. Abstract electrodeless discharge lamps have several advantages compared to lamps containing electrodes, including longer life, improved lumen maintenance, lamp efficacy, flexibility of lamp design, the use of chemical doses that would interact with electrodes, and improved electrical control. Lowfrequency electrodeless lamp technology parameters electrodeless fluorescent induction lamp. As we grew to dominate the induction lighting market, led technology continued to mature. Electrodeless induction lighting international journal of scientific. Electrodeless lighting electrical contractor magazine. Pdf the high frequency hf electrodeless lamps edl with different fillings such as cadmium and mercury.
Us20070262719a1 20060503 20071115 kenneth lau induction lighting system. They are a the relatively long lifetime of the electrodeless lamp, b no complications in lamp shape because it is electrodeless, c no variations in light intensity, d the ignition time to lighting is shorter than for a typical electrode lamp, e the energy can be supplied externally with the reactor absorbing no microwave radiation, f. New age power optimization solutions for industrial and business applications. Today, fluorescent lamps light over 50% of the building floorspace in the north america. Electrodeless lamps when the fluorescent lamp first appeared in lamp catalogs in 1938, the lighting community saw it as a novelty source for producing colored light. The science behind magnetic induction lighting indulux. Degradation kinetics and mechanism of bis2chloroethyl. Industrial and commercial induction lighting advanced. Induction light bulb, 1885 museum of science and industry chicago dsc06455. Us5525871a electrodeless discharge lamp containing push. Unlike other discharge lamps they have no electrodes, which is why they are also called electrodeless lamps 2, 3. Fourteen years and three website iterations later, we are proud to be the goto source for commercial and municipal induction lighting. Induction features electrodeless lamps, and the absence of electrodes filaments is the reason for their exceptional longevity, durability and vibration resistance. This results in the emission of ultraviolet light, which is converted into white light using phosphors, with the.
An electrodeless lamp is a light source in which the power required to generate. Electrodeless fluorescent induction lamp wholesale, induction lamp suppliers alibaba eliminating the internal electrodes provides two advantages andersons breakthrough prototype used a frequency of typically operations and maintenance costs are significantly lower with induction lighting systems due to their industry averagehour life. Find out information about electrodeless induction lamp. Induction lamp with oppositely oriented coil winding layers. It was a natural fit to include commercial led bulbs and lights as part of our lighting solutions. These lamps have mostly been applied where high lamp replacement is difficult and expensive. Index terms sepic, pfc, electrodeless lamp, ressonant filter. Efficacy lvd induction lamps generally are rated at 90 lumens per watt, similar to. Oct 06, 2014 induction lamps, like fluorescent lamps, belong to the family of lowpressure mercury gas discharge lamps. Pdf highfrequency electrodeless lamps for application in atomic. The internal electrodeless lamp or induction light is a gas discharge lamp in which the power required to generate light is transferred from outside the lamp envelope to the gas inside via an electric or magnetic field, in contrast with a typical gas discharge lamp that uses internal electrodes connected to the power supply by conductors that pass through the lamp envelope. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. A core 16 of magnetic material, preferably ferrite, is positioned in the chamber 14 and has a first winding 18 surrounding the core and having first and second leadin wires 20, 22, attached to a high frequency voltage supply or ballast 24. Visible light is generated by phosphor coating in case of fluorescent lamps and by sulphur.
Induction lamps induction lamps electrodeless fluorescent lamps e. The use of electromagnetic induction lamps without electrodes has increased because of their. The inductively coupled electrodeless lamp uses magnetic induction technology instead of an electrode at each end of the uorescent tube to generate light. Expired fee related application number us08382,824. Michael travels to china frequently and regularly visits all of the major induction lighting factories. Electrodeless fluorescent lamp with bifilar coil and faraday shield. The first practical electrodeless lamp appeared a short time later, and the technology continues to gain in popularity today due to its energy and maintenance advantages. Although induction lamps is a promising technology which features good effi ciency and long life it is not new. Induction lamps operate at high frequencies and are flicker free reducing eyestrain and improving.
While experimenting with highfrequency current, inventor nikola tesla developed an electrodeless lamp, but the concept remained largely unexplored for the next century except as a novelty lamp in the 1980s. Full wattage 40ww electrodeless fluorescent induction lamp price induction lamp bulb. Induction lamps electrodeless fluorescent lamps 1990s today. Sbd1102 maintenancefree energysaving explosionproof. The internal electrodeless lamp, induction lamp, or electrodeless induction lamp is a gasdischarge lamp in which an electric or magnetic field transfers the. Developments in semiconductor technology and changes in the standards for electromagnetic interference emi have both been important in the recent exploitation of electrodeless discharges for use in lighting. An electrodeless fluorescent lamp 10 has an envelope 12 that includes a chamber 14. Rf induction lamp with reduced electromagnetic interference. Electrodeless lamp wikimili, the free encyclopedia. A phosphor coating is disposed on the inner surface of the envelope surface and a reflective coating is disposed on the. Magnetic induction lamps are a long lasting, energy efficient light source. There has been an active period of research on electrodeless discharges inside and outside the lighting industry and much of the basic physics and technology is now well understood.
It uses electromagnetic fields to excite a filling. Characteristics of induction or electrodeless fluorescent lamps efl. Applicable for show room,museums,power plant,metallurgy and ect. The absence of electrodes or filamentswires is a significant factor behind the much longer lamp life. Due to the leakage of electric field between the segments during relative rotation, the generated maxwells displacement current in free space is collected by metal collectors. New induction and plasma lighting technologies proven. How induction lighting works and its history of engineers. Incandescent lamps, other lamp types, fluorescent lamps, electrodeless lamps, electrodeless. There are 18 suppliers who sells electrodeless discharge lamp on, mainly located in asia. A novel method for photooxidative degradation of diatrizoate. Electrodeless discharge lamp aps construction system. The basic technology for induction lamps is not particularly new. Electronics free fulltext power source electronic ballast for.
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