The lamp is constructed from a hollow glass tube with an aluminium cap at each end. Once the lamp has warmed up and the mercury is fully vaporised, the discharge operates in unsaturated mercury vapour at a pressure varying from 18 bar for the smallest types, to 2 bar for the largest. A wide variety of 300w high pressure mercury lamp options are available to you, such as 220v, 380v. As pressure increases the chance of multiple collisions gets increased. Figure 614 shows the basic configuration of a hid lamp. Sodium vapor lamps are some of the most efficient lamps in the world. Dec, 2017 friends is video me ham discuss karenge mercury vapour lamp ke bare me. Space constraints, high flow requirements low pressure medium pressure kw per lamp. A mercury vapour lamp is a highpressure, electric arc discharge lamp that provides intense illumination over a selected range of wavelengths.
I found that rohs restriction of hazardous substances directive of eu will prohibit use of high pressure mercury vapour lamp hpmv since 4. A mercury vapour lamp is a high pressure, electric arc discharge lamp that provides intense illumination over a selected range of wavelengths. Designed by experienced engineers, and by using quality material in combination with a tightly controlled manufacturing process, we provide high quality lamps free of impurities to maintain strong and stable output throughout life of the lamp. A lowpressure mercury vapourfilled discharge lamp as claimed in any one of claims 4 to 9, where said first gas is a combination of xenon and mercury. Us20060152160a1 highpressure mercury vapor discharge lamp. The range of lights manufacturers,wholesalers we represented is extensive. Mercury vapor is the original and now the oldest hid technology and has been supplanted by other hid types that offer higher efficiencies and better color properties. Ushio germicidal lamps are low pressure mercury arc lamps that emit radiation peaking at 253. After the experiment, leave the highpressure mercury vapour lamp to cool. Mercury vapor lamps are highintensity discharge lamps that predate modern highpressure sodium and metal halide lamps. Lowpressure amalgam lamps amalgam lamps use a mercury amalgam mix to control mercury vapor pressure. Do not touch the body of the lamp after switching on. Such lamps generate an atmosphere of mercury vapour at high pressure. It uses an arc through vaporized mercury in a high pressure tube to create very bright light directly from its own arc.
All high intensitydischarge lamps produce light from an arc tube that is usually contained in an outer glass bulb. Even with low intensity uv sources, cures can be obtained quickly. This standard specifies the performance requirements for high pressure mercury vapour lamps for general lighting purposes, with or without a red correcting fluorescent coating. Apr 28, 1992 a high pressure mercury vapor discharge lamp whose envelope two tungsten electrodes disposed therein of tungsten and a filling containing a rare gas, a quantity of mercury larger than 0. Germicidal lamp types lamp nomenclature lamp diameter 2. Mercuryvapor lamps are subdivided into lowpressure, highpressure, and superhighpressure lamps according to the operating pressure. Consisting of a hardened glass bulb made from blackened borosilicate glass, and with a tubeshaped hole, the lamp allows for the emission of unfiltered ultraviolet radiation. A highpressure mercury vapor discharge lamp has an envelope which contains two electrodes made from tungsten and a filling in a discharge space. High pressure mercury vapour lamps for general lighting purposes. Mercury vapor lamps are high intensity discharge lamps that predate modern high pressure sodium and metal halide lamps. Lumalux super and sox lamp ratings are based on measurements at constant input voltage. Mercury lamps are used primarily for general street, parking and hibay industrial lighting applications where good efficiency and long life is desired and color rendering needs. Ballasts of the correct size and type are required to operate mercury lamps on any standard electrical.
Turn off the highpressure mercury lamp and wait several minutes for it to cool down. The reason for the creation of this second category of mercury lamp was to allow the efficacy to be maintained as high as possible for low wattage sources. Mercury vapor lamps are subdivided into low pressure, high pressure, and superhigh pressure lamps according to the operating pressure. Highpressure mercury vapour lamps performance specifications. High pressure sodium bulbs to mercury vapor conversion light. The arc discharge is generally confined to a small fused quartz arc tube mounted within a larger borosilicate glass bulb. All highintensitydischarge lamps produce light from an arc tube that is usually contained in an outer glass bulb. High pressure sodium bulbs to mercury vapor conversion light bulbs genesis lamp offers a wide selection of hid high intensity discharge light bulbs, including. Do not operate the high pressure mercury vapour lamp continuously for longer than 10 minutes. A common discharge lighting luminary for use in an office environment would typically be a low pressure mercury vapour electronic discharge fluorescent lamp. A highpressure sodiumvapor lamp a sodiumvapor lamp is a gasdischarge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. En 60598 luminaires en 60188 high pressure mercury lamps en 61167 metal halide lamps en 60662 high pressure sodium vapour lamps en 60192 low pressure sodium vapour lamps. During operation the body of the lamp will get hot so that there is a risk of getting burned. Mar 10, 2020 high pressure sodium lamps or hps lamps march 10, 2020 february 24, 2012 by electrical4u high pressure sodium lamps also known as hps lamps or hps lights are a type of sodium lamp that is widely used in industrial lighting and many public outdoor areas.
Lowpressure lamps operate with mercury vapor pressure ranging from about 100 to pa. A common discharge lighting luminary for use in an office environment would typically be a lowpressure mercuryvapour electronic discharge fluorescent lamp. Within the tube are two electrode coils, one at either end. The tube consists of a mixture of argon gas and mercury vapor at lowpressure and the wall of the ballast is meant to control the current and voltage flow due to the emission. Aug 26, 2014 light sources incandescent lamp discharge lamp florescent lamp sodium lamp high pressure mercury vapour lamp 3. Turn on the mercury lamp and observe the double yellow line as the lamp heats up. Warmup of a color corrected 80 w high pressure mercury vapor lamp to half brightness when a mercury vapor lamp is first turned on, it will produce a dark blue glow because only a small amount of the mercury is ionized and the gas pressure in the arc tube is very low, so much of the light is produced in the ultraviolet mercury bands. Again transition of the electrons requires least amount of input energy from a colliding electron.
No solvents or other volatiles are released during the curing process. Dec 31, 2018 in case of fluorescent lamp the mercury vapour pressure is maintained at lower level such that 60% of the total input energy gets converted into 253. These lamps have an operating lifetime of up to 12,000 hours and convert up to 40% of the lamps electrical power into uvc, offering an efficient and cost. This is also standard practice in mercury lamps designed for use in colder atmospheres.
Be sure to consider all the options you might be able to find such as outdoor light, mercury lamp. The first high pressure mercury lamp, similar to the ones used today, was introduced in 1934 in the 400watt size. The highpressure mercury vapour lamp is for use within the field of atomic physics, for instance when demonstrating the external photoelectric effect. A discharge tube containing an inert gas and a small quantity of liquid mercury. The invention relates to a high pressure mercury vapor discharge lamp 1 with an envelope 2 made from high temperatureresistant material, which contains two electrodes 12, made from tungsten and a filling in a discharge space 14, which filling essentially consists of mercury, rare gas, and a halogen that is free in the operating condition. Low pressure uv lamps alphacure uv lamp manufacturer.
In these lamps, a material, such as sodium, mercury, or metal halide, is added to the arc tube. This standard specifies the performance requirements for highpressure mercury vapour lamps for general lighting purposes, with or without a red correcting fluorescent coating. The filling essentially consists of mercury, rare gas, and a halogen that is free in the operating condition. High pressure sodium lamps or hps lamps electrical4u. High pressure mercury lamps kolorlux standard 50w, 80w, 125w, 250w and 400w kolorlux deluxe 50w, 80w, 125w, 250w and 400w data sheet product information kolorlux mercury vapor lamps are often used due to their relative efficiency. Lamp that produces light as a result of an electrical discharge, generated between two electrodes, in a highpressure mercury vapor that is contained in a transparent bulb. Us7291980b2 highpressure mercury vapor discharge lamp with.
A lowpressure mercuryvapor lamp has a characteristic emission line at 253 nm. The fact that the high pressure mercury vapour lamp could be introduced successfully as a practical light source, is due to the favourable spectral light distribution, the high luminous efficiency, the relatively small lamp dimensions and the possibility of an extensive range. With increasing temperature, and therefore pressure, of the mercury vapour in the lamp, the two lines become bigger and broader. The mercury vapor lamp is a high intensity discharge lamp. However, the first lowpressure lamps were sold commercially in the united states in 1901 after john cooper hewitt innovated the lamps color. After the experiment, leave the high pressure mercury vapour lamp to cool. Lamps now available range in size from 40 watts to watts. Lumen rating sylvania high pressure sodium lamps, with the exception of lumalux super and sox lamps, are based on burning cycles of at least 10 hours per start and ballasts which meet ansi standards.
However, the first low pressure lamps were sold commercially in the united states in 1901 after john cooper hewitt innovated the lamp s color. Mercury vapor technology was developed throughout the 1800s in england and germany. Warmup of a color corrected 80 w highpressure mercury vapor lamp to half brightness when a mercury vapor lamp is first turned on, it will produce a dark blue glow because only a small amount of the mercury is ionized and the gas pressure in the arc tube is very low, so much of the light is produced in the ultraviolet mercury bands. Hpmv lamp is similar in construction to the sodium vapour lamp and may have low pressure in the bulb. A high pressure 1 to 2 atm mercury vapour lamp has amount of mercury introduced in the lamp. Engineering high intensity discharge bulletin mercury lamps. Rohs will ban high pressure mercury vapour lamp hpmv. High pressure sodium lamps or hps lamps march 10, 2020 february 24, 2012 by electrical4u highpressure sodium lamps also known as hps lamps or hps lights are a type of sodium lamp that is widely used in industrial lighting and many public outdoor areas. Mercury vapor ballast output voltage samstercyrant. A lowpressure mercury vapourfilled discharge lamp as claimed in any one of claims 4 to 8, wherein said cathodes are coated with a material including one of baal2o4 and lia1o2 10.
Temperature optimum hg vapor pressure the cold spot hg. If you are mainly looking for 2020 newest high pressure mercury lamp and high pressure mercury lamp factory, here you will find all the options you can ever have imagined. The luminous efficacy of any discharge lamp falls as wattage is reduced. This is different from fluorescents which use the mercury vapor arc to create a weaker light that mainly creates uv light to excite the phosphors. A high pressure mercury vapor discharge lamp has an envelope which contains two electrodes made from tungsten and a filling in a discharge space. Low pressure mercury lamp in addition to the medium pressure mercury and led light sources, vapourtec also offer three low pressure mercury lamps. Phosphor coated bulbs offer a better color rendering index than either high or low pressure sodium lamps. Rather than a cold spot, the lamps amalgam spot on pellet regulates mercury vapor pressure during operation and yields up to three times the uvc output of a standard low pressure mercury lamp of the same length.
Find out information about highpressure mercuryvapor lamp. Set up the ocular such that the yellow lines are well in focus. The outer bulb may be clear or coated with a phosphor. The construction and applications of sodium vapour lamps.
So if the lamp is connected directly to a constantvoltage source like the mercury vapor lamp ballasts are similar to the ballasts used with fluorescent lamps. In some versions, fluorescent powder is applied that converts the ultraviolet part, which is emitted together with visible light, into visible light to improve the color. They have an efficiency of up to 190 lumens per watt compared to an incandescent street lamp which has between 15 and 19. Light sources incandescent lamp discharge lamp florescent lamp sodium lamp high pressure mercury vapour lamp 3. A highpressure mercury vapor discharge lamp whose envelope two tungsten electrodes disposed therein of tungsten and a filling containing a rare gas, a quantity of mercury larger than 0. Lowpressure mercury vapourfilled discharge lamp, luminaire. In case of fluorescent lamp the mercury vapour pressure is maintained at lower level such that 60% of the total input energy gets converted into 253.
These offer specific wavelength emission and provide wavelengths not available with the medium pressure mercury or led light sources. Low pressure lamps operate with mercury vapor pressure ranging from about 100 to pa. Mercury vapour pressure is typically around ten atmospheres. Oct 14, 2014 lamp that produces light as a result of an electrical discharge, generated between two electrodes, in a high pressure mercury vapor that is contained in a transparent bulb.
Information from its description page there is shown below. Space constraints, highflow requirements low pressure medium pressure kw per lamp. Product information high pressure and specification. For some of the requirements given in this standard, reference is made to the relevant lamp data sheet. The invention relates to a highpressure mercury vapor discharge lamp 1 with an envelope 2 made from hightemperatureresistant material, which contains two electrodes 12, made from tungsten and a filling in a discharge space 14, which filling essentially consists of mercury, rare gas, and a halogen that is free in the operating condition. Investigating the spectrum of a high pressure mercury lamp. A high pressure sodiumvapor lamp a sodiumvapor lamp is a gasdischarge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. The term pressure is referred to the mercury pressure present in the lamps. High pressure mercury lamps 400w buy mercury vapour lamps. A mercury vapor lamp is a gas discharge lamp that uses an electric arc through vaporized mercury to produce light. Dec 21, 2015 hpmv lamp is similar in construction to the sodium vapour lamp and may have low pressure in the bulb.
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