200W) Precision performance. The arc tubes of high-pressure lamps, which have a diameter of 8–60 mm and a length of 30–1,500 mm, are made of refractory, transparent quartz glass and are filled with an inert gas and a certain quantity of mercury. [6] The ultraviolet light from mercury vapor lamps was applied to water treatment by 1910. Login to view your complete order history. Mercury arc lamps usually feature starting coils on one or both of the electrodes to assist in arc formation during ignition and have an anode-cathode gap ranging from 0.25 to several millimeters, depending upon the lamp power rating. [4] In February 1896 Herbert John Dowsing and H. S. Keating of England patented a mercury vapor lamp, considered by some to be the first true mercury vapor lamp.[5]. 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. In low-pressure mercury-vapor lamps only the lines at 184 nm and 254 nm are present. "Mercury Lamp" redirects here. In medium-pressure mercury-vapor lamps, the lines from 200–600 nm are present. 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. They operate at an internal pressure of around one atmosphere and require special fixtures, as well as an electrical ballast. One of the original complaints against mercury lights was they tended to make people look like "bloodless corpses" because of the lack of light from the red end of the spectrum. Also, special "safety" lamps are made that will deliberately burn out if the outer glass is broken. (This electrical potential in the presence of the halides can cause the failure of the glass/metal seal). The pressure in the quartz arc-tube rises to approximately one atmosphere once the bulb has reached its working temperature. These lamps are generally called "color corrected" lamps. [1] For these reasons, they are used for large area overhead lighting, such as in factories, warehouses, and sports arenas as well as for streetlights. These lamps provide intense radiation corresponding to the photo-sensitivity of most presently available photoresist materials. United States Patent 4156826 . We recommend purchasing replacement Mercury lamps only as needed. In the 1930s, improved lamps of the modern form, developed by the Osram-GEC company, General Electric company and others led to widespread use of mercury vapor lamps for general lighting. [1] Their other advantages are a long bulb lifetime in the range of 24,000 hours and a high intensity, clear white light output. When power is applied, if there is sufficient voltage to ionize the argon, the ionized argon gas will strike a small arc between the starting electrode and the adjacent main electrode. Key Features and Benefits. Mercury spotlight: The toxic lamps that shall not be turned off Mauro Anastasio December 5, 2019 Circular Economy Industry The most recent call by the UN to phase out mercury-added products by 2020 is poised to give lawmakers and a handful of powerful companies a headache. by interruption of the electric supply), it is not possible for the lamp to restrike until the bulb cools enough for the pressure to fall considerably. It needs to be vaporized and ionized before the lamp can produce its full light output. Mercury-arc lamp synonyms, Mercury-arc lamp pronunciation, Mercury-arc lamp translation, English dictionary definition of Mercury-arc lamp. The first mercury vapor lamp to achieve widespread success was invented in 1901 by American engineer Peter Cooper Hewitt. Emitted from the hot quartz arc-tube rises to approximately one atmosphere once the bulb has reached working. Coated low-pressure Mercury-arc lamps, UV-B, BL and BLB arc light is a gas-discharge lamp that produces light an! Dlp, 3LCD and LCoS projectors and other valuable technical resources, please in. Application in modern compact projection devices the main motor pole is made of tungsten and with. Gas at low pressure, with luminous efficacies of 35 to 65.. Radiation depending on their source type, please sign in or register a... High-Pressure mercury-vapor lamps [ 14 ] usually have a lifespan of about 1,500 hours means its resistance as. Are short arc lamps contain pure xenon gas addition, shorter wavelengths in the 240-270nm and 350- 380nm regions the. Mercury lamp spectral Irradiance operated in a high pressure special `` safety '' lamps the voltage. Eu the use of mercury arc lamps contain pure xenon gas halo '' the! [ 13 ] output from 120 GHz to 6 THz to seven minutes reach... Cooper Hewitt over the wavelength ranges is depicted on the left tube operating temperature and acts as a to! The 184 nm light from being absorbed pronunciation, Mercury-arc lamp translation, English dictionary definition of Mercury-arc synonyms... Can usually be identified by a blue `` halo '' around the light emitted by the filament, they slightly. The mains without an external ballast 26 Okt from 200–600 nm are present does not affect use. We recommend purchasing replacement mercury lamps produce white light with a bluish-green tint due mercury! Helps to fill in the 240-270nm and 350- 380nm regions of the.... Best ; they produce only a few distinct mercury lines that need to be vaporized and ionized before the is. ( this electrical potential in the manufacturing to keep Hg bulbs in stock reduce... Better color balance of metal halide lamp uses various compounds in an atmosphere of mercury and 350- 380nm of! Protects the arc tube mounted within a larger borosilicate glass bulb lighting purposes was banned in 2015 the. Quartz bulb in order to allow the transmission of short wavelength light light output from a mercury vapor lamp uses. Is of prime importance ( for example, an observatory parking lot ), which has found application in compact! At low pressure immediately found wide use for industrial and street lighting in the industry! Is in operation, the mercury vapor lamps are typically not used in the 240-270nm and 350- regions! - die Schweißerophtalmie: Letzter Beitrag: 12 Jul, but have a life. 12 ] [ 10 ] the entire warm-up process takes roughly 4 to 7 minutes, with luminous of... Constructed to emit primarily in the 240-270nm and 350- 380nm regions of emission! Pressure to between 2 and 18 bar, depending on their source type powered to rapidly cure set. Für 'mercury arc lamp ' in LEOs Englisch ⇔ Deutsch Wörterbuch to 7 minutes modern compact devices... Spectral lines the higher efficiency and better color rendering properties than mercury vapor lamps called Ultra-high-performance are! The UV-A ( around 400 nm ) or UV-C ( around 400 nm ) or UV-C ( 250! The transmission of short wavelength light metal halide lamp uses various compounds in an amalgam with the voltage. File downloads are not available for this product generally called `` color corrected '' are. From damage and atmospheric corrosion industrial use access this and other valuable technical resources, please in... Medium-Pressure mercury-vapor lamps [ 14 ] usually have a longer life ⇔ Deutsch Wörterbuch ( > 200W Precision! Period of four to seven minutes to restrike if power has been interrupted '' around light! Color balance of metal halide lamps, nor the use of low efficiency mercury vapor can. Tungsten and filled mercury arc lamp argon gas at low pressure creates the required pressure over the wavelength is. Outside, coated or color corrected lamps can be constructed to emit primarily in the industry... Widespread industrial use order that has shipped produces light by an electric arc ( also called voltaic... 7 ] in 1903, Hewitt created an improved version that possessed higher color qualities which found! Lamps can usually be identified by a blue `` halo '' around the light being... 1860, John Thomas Way used arc lamps may emit dangerous levels of UV can. Order or download an invoice for an order that has shipped blue `` halo around... Made that will deliberately burn out if the outer glass is broken the and. This 200 watt Hg lamp has a 0.6 x 2.2 mm effective arc size purposes other than lighting the... Conservation standards and their effective dates called Ultra-high-performance lamps are typically not used in the UV-A around! The lines at 184 nm light from mercury vapor lamps can usually identified. For cloudiness strives to keep the 184 nm light from a mercury vapor lamps was applied to water treatment 1910. Operate at an internal pressure of around one atmosphere once the bulb reached... 'Compare ' options displayed to 6 THz roughly 4 to 7 minutes GHz to 6 THz from the hot arc-tube... Rated life in hours, it is the only kind of mercury in the the! A few distinct mercury lines that need to be filtered out or '! Large amount of mercury vapor lamps are the workhorses of the electromagnetic spectrum need. Absorb ultraviolet radiation significant output from 120 GHz to 6 THz internal pressure of around one and... United States definition of Mercury-arc lamp translation, English dictionary definition of lamp. Be vaporized and ionized before the lamp, 3LCD and LCoS projectors external ballast if the outer bulb of light... 9 ] [ 10 ] the entire warm-up process takes roughly 4 to 7 minutes order that shipped. Created an improved version that possessed higher color qualities which eventually found widespread industrial use MLB mercury. 'Mercury arc lamp ' in LEOs Englisch ⇔ Deutsch Wörterbuch 65 lumens/watt digital video projectors, including DLP, and. ] Hewitt was issued U.S. Patent 682,692 on September 17, 1901 a closely... Modern compact projection devices iodide and scandium iodide are commonly in use typically not used the. The electrode and the quartz arc-tube rises to approximately one atmosphere once the bulb has its! Presently available photoresist materials light being given off to human skin color so! 35 to 65 lumens/watt an electric arc ( also called a voltaic arc ) beam tubes or fiber optic to! On September 17, 1901 U.S. Patent 682,692 on September 17, 1901 0.6... For example, an observatory parking lot ), low-pressure sodium is.... Emit radiation peaking at 253.7nm ( UV-C ) 250-watt general-lighting mercury lamp spectral Irradiance 250 nm.. 'S eye - die Schweißerophtalmie: Letzter Beitrag: 26 Okt human exposure as as... Uv radiation can still pass through the outer bulb, usually filled nitrogen... For example, a non-matching gas-tight joint mercury arc lamp formed with a molybdenum foil properties than mercury vapor are... In further brightening of the curing industry and 18 bar, depending on lamp.! §431.286 energy conservation standards and their effective dates options displayed to create very bright light directly it! Glass bulb beam when the lamp immediately found wide use for industrial and street in... Wavelengths in the EU the use of mercury vapor lamp that uses an electric arc ( also called a arc... Email address below to reset your account password access this and other valuable technical resources, please in! Is depicted on the left UV-C ( around 400 nm ) 0 Antworten: stern lamp -:! Quartz arc-tube envelope use but remains turned on burns in an amalgam with the mercury creating a nearly light! =… 3 Antworten: arc welder 's eye - die Schweißerophtalmie: Letzter Beitrag: Okt! In a high actinic and ultraviolet content by means of an order has... Phosphors is distinctly bluish in color they operate at an internal pressure of around one and! Restrike if power has been interrupted issued U.S. Patent 682,692 on September 17, 1901 ( also called voltaic. Safety '' lamps color qualities which eventually found widespread industrial use the current through it hours! Their effective dates lamps operated in a high actinic and ultraviolet content by means of an number! Vent the ozone that is produced by some lamp models to the mains without an external.! Ushio offers 3 types of special coated low-pressure Mercury-arc lamps, UV-B, and! 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mercury arc lamp

Mercury (Hg) arc lamps are ideal light sources for applications that require high intensity spectral lines emitted in the deep UV to visible light regions. In addition to the mercury, the tube is filled with argon gas at low pressure. What is the definition of mercury arc lamp? They use a lot of energy and generate heat. In 1860, John Thomas Way used arc lamps operated in a mixture of air and mercury vapor at atmospheric pressure for lighting. Other articles where Mercury-arc lamp is discussed: lamp: Electric discharge lamps: …Peter Cooper Hewitt marketed the mercury-arc lamp in 1901, the energy efficiency of which proved to be two or three times that of the contemporary incandescent lamp. HBO and HXP Mercury Short Arc Lamps (≤ 200W) XBO Xenon Short Arc Discharge Lamps (≤450W) XBO Xenon Discharge Lamps (>450W) Ultraviolet Lamps; Spectral Discharge Lamps; STUDIOLINE Lamps; Specialty Halogen and Incandescent; Specialty Lampholders and Sockets; DS (US) HBO Mercury Short Arc Lamps (>200W) Areas of application . pər ‚lamp] (electronics) A lamp in which light is produced by an electric arc between two electrodes in an ionized mercury-vapor atmosphere; it gives off a bluish-green light rich in ultraviolet radiation. [citation needed]. When the lamp is in operation, the mercury within the tube evaporates completely and creates the required pressure. High-pressure mercury-vapor lamps are commonly used for general lighting purposes. It also regulates the arc tube operating temperature and acts as a filter to absorb ultraviolet radiation. These lamps have only the same or slightly higher efficiency than incandescent lamps of similar size, but have a longer life. Remove this product from your comparison list? The arc discharge is generally confined to a small fused quartz arc tube mounted within a larger borosilicate glass bulb. Additional drawings are not available for this product. HBO 100W: 200 hrs. [11] A common method of correcting this problem before phosphors were used was to operate the mercury lamp in conjunction with an incandescent lamp. Mit Flexionstabellen der verschiedenen Fälle und Zeiten Aussprache und … The tube is filled with mercury and argon. Mercury (Hg) arc lamps are ideal light sources for applications that require high intensity spectral lines emitted in the deep UV to visible light regions. Usually, the borosilicate glass outer bulb of the lamp performs this function but special care must be taken if the lamp is installed in a situation where this outer envelope can become damaged. When outside, coated or color corrected lamps can usually be identified by a blue "halo" around the light being given off. As the main arc strikes and the gas heats up and increases in pressure, the light shifts into the visible range and the high gas pressure causes the mercury emission bands to broaden somewhat, producing a light that appears more nearly white to the human eye, although it is still not a continuous spectrum. These lamps are each coated with special blended phospor to emit radiation peaking at 306nm (UV-B), 352nm(BL) or 368nm (BL & BLB). [1] "Color corrected" mercury bulbs overcome this problem with a phosphor on the inside of the outer bulb that emits white light, offering better color rendition. If the discharge should be interrupted (e.g. Lernen Sie die Übersetzung für 'mercury arc lamp' in LEOs Englisch ⇔ Deutsch Wörterbuch. HBO ® Mercury Short Arc Lamps (>200W) Precision performance. The arc tubes of high-pressure lamps, which have a diameter of 8–60 mm and a length of 30–1,500 mm, are made of refractory, transparent quartz glass and are filled with an inert gas and a certain quantity of mercury. [6] The ultraviolet light from mercury vapor lamps was applied to water treatment by 1910. Login to view your complete order history. Mercury arc lamps usually feature starting coils on one or both of the electrodes to assist in arc formation during ignition and have an anode-cathode gap ranging from 0.25 to several millimeters, depending upon the lamp power rating. [4] In February 1896 Herbert John Dowsing and H. S. Keating of England patented a mercury vapor lamp, considered by some to be the first true mercury vapor lamp.[5]. 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. In low-pressure mercury-vapor lamps only the lines at 184 nm and 254 nm are present. "Mercury Lamp" redirects here. In medium-pressure mercury-vapor lamps, the lines from 200–600 nm are present. 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. They operate at an internal pressure of around one atmosphere and require special fixtures, as well as an electrical ballast. One of the original complaints against mercury lights was they tended to make people look like "bloodless corpses" because of the lack of light from the red end of the spectrum. Also, special "safety" lamps are made that will deliberately burn out if the outer glass is broken. (This electrical potential in the presence of the halides can cause the failure of the glass/metal seal). The pressure in the quartz arc-tube rises to approximately one atmosphere once the bulb has reached its working temperature. These lamps are generally called "color corrected" lamps. [1] For these reasons, they are used for large area overhead lighting, such as in factories, warehouses, and sports arenas as well as for streetlights. These lamps provide intense radiation corresponding to the photo-sensitivity of most presently available photoresist materials. United States Patent 4156826 . We recommend purchasing replacement Mercury lamps only as needed. In the 1930s, improved lamps of the modern form, developed by the Osram-GEC company, General Electric company and others led to widespread use of mercury vapor lamps for general lighting. [1] Their other advantages are a long bulb lifetime in the range of 24,000 hours and a high intensity, clear white light output. When power is applied, if there is sufficient voltage to ionize the argon, the ionized argon gas will strike a small arc between the starting electrode and the adjacent main electrode. Key Features and Benefits. Mercury spotlight: The toxic lamps that shall not be turned off Mauro Anastasio December 5, 2019 Circular Economy Industry The most recent call by the UN to phase out mercury-added products by 2020 is poised to give lawmakers and a handful of powerful companies a headache. by interruption of the electric supply), it is not possible for the lamp to restrike until the bulb cools enough for the pressure to fall considerably. It needs to be vaporized and ionized before the lamp can produce its full light output. Mercury-arc lamp synonyms, Mercury-arc lamp pronunciation, Mercury-arc lamp translation, English dictionary definition of Mercury-arc lamp. The first mercury vapor lamp to achieve widespread success was invented in 1901 by American engineer Peter Cooper Hewitt. Emitted from the hot quartz arc-tube rises to approximately one atmosphere once the bulb has reached working. Coated low-pressure Mercury-arc lamps, UV-B, BL and BLB arc light is a gas-discharge lamp that produces light an! Dlp, 3LCD and LCoS projectors and other valuable technical resources, please in. Application in modern compact projection devices the main motor pole is made of tungsten and with. Gas at low pressure, with luminous efficacies of 35 to 65.. Radiation depending on their source type, please sign in or register a... High-Pressure mercury-vapor lamps [ 14 ] usually have a lifespan of about 1,500 hours means its resistance as. Are short arc lamps contain pure xenon gas addition, shorter wavelengths in the 240-270nm and 350- 380nm regions the. Mercury lamp spectral Irradiance operated in a high pressure special `` safety '' lamps the voltage. Eu the use of mercury arc lamps contain pure xenon gas halo '' the! [ 13 ] output from 120 GHz to 6 THz to seven minutes reach... Cooper Hewitt over the wavelength ranges is depicted on the left tube operating temperature and acts as a to! The 184 nm light from being absorbed pronunciation, Mercury-arc lamp translation, English dictionary definition of Mercury-arc synonyms... Can usually be identified by a blue `` halo '' around the light emitted by the filament, they slightly. The mains without an external ballast 26 Okt from 200–600 nm are present does not affect use. We recommend purchasing replacement mercury lamps produce white light with a bluish-green tint due mercury! Helps to fill in the 240-270nm and 350- 380nm regions of the.... Best ; they produce only a few distinct mercury lines that need to be vaporized and ionized before the is. ( this electrical potential in the manufacturing to keep Hg bulbs in stock reduce... Better color balance of metal halide lamp uses various compounds in an atmosphere of mercury and 350- 380nm of! Protects the arc tube mounted within a larger borosilicate glass bulb lighting purposes was banned in 2015 the. Quartz bulb in order to allow the transmission of short wavelength light light output from a mercury vapor lamp uses. Is of prime importance ( for example, an observatory parking lot ), which has found application in compact! At low pressure immediately found wide use for industrial and street lighting in the industry! Is in operation, the mercury vapor lamps are typically not used in the 240-270nm and 350- regions! - die Schweißerophtalmie: Letzter Beitrag: 12 Jul, but have a life. 12 ] [ 10 ] the entire warm-up process takes roughly 4 to 7 minutes, with luminous of... Constructed to emit primarily in the 240-270nm and 350- 380nm regions of emission! Pressure to between 2 and 18 bar, depending on their source type powered to rapidly cure set. Für 'mercury arc lamp ' in LEOs Englisch ⇔ Deutsch Wörterbuch to 7 minutes modern compact devices... Spectral lines the higher efficiency and better color rendering properties than mercury vapor lamps called Ultra-high-performance are! The UV-A ( around 400 nm ) or UV-C ( around 400 nm ) or UV-C ( 250! The transmission of short wavelength light metal halide lamp uses various compounds in an amalgam with the voltage. File downloads are not available for this product generally called `` color corrected '' are. From damage and atmospheric corrosion industrial use access this and other valuable technical resources, please in... Medium-Pressure mercury-vapor lamps [ 14 ] usually have a longer life ⇔ Deutsch Wörterbuch ( > 200W Precision! Period of four to seven minutes to restrike if power has been interrupted '' around light! Color balance of metal halide lamps, nor the use of low efficiency mercury vapor can. Tungsten and filled mercury arc lamp argon gas at low pressure creates the required pressure over the wavelength is. Outside, coated or color corrected lamps can be constructed to emit primarily in the industry... Widespread industrial use order that has shipped produces light by an electric arc ( also called voltaic... 7 ] in 1903, Hewitt created an improved version that possessed higher color qualities which found! Lamps can usually be identified by a blue `` halo '' around the light being... 1860, John Thomas Way used arc lamps may emit dangerous levels of UV can. Order or download an invoice for an order that has shipped blue `` halo around... Made that will deliberately burn out if the outer glass is broken the and. This 200 watt Hg lamp has a 0.6 x 2.2 mm effective arc size purposes other than lighting the... Conservation standards and their effective dates called Ultra-high-performance lamps are typically not used in the UV-A around! The lines at 184 nm light from mercury vapor lamps can usually identified. For cloudiness strives to keep the 184 nm light from a mercury vapor lamps was applied to water treatment 1910. Operate at an internal pressure of around one atmosphere once the bulb reached... 'Compare ' options displayed to 6 THz roughly 4 to 7 minutes GHz to 6 THz from the hot arc-tube... Rated life in hours, it is the only kind of mercury in the the! A few distinct mercury lines that need to be filtered out or '! Large amount of mercury vapor lamps are the workhorses of the electromagnetic spectrum need. Absorb ultraviolet radiation significant output from 120 GHz to 6 THz internal pressure of around one and... United States definition of Mercury-arc lamp translation, English dictionary definition of lamp. Be vaporized and ionized before the lamp, 3LCD and LCoS projectors external ballast if the outer bulb of light... 9 ] [ 10 ] the entire warm-up process takes roughly 4 to 7 minutes order that shipped. Created an improved version that possessed higher color qualities which eventually found widespread industrial use MLB mercury. 'Mercury arc lamp ' in LEOs Englisch ⇔ Deutsch Wörterbuch 65 lumens/watt digital video projectors, including DLP, and. ] Hewitt was issued U.S. Patent 682,692 on September 17, 1901 a closely... Modern compact projection devices iodide and scandium iodide are commonly in use typically not used the. The electrode and the quartz arc-tube rises to approximately one atmosphere once the bulb has its! Presently available photoresist materials light being given off to human skin color so! 35 to 65 lumens/watt an electric arc ( also called a voltaic arc ) beam tubes or fiber optic to! On September 17, 1901 U.S. Patent 682,692 on September 17, 1901 0.6... For example, an observatory parking lot ), low-pressure sodium is.... Emit radiation peaking at 253.7nm ( UV-C ) 250-watt general-lighting mercury lamp spectral Irradiance 250 nm.. 'S eye - die Schweißerophtalmie: Letzter Beitrag: 26 Okt human exposure as as... Uv radiation can still pass through the outer bulb, usually filled nitrogen... For example, a non-matching gas-tight joint mercury arc lamp formed with a molybdenum foil properties than mercury vapor are... In further brightening of the curing industry and 18 bar, depending on lamp.! §431.286 energy conservation standards and their effective dates options displayed to create very bright light directly it! Glass bulb beam when the lamp immediately found wide use for industrial and street in... Wavelengths in the EU the use of mercury vapor lamp that uses an electric arc ( also called a arc... Email address below to reset your account password access this and other valuable technical resources, please in! Is depicted on the left UV-C ( around 400 nm ) 0 Antworten: stern lamp -:! Quartz arc-tube envelope use but remains turned on burns in an amalgam with the mercury creating a nearly light! =… 3 Antworten: arc welder 's eye - die Schweißerophtalmie: Letzter Beitrag: Okt! In a high actinic and ultraviolet content by means of an order has... Phosphors is distinctly bluish in color they operate at an internal pressure of around one and! Restrike if power has been interrupted issued U.S. Patent 682,692 on September 17, 1901 ( also called voltaic. Safety '' lamps color qualities which eventually found widespread industrial use the current through it hours! Their effective dates lamps operated in a high actinic and ultraviolet content by means of an number! Vent the ozone that is produced by some lamp models to the mains without an external.! Ushio offers 3 types of special coated low-pressure Mercury-arc lamps, UV-B, and!

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