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Topic: High-intensity discharge lamp

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High-intensity discharge lamp - Wikipedia, the free encyclopedia High-intensity discharge (HID) lamps include the types of electrical lights: mercury vapor, metal halide, high-pressure sodium, low-pressure sodium and less common, xenon short-arc lamps. The light-producing element of these lamp types is a well-stabilized arc discharge contained within a refractory envelope (arc tube) with wall loading in excess of 3 W/cm² (19.4 W/in.²). HID lamps are typically used when high levels of light over large areas are required, and when energy efficiency and/or long life are desired. en.wikipedia.org /wiki/High-intensity_discharge_lamp   (650 words)

Leakage inductance - Wikipedia, the free encyclopedia Usually, leakage inductance is an undesirable property, but it is sometimes deliberately introduced into a transformer used as a ballast for a gas discharge lamp such as a neon sign, fluorescent lamp, or a high-intensity discharge lamp. Without the leakage inductance, the negative resistance characteristic of these gas discharge lamps would cause them to conduct excessive current and be destroyed. The leakage flux alternately stores and discharges magnetic energy with each electrical cycle and thus effectively acts as an inductor in series in each of the primary and secondary circuits. en.wikipedia.org /wiki/Leakage_inductance   (259 words)

Gas Discharge Lamps, Ballasts, and Fixtures Nasty chemicals: Various toxic substances may be present inside high pressure discharge lamps (sodium and mercury) and neon signs (some phosphors). Fluorescent lamps are a special class of gas discharge lamps where the electric current produces mostly invisible UV light which is turned into visible light by a special phosphor coating on the interior of the tube. High pressure sodium lamps are roughly twice as efficient as fluorescent lamps. members.misty.com /don/dschlamp.html   (7875 words)

Lightbulb Search Page HIGH INTENSITY DISCHARGE LAMP that produces a bluish light with a lamp life of 16,000 to 24,000 hours. HIGH INTENSITY DISCHARGE LAMP that produces warm golden light with a lamp life of 24,000 hours. Ballasts designed specifically for high pressure sodium lamps must be used. www.marathonlighting.com /eStore/search.asp?pClass=HID   (129 words)

high-intensity discharge lamp High-intensity discharge (HID) lamps provide the highest efficacy and longest service life of any lighting type. Because of the intense light they produce at a high efficacy, HID lamps are commonly used for outdoor lighting and in large indoor arenas. Since the lamps take awhile to establish, they are most suitable for applications where they stay on for hours at a time. daviddarling.info /encyclopedia/H/AE_high-intensity_discharge_lamp.html   (266 words)

Expert: Glow Discharge Plasmas, Lasers Expert He has developed highly innovative laser diagnostics of glow discharge, and he has contributed to the development of kinetic theory models of discharges. These glow discharges are used as sources of coherent (laser) and incoherent light, for the plasma processing of materials and for other applications. He is one of the leading experts on the physics of glow discharges, especially on the sheaths (or boundary regions) of these discharges. www.intota.com /viewbio.asp?bioID=605136&perID=716360   (357 words)

The 2006-2011 World Outlook for High Intensity Discharge Lamp Ballast Transformers - Market Research Report It is for this definition of high intensity discharge lamp ballast transformers that the aggregate latent demand estimates are derived. Based on the aggregate view of high intensity discharge lamp ballast transformers as defined above, data were then collected for as many similar countries as possible for that same definition, at the same level of the value chain. Depending on original data sources used, the definition of “high intensity discharge lamp ballast transformers” is established. www.mindbranch.com /products/R307-21304.html   (2889 words)

(WO 03/030212) HIGH INTENSITY DISCHARGE LAMP WITH SINGLE CRYSTAL SAPPHIRE ENVELOPE (57) A high intensity discharge lamp constructed with a tubular envelope composed of single crystal sapphire (100) in which a continuous non-flash arc is created across multiple electrodes (207, 209) to generate a radiation emitting plasma. The lamp may operate at higher temperatures and pressures than conventional high intensity discharge lamps to produce greater luminance at any given power output. The lamp is a small powerful light source, has a longer effective life, and maintains a selected color temperature over the live of the lamp. www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/30212.030410   (219 words)

Plant Engineering: High-intensity discharge lamp update.@ HighBeam Research High-intensity discharge (HID) lamps derive their designation from the fact that they concentrate a lot of light in small package, approaching a point source of light. Plant Engineering: High-intensity discharge lamp update.@ HighBeam Research The high light output of HID lamps permits fewer luminaires to illuminate larger areas, and their intense, point-source emission characteristics permits better optical control and more efficient luminaire design. highbeam.com /library/doc0.asp?docid=1G1:11531741&refid=ink_tptd_mag   (190 words)

Disposal of Fluorescent Light Tubes, High Intensity Discharge Lamps and Flourescent Lamp Ballasts Fluorescent light tubes and lamp ballasts, and high intensity discharge (HID) lamps are found throughout our environment in residences, office buildings, commercial and industrial buildings, streets, and parking lots. Lamps generated as household waste are exempt from regulation as hazardous waste. However, once the waste containing the fluorescent light tubes and HID lamps is declared hazardous, it must be handled as such with all the accompanying regulations and procedures. es.epa.gov /techinfo/facts/pro-fs2.html   (1243 words)

Title page for ETD etd-11192001-150026 The High-Intensity-Discharge Lamps (HID), consisting of a broad range of gas discharge lamps, are notable for their high luminous efficacy, good color rendering, and long life. However, this lamp demands a highly efficient ballast and very complex control circuitry that can achieve fast turn-on and different regulation modes during the lamp start-up process. The lamp small-signal model is presented with simulation and measurements. scholar.lib.vt.edu /theses/available/etd-11192001-150026   (445 words)

Optical absorption spectroscopy on a MH-HID lamps Optical absorption spectroscopy on a metal-halide high intensity discharge arc lamp using synchrotron radiation A sensitive, spatially resolved optical absorption spectroscopy experiment using synchrotron radiation on metal-halide high intensity discharge (MH-HID) lamps was performed. The absolute density and temperature maps from this experiment were used to determine the absolute near-infrared output power from the MH-HID lamp as described in the companion paper (Smith et al 2003). stacks.iop.org /0022-3727/36/1510   (296 words)

A SPICE Compatible Model of High Intensity Discharge Lamps (ResearchIndex) Abstract: A SPICE compatible model of High Intensity Discharge (HID) lamps was developed and verified against experimental results. The model was found to faithfully emulate the static and electrical responses of a High Pressure Sodium lamp under low frequency (50Hz) and high frequency (30kHz) excitation. 1 The High Pressure Sodium Lamp (context) - de Groot, van Vliet - 1986 citeseer.ist.psu.edu /399841.html   (451 words)

U of M: Department of Mechanical Engineering: Events: Seminars. The properties of high intensity lamp electrodes are investigated in a model lamp designed for detailed measurements in noble gases. His research interests, include gas discharges and their application for lamps, gas lasers and other fields of plasma technology. At the cathode, three different modes of arc attachment are identified: a diffuse mode, a spot mode and a super spot mode. www.me.umn.edu /events/seminars/f02/seminar05.shtml   (361 words)

IR losses from a Na/Sc MH-HID lamp A study of the near-infrared (IR) emission from the arc of a metal-halide high intensity discharge (MH-HID) lamp with a sodium/scandium chemistry is reported. Radiometrically calibrated spectra from 0.7 to 2.5 μm were recorded as a function of position on the arc tube of a 250 W lamp. Information from these spectra, combined with absorption measurements in the companion paper (Bonvallet and Lawler 2003), were used to determine the absolute output power in the near-IR from the MH-HID lamp. stacks.iop.org /0022-3727/36/1519   (266 words)

High Intensity Discharge High Intensity Discharge : A generic term for mercury vapor, metal halide, and high pressure sodium lamps and fixtures. High Intensity Discharge (HID) Lamps - Electrical Measurements. High Intensity Discharge (HID) Lamps - Electrical Measurements... www.mongabay.com /reference/environment/High_Intensity_Discharge.html   (180 words)

High Intensity Discharge Lamp Specifications - Greentrees Hydroponics Initial Lumens is the measurement of the intensity of the lamp Initially. Lamps with a high color rendering index make objects appear more true to life. But generally the higher the CRI the lower the lamp efficiency. www.hydroponics.net /learn/high_intensity_discharge_bulb_sp.asp   (357 words)

RECYCLING FLUORESCENT LIGHT TUBES AND HIGH INTENSITY DISCHARGE LAMPS The recycling of fluorescent lights and high-intensity discharge (HID) lamps is a proven technology capable of reliably recovering greater than 99% of the mercury in the spent lights. Fluorescent lights and HID lamps have traditionally had one important drawback: relatively high environmental costs associated with their use, specifically, the disposal costs. EPA's primary objective in designating hazardous waste lamps as a universal waste is to minimize releases of mercury to the environment, ensure safe handling of the lamps, and to keep the lamps out of landfills. p2library.nfesc.navy.mil /P2_Opportunity_Handbook/2_II_6.html   (1136 words)

ARC, High Intensity Discharge, HID, Bike Light, Bicycle Light, Light&Motion Bike Light , Light and Motion Bicycle Light The High Intensity Discharge (HID) lamp provides 13.5 watts of intense natural light that is 3 times brighter than comparable halogen systems. However, our tests show that the ballast will continue to light the lamp below the recommended battery shutoff voltage and that shutoff circuitry is necessary to protect the battery from deep discharge. While others are satisfied to use integrated lamps and reflectors originally designed for movie projectors, we spared no expense to give your eyes the best quality light available. www.bikelights.com /Products/Arc.htm   (714 words)

Day-Brite Lighting - mcPhilben Exit and Emergency Products The UPS Series operates incandescent, magnetic and electronic ballast fluorescent, high power factor compact fluorescent, and high intensity discharge lamp types. The UPS Series operates incandescent, magnetic and fluorescent electronic ballasts, high power factor compact fluorescent, and high intensity discharge lamp types. A UPS Series housing is a free standing NEMA 1 enclosure with a dead front panel, acid resistant powder coat finish, and a bottom access for conduit entries. www.dcolighting.com /mcphilben/indprd.cfm?ID=56   (143 words)

NEMA - Procedures for High-intensity Discharge Lamp Sample Preparation and the TCLP Procedures for preparation of high-intensity discharge (HID) lamps for the Toxicity Characteristic Leaching Procedure (TCLP) are presented in this standard. These procedures are intended to supplement the TCLP by supplying specific instructions for size reduction and other critical procedures specific to the testing of HID lamps. NEMA is the leading trade association in the U.S. representing the interests of electroindustry manufacturers of products used in the generation, transmission and distribution, control, and end-use of electricity. www.nema.org /stds/LL3.cfm   (147 words)

Krypton Lamp - High intensity discharge An hid lamp will last, on the average, 3 to 5 times as long as a halogen bulb. New Krypton Lamp Articles from http://www.eurodezigns.com about Krypton Lamp, and HID Lights. Translucent objects, such as tissue paper and certain types of glass, also allow light to pass through them but diffuse (scatter) it in the process, so that an observer cannot see a clear image of whatever lies on the other side of the object. www.eurodezigns.com /Krypton+Lampo.html   (153 words)

Topeak Moonshine HID Front Bike Light from REI.com Mount the lamp on the center of your handlebar; vertical adjustment is easy and it pivots 30° laterally Instead of a filament, HID lights include a capsule of gas; light is emitted from an arc discharge between two electrodes This is one of the lightest HID systems on the market--and it boasts a long-life Lithium Ion rechargeable battery. www.rei.com /webservices/rei/DisplayStyle/735859   (261 words)

KODAK High Definition 400 Film For best results without special printing, use the color-correction filters in the table below as starting points when you expose these films under fluorescent and high-intensity discharge lamps. High Definition 400 Film is the film of choice for very high quality photography in wide ranging situations, especially with telephoto lenses, limited light conditions, or for stop-action work. High sharpness, resolution, and fine grain allow a high degree of enlargement. www.kodak.com /global/en/consumer/products/techInfo/e7013/e7013.shtml   (1243 words)

Inland Lighting Supplies, Inc. - Suppliers of ballasts, lamps, plastic diffusers, ceiling fans, commercial and decorative fixtures. Lighting Fixtures, Compact & High Intensity Discharge Lamp Ballasts, Track Lighting, As Well As Energy Efficient Lighting & Ballasts. We are a wholesale lighting distributor of Sylvania lamp products, Watt Stopper controls, commercial light fixtures, residential lighting and ceiling fans. We believe our customers are entitled to the highest level of service available and strive to see that they receive it. www.inlandlightingsupplies.com   (140 words)

Mitsubishi Electric Automotive America Product Page: Body & Chassis -- High Intensity Discharge Lamp - HID Mitsubishi Electric Automotive America Product Page: Body & Chassis -- High Intensity Discharge Lamp - HID HID control units are the main components of HID systems. www.meaa-mea.com /products/b_hid.asp   (37 words)

US Patents - Victor D. Roberts Gas Probe Starter for an Electrodeless High Intensity Discharge Lamp Discharge Lamp Using Acoustic Resonant Oscillations to Ensure High Efficiency Combination Lamp and Integrating Sphere for Efficiently Coupling Radiant Energy from a Gas Discharge to a Lightguide www.robertsresearchinc.com /patents.html   (413 words)

Ming_1 A new explanation of the instability of high intensity discharge www.icpig.uni-greifswald.de /proceedings/data/Ming_1   (853 words)

IceCap, Inc. Hamilton, New Jersey Manufacturer Of Electronic Ballasts Designed For All Types Of Fluorescent, Metal Halide & Other High Intensity Discharge Lamp Applications. Ballasts Use A Patented Load Sensing Process That Maximizes Light Output In Any Lamp. ThomasNet provides direct access to the detailed information needed to make a purchasing or specifying decision, including line-item product details, CAD drawings, and more. www.thomasnet.com /profile/1143236/icecap-inc.html   (141 words)

(WO 99/51066) ELECTRONIC BALLAST FOR HIGH INTENSITY DISCHARGE LAMP (57) Disclosed is an electronic ballast for a high intensity discharge lamp which is capable of reducing the number of parts to thereby maintain a high power factor and prevent power loss generated in the circuit thereof. (WO 99/51066) ELECTRONIC BALLAST FOR HIGH INTENSITY DISCHARGE LAMP wipo.int /cgi-pct/guest/getbykey5?KEY=99/51066.991007&ELEMENT_SET=DECL   (127 words)

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