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8106590 |
Vehicle headlamp
Metal halide lamp suitable as projection lamp, for instance as a vehicle headlamp comprising a discharge vessel surrounded by an outer envelope with clearance and having a ceramic wall which...
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7990035 |
Metal vapor discharge lamp with a restrain member for inner tube
With regard to a metal vapor discharge lamp with a triple tube structure including a discharge tube, an inner tube, and an outer tube, misalignment of axes of the inner tube and the outer tube is...
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7982400 |
Starting aid for HID lamp
A high-intensity discharge lamp includes a discharge vessel made of an insulator, and a cathode and anode. A V-shaped gap is provided between the anode and a first region of the vessel directly...
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7834533 |
T8 fluorescent lamp
A T8 fluorescent lamp can comprise a light-transmissive glass envelope, means for providing an electrical discharge to the glass envelope, a phosphor layer within the glass envelope and a...
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7830076 |
Incandescent halogen lamp
The invention relates to an incandescent halogen lamp, comprising at least one tungsten incandescent filament (3) in a transparent light bulb (1) and a filling in the light bulb (1), which has a...
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7750571 |
Increasing the discharge arc diffuseness in mercury-free discharge lamps
A mercury-free gas discharge lamp suitable in particular for motor vehicles has an enhanced discharge arc diffuseness. The lamp according includes an inner vessel and/or outer bulb with a...
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7683550 |
Low-pressure discharge lamp and back light device using the same
A low-pressure discharge lamp (1) is provided that includes a glass tube (2) having an inner diameter in a range of 1 to 5 mm and a pair of electrodes (3) disposed at end portions in the glass tube...
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7683549 |
Metal halide lamp with fill comprising lead halide
A metal halide fill for forming an ionizable fill comprises at least one inert gas, mercury and metal halides, comprising the constituents Na halide, Tl halide, Ca halide and halides of the rare...
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7573203 |
Mercury-free high-pressure discharge lamp and luminaire using the same
A mercury-free high-pressure discharge lamp includes a light-transmissive airtight envelope enclosing therein a discharge space, and a pair of electrodes sealed inside the light-transmissive...
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7514874 |
Ceramic metal halide lamp with specific halide dosage to mercury weight ratio
A ceramic metal halide lamp wherein the halide dose includes the following component ranges in mol/cm3: Nal: 1.84×10-5 to 2.33×10-5, Lnl3: 5.20×10-6 to 6.60×10-6, Tl: 1.76×10-7 to 2.23×10-7, where...
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7489083 |
Mercury-free arc tube for discharge bulb
The arc tube is provided with a mercury-free arc tube main body that has a discharge light-emitting portion (closed glass sphere), and a cylindrical shroud glass tube that is airtightly integrated...
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7468584 |
Discharge lamp with a discharge filling having a measured emission intensity of argon to OH radicals and method of manufacturing the same
Process for producing a discharge lamp having a silica discharge vessel with an emission space in which there is a pair of electrodes at least 0.15 mg/mm3 of mercury, argon (Ar), and halogen by...
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7468585 |
Metal halide lamp
A metal halide lamp of the present invention has an arc tube formed of ceramic and a pair of opposing electrodes. This lamp includes a Pr (praseodymium) halide, a Na (sodium) halide, and a Ca...
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7449129 |
Ce,Pr-coactivated strontium magnesium aluminate phosphor and lamp containing same
A Sr(Al,Mg)12O19:Ce,Pr phosphor is described wherein the phosphor has an increased sensitivity to excitation by 185 nm radiation compared to a Sr(Al,Mg)12O19:Ce phosphor. The Ce,Pr-coativated...
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7435358 |
UVC-emitting Sr(Al,Mg)12O19:Pr phosphor and lamp containing same
The UVC emission of a Sr(Al,Mg)12O19:Pr is improved by providing an excess of magnesium relative to the molar amount praseodymium In particular, the UVC-emitting phosphor has a composition...
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7419621 |
UV-emitting phosphor and lamp containing same
A UV-emitting phosphor is described wherein the phosphor is excitable by vacuum ultraviolet radiation (VUV). The phosphor is a gadolinium-activated strontium magnesium aluminate which preferably...
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7388332 |
Metal vapor discharge lamp, floodlight projector and metal vapor discharge lamp lighting device
A metal vapor discharge lamp whose near-infrared radiation is stronger than a conventional high-pressure discharge lamp, a projector utilizing this discharge lamp, and a metal vapor discharge lamp...
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7265493 |
Mercury-free compositions and radiation sources incorporating same
A radiation source with an ionizable mercury-free composition. The ionizable composition including at least zinc or at least one zinc compound or both.
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7245075 |
Dimmable metal halide HID lamp with good color consistency
Metal halide lighting with good color during dimming may be obtained. An appropriate balance of commonly used metal halides (NaI, DyI3, CeI3, CaI2, TlI) is dosed in the lamp. No mercury is used. A...
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7161302 |
High lamp-power lighting system and fluorescent lamp
A lighting system includes a fluorescent lamp 4 and a main body 1 for attaching the fluorescent lamp 4 thereto. The main body 1 is provided with a socket assembly 6 for the attachment of the...
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7141932 |
Metal halide lamp and automotive headlamp apparatus
A metal halide lamp includes a fire-resistant and translucent hermetic vessel containing amounts of scandium halide and sodium halide sealed in the hermetic vessel satisfying the formula of...
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7138766 |
Dimmable metal halide lamp and lighting method
A metal halide lamp in which an arc tube is housed within a bulb having a base at one end thereof. The arc tube includes a main tube, two thin tubes that extend one from each end of the main tube,...
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7116049 |
Discharge tube with a specific amount of hydrogen gas by volume
In a discharge tube of the present invention, a filler gas is composed of a mixture of inert gas and hydrogen gas and an airtight cylinder 10 in which the filler gas is enclosed in an airtight...
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7116050 |
Metal halide lamp, headlight apparatus for vehicle using the same, and method of manufacturing metal halide lamp
A metal halide lamp comprises a discharge container including a discharge space and a pair of sealing sections. A discharge medium containing a metal halide and a rare gas and essentially free from...
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7057349 |
Lightening device for metal halide discharge lamp
A metal halide discharge lamp which essentially permits disusing mercury is provided. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes...
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RE38807 |
High pressure discharge lamp, with tungsten electrode and lighting optical apparatus and image display system using the same
The present invention provides a high pressure discharge lamp which is provided with a discharge tube containing a pair of electrodes therein and being filled with mercury, an inert gas and a...
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6946797 |
Metal halide fill, and associated lamp
A metal halide fill for forming an ionizable fill comprising at least one inert gas, mercury, and at least one halogen, the fill additionally comprising the following constituents: Mn halide and V...
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6946796 |
Light source device and liquid crystal display employing the same
A light source device includes at least one discharge tube, a discharge medium sealed inside the discharge tube, and first and second electrodes for exciting the discharge medium. The first...
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6943498 |
High intensity discharge lamp and high intensity discharge lamp system using the same
To provide a high-efficiency and long-life high intensity discharge lamp that is obtained by a configuration in which a neon gas or a neon-based gaseous mixture is filled as a starting-assistance...
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6861807 |
Control of leachable mercury in mercury vapor discharge lamps
The invention relates to a high-pressure gas discharge lamp, particularly a motorcar lamp, comprising a bulb including at least two neck portions and a vacuum-tight discharge vessel of quartz...
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6853140 |
Mercury free discharge lamp with zinc iodide
A compact fused silica, electroded HID lamp for automotive forward lighting, which contains no mercury. The lamps voltage, approximately 40 volts, is developed in this lamp by vaporizing zinc...
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6847167 |
High-pressure gas discharge lamp
The high-pressure gas discharge lamp (1) comprises a lamp vessel (2) having a wall (3) which is exposed to a wall load of at least 30 W/cm2 during operation of the lamp, and a discharge space (4)...
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6841938 |
Metal halide lamp
Metal halide lamps have a discharge vessel operable at a high coldest spot temperature. The discharge vessel encloses a discharge space comprising an ionizable gas filling and, in addition to Hg,...
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6806648 |
Light source device and liquid crystal display device
A light source device includes at least one discharge tube, a discharge medium sealed inside the discharge tube, and first and second electrodes for exciting the discharge medium. The first...
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6805814 |
Phosphor for light-emitting element excited by vacuum ultra-violet ray
The objective of the present invention is to provide a phosphor for use in a light emitting element excited by vacuum ultraviolet-ray that has high brightness even after plasma exposure. This...
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6803724 |
Electrodeless lamp and lamp bulb therefor
A bulb for an electrodeless lamp comprises: an envelope through which the light can be permeated; a filled material filled in the envelope for emitting the light as being excited by high frequency...
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6736994 |
Phosphor
A phosphor having a high emission luminance and a vacuum ultra-violet radiation excited light emitting element in which the phosphor is used are provided. The phosphor may be made of Ba, Gd, Y, B,...
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6734630 |
Metal halogen electrodeless illumination lamp
A metal halogen electrodeless illumination lamp including a microwave generator coupled via a coupling means with a microwave cavity which contains a discharge bulb, and a microwave screen its...
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6731069 |
Mercury-free metal halide arc lamps
A mercury-free metal halide arc lamp having an arc vessel of fused silica, an aspect ratio greater than 5, and containing a noble gas such as xenon, argon or krypton and a metal halide. In a...
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6724145 |
Discharge lamp
The invention provides an arc tube with improved chromaticity and start-up characteristics that does not contain mercury, and provides a vehicle headlamp equipped with a metal halide lamp that...
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6713958 |
Alternating current driven type plasma display device
An alternating current driven type plasma display device includes a plurality of sustain electrodes having a spacing less than 5×10−5 m and a discharge gas in a discharge space where discharge ta...
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6689292 |
Method of producing aluminate phosphor
It is desired to provide an aluminate phosphor having a high emission luminance, a method for producing the same, and a vacuum ultra-violet radiation excited light emitting element in which the...
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6670759 |
Electrodeless discharge lamp
An electrodeless discharge lamp includes an envelope filled with a luminescent material to be excited to emit light and a filling material that substantially does not discharge to emit light. The...
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6657390 |
Short-arc discharge lamp
To realize high irradiation efficiency and intensity stability for extending lifetime of the short-arc discharge lamp to be used for IC exposure apparatus or the like. For this end, mercury and...
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6627114 |
Rare earth oxide type phosphor for vacuum ultraviolet ray excitation, phosphor paste composition and vacuum ultraviolet ray excitation type light-emitting device
A phosphor for vacuum ultraviolet ray excitation, which comprises a rare earth oxide type phosphor, wherein at least part of the surface of the rare earth oxide type phosphor is coated with a...
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6605892 |
Gas discharge lamp and method for the production thereof
A gas discharge lamp having a discharge vessel, for example composed of a base plate, front plate (2) and frame (3), has at least one closure element (6) which closes a discharge vessel opening in...
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6583566 |
Low wattage fluorescent lamp having improved phosphor layer
A low-wattage mercury vapor discharge lamp is provided for use with existing 110V high frequency electronic ballasts. The lamp has a discharge sustaining fill of mercury and an inert gas mixture of...
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6555962 |
Ceramic metal halide lamp having medium aspect ratio
A metal halide lamp has a ceramic discharge vessel with an inside length L, an inside diameter D, and an aspect ratio L/D of between 3 and 5. The fill gas includes xenon, mercury, sodium halide,...
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6522084 |
Electrodeless discharge lamp operating apparatus
An electrodeless discharge lamp operating apparatus includes a transparent discharge vessel (1) in which a luminescent substance is enclosed; a coil (3) for generating an alternating...
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6498429 |
Sodium-xenon lamp with improved characteristics at end-of-life
A mercury-free high pressure sodium vapor lamp is dosed with sodium, xenon and zinc as an elemental metal additive. The addition of the metal additive prevents an undesirable low-voltage operating...
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