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4651056 |
High-pressure discharge lamp
A cup-shaped lead-through member is sealed in the wall of a ceramic discharge vessel, and has an electrode beam passing through the end wall of the cup-shaped member and sealed thereto. Immediately...
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4633136 |
High-pressure discharge lamp with low power input
A high-pressure discharge lamp with metal halide additives and a power in of less than 100W comprises electrodes (4, 5) which have a shank portion (18) adjacent the seal and a second portion (19)...
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4625149 |
Metal vapor discharge lamp including an inner burner having tapered ends
A metal vapor discharge lamp has a light emitting tube of translucent ceramics which includes a straight tube section of a predetermined diameter and a pair of tube end sections having their...
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4621216 |
High-pressure discharge lamp with shielded electrode
The invention relates to a high-pressure discharge lamp having a discharge envelope (3) with a ceramic wall provided with at least one electrode (4). The electrode (4) comprises a rod (41) which is...
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4559472 |
High-pressure discharge lamp having support structures for the elongate electrodes thereof
A high-pressure discharge lamp having a glass enclosure defining a discha space and envelope portions extending away from the discharge space is provided with elongate electrode portions extending...
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4545799 |
Method of making direct seal between niobium and ceramics
A high pressure arc lamp has a ceramic arc tube envelope. A niobium feedthrough positions electrodes within the tube. A ceramic insert at each end of the tube forms a direct high temperature...
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4542316 |
Discharge lamps
The invention relates to a single ended discharge lamp, such as a CID or CSI lamp having a bi-pin base. The base is such as to fit a socket suitable for lamps such as tungsten halogen filament...
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4539509 |
Quartz to metal seal
A lead-free sealing glass consisting essentially of, in parts by weight, 8-25 BaO, 20-35 B 2 O 3 , and 45-72 Sb 2 O 3 except for incidental impurities, residual fluxes and refining agents...
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4533851 |
High-pressure electric discharge lamp with interfitting socket and support
A halogen-metal vapor lamp (1) with its electrodes coming out of the discharge vessel at opposite ends is provided with a highly insulated socket at one end capable of withstanding 30 kV that may...
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4531074 |
Electrical current inlet particularly for discharge tubes of high pressure discharge light sources
Electrical current supply terminal, especially for discharge tubes of light sources having a high pressure gas discharge. The invention is concerned with an electrical feed through, especially for...
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4524306 |
Extra-high pressure mercury discharge lamp
An extra-high pressure mercury discharge lamp comprising an end-sealed glass tube shaped to provide a long arc type tube, mercury contained in the both ends respectively of the glass tube, a pair...
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4521641 |
Solder glass and electrical device employing the same
A solder glass comprised of about 65 weight percent Sb 2 O 3 ; about 30 weight percent B 2 O 3 and about 5 weight percent V 2 O 5 . The glass is black and extremely visible when employed as a...
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4517493 |
Fluorescent lamp with cathode heat switches
A rapid start fluorescent lamp comprising a pair of cathode mounts each having a pair of lead-in wires for cathode heating current, and a thermal switch to turn off the heating current after...
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4507584 |
Discharge lamp with metal coil electrode support inserted into cermet end cap
High pressure discharge lamps have discharge tubes of ceramic material having end caps into which electrodes are mounted on fixed shanks. The invention provides a preferred construction for...
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4482842 |
Curved tube type ultra high pressure mercury arc discharge lamp device
In a curved tube type ultra high pressure mercury discharge lamp device of the type comprising an arcuate glass tube, a quantity of mercury contained in both ends of the glass tube and electrodes...
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4475061 |
High-pressure discharge lamp current supply member and mounting seal construction
A high-pressure discharge lamp having a ceramic discharge vessel comprising an ionizable filling which in the operating condition of the lamp comprises a component present in excess, and in which...
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4469983 |
Electric lamp with an envelope seal designed as pinch seal, and a device and method for its manufacture
The lamp has a pinch seal which surrounds a mounting structure carrying l-in wires of the filament; the front face (7) terminating the lamp envelope end forms substantially a plane, and is...
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4464603 |
Ceramic seal for high pressure sodium vapor lamps
An improved end closure for a tubular light-transmitting ceramic envelope used in sodium vapor lamps is disclosed which comprises assembly of a ceramic disc fitted into one end of a metal sleeve...
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4463281 |
High-pressure electric discharge lamp with electrode support
A high-pressure electric discharge lamp comprises a support part surround each electrode rod, each electrode rod having a spring wound therearound and pressing the respective support part toward an...
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4441051 |
Lamp seal glass
A lamp seal glass is described suitable for direct hermetic sealing to molybdenum which consists essentially of oxides in approximate percent by weight 52-60 SiO 2 , 11-17 Al 2 O 3 , 11-16 BaO,...
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4415829 |
Direct current operable arc lamp
A D.C. operable, miniature, low-wattage, single ended, arc discharge lamp. The cathode electrode includes electrical field modifying means to insure that the arc strikes between the electrode tips....
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4409517 |
High-pressure discharge lamp with envelope lead-through structure
The invention relates to a high-pressure discharge lamp for use in the vertical position, having a tubular ceramic discharge vessel, the electrodes being connected to current lead-through members...
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4376905 |
Electric lamp provided with a ceramic discharge tube
There is disclosed an electric lamp with a ceramic discharge tube and a current inlead consisting of two or more elementary filaments passing through a ceramic closing member and soldered thereto....
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4376906 |
Electrode ribbon seal assembly
An improved high intensity metal halide lamp constructed from a lamp envelope assembly to which are fused a pair of mating prebeaded electrode assemblies. The lamp envelope assembly is formed from...
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4354137 |
Incandescent lamp having seal-anchored filament mount, and method of making such lamp
The envelope of a compact halogen-cycle incandescent lamp is made from hard glass and the uncoiled legs of the tungsten filament are used as filament connector-support members by fastening them...
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4340264 |
Manufacture of glass base lamp
An article of manufacture and a method for manufacturing a mercury vapor lamp wherein a glass mounting base is formed separately and fixed by fusing it to one end of a tubular glass envelope. The...
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4326146 |
Base and terminal-pin assembly for electric lamps and similar devices
The lead-in wires of a fluorescent lamp (or similar device) are electrically connected to the base pins by mechanical means instead of welding or soldering the members to each other in the...
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4324998 |
Base and terminal-pin assembly for an electric lamp
The lead-in wires of a fluorescent lamp are electrically connected to the base pins by mechanical means instead of welding or soldering the members to each other in the conventional manner. This is...
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4310773 |
Glass flash tube
A xenon flash tube is disclosed utilizing a particular borosilicate glass for the lamp envelope which is sealed directly by hermetic seal to inleads of a metal alloy predominantly of iron, nickel...
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4282395 |
High melting point glass-to-metal seal and melt connection, particularly for tungsten supply wires for high-pressure discharge lamps
To permit direct melting-in of a rod or wire-shaped conductor through a gs wall of quartz glass (thermal coefficient of expansion: 5-6.10 -7 /°C.) in which the wire, for example, is tungsten...
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4277716 |
Glass-to-metal seal construction
There is disclosed herein a glass-to-metal seal construction especially adapted for use in the fabrication of devices of the compact arc discharge lamp or gas discharge laser type.
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4254356 |
Inlead and method of making a discharge lamp
The inlead for the electrode sealed into a quartz arc tube has a foil portion which is stiffened by reversely folded lateral edges. The folds overlap the tapering region of greater stiffness where...
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4243906 |
High pressure mercury vapor discharge lamp
The advantageous light-technical properties of the alkaline earth and rare earth halides can be utilized without an excessive thermal load of the wall of the vessel occurring, if the discharge...
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4242648 |
High power electrode and feedthrough assembly for high temperature lasers
A double sealed technique in an evacuated quartz jacket produces an electrical feedthrough assembly suitable for use in sealed-off, pulse, longitudinal discharge lasers compatible with operating...
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4232243 |
High pressure electric discharge lamp
In a high pressure electric discharge lamp having tungsten electrodes and a discharge envelope filling of mercury, rare gas, and metal halides, activator material consisting essentially of scandium...
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4221989 |
Electric lamp seal construction
In electric lamps according to the invention the alkali-alumino-borosilicate glass of the pinch seal of the lamp envelope is directly fused to the molybdenum current supply wire of diameter D. A...
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4221987 |
High-pressure discharge tube operable in the open air without outer protective envelope
The high-pressure electric discharge tube of the invention can operate in the open air, with at least 10 Hg mm inner pressure. It has a preferably ceramic (or crystalline) envelope that constitutes...
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4219757 |
Gas discharge lamp
A gas discharge lamp having a glass tube with preformed sintered glass bodies sealed to each end with each body carrying at least one connector pin for an electrode so that at least one electrode...
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4203050 |
Gas discharge lamp and method
A gas discharge lamp, particularly useful as a flash tube, has a glass tube and electrode feed-through conductors which are connected with the glass tube in gas-tight relationship via glass members...
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4199704 |
Alumina, calcia, baria, strontia sealing composition and article of manufacture
An improved sealing composition for use between alumina ceramic parts, or between alumina ceramic and refractory metal, is based on 40 wt% Al 2 O 3 , 35 wt% CaO, 15 wt% BaO and 10 wt% SrO, and has...
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4179037 |
Xenon arc lamp with compressive ceramic to metal seals
A high pressure arc lamp envelope having an anode portion and cathode portion, separated by a ceramic insulator, is configured to prevent the high pressure from causing tensile stresses in the...
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4171500 |
Electric lamp
Electric lamps having a simple, strong and reliable current lead-through construction according to the invention have, on a tungsten lead-through conductor, a first glass layer on which and between...
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4161672 |
High pressure metal vapor discharge lamps of improved efficacy
High pressure discharge lamps containing a fill of mercury and metal halides, having a power input of 250 watts or below and useable for general illuminating purposes achieve higher efficacy by...
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4160930 |
Electric discharge lamp with annular current conductor
The current leadthrough for the auxiliary electrode of a discharge lamp with ceramic lamp vessel is constructed as a cylindrical tube concentric with the leadthrough of the main electrode. The...
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4160186 |
Closure structure of electric discharge tubes
Electric discharge tube having a hollow cylindrical bulb formed either of a ceramic material or from sapphire having first and second open ends. First and second end caps or closure members are...
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4136298 |
Electrode-inlead for miniature discharge lamps
An electrode-inlead assembly comprises a small tungsten pin which is joined on axis to a fine molybdenum wire adapted to sealing through fused silica. The join is effected by a laser butt weld...
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4122042 |
Composite body useful in gas discharge lamp
A composite body consisting of two or more formed parts of densely sintered aluminum oxide and a metal such as an envelope for a mercury vapor discharge lamp with a metal halide filling. The parts...
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4105826 |
High-temperature glass composition
Aluminosilicate glasses containing BaO and CaO are provided having combined high softening points along with exceptionally low liquidus temperatures. These glasses are within the following...
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4092560 |
Vapor discharge lamp cermet electrode-closure and method of making
A cermet seal for high pressure gas discharge lamps which also serves as an electrode, is made from a metallic component suitable for use as an electrode, and a ceramic component which is a metal...
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4065691 |
Ceramic lamp having electrodes supported by crimped tubular inlead
A high pressure alkali metal vapor lamp envelope of alumina ceramic has an end closure which includes an externally projecting thin-walled metal tube serving as in inlead and as a reservoir for...
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