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5285128 |
Low-pressure discharge lamp
The present invention relates to low-pressure discharge lamp having a discharge tube filled with mercury and a noble gas, sealed in a gas-tight manner and provided with electrodes at its ends and...
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5276379 |
Arc discharge lamp having cementless base members
An arc discharge lamp including an electrically insulative base member securely positioned at opposite ends of the lamp without the need for basing cements or the like. The base member includes at...
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5264759 |
High-pressure, high-power discharge lamp, and method of its manufacture
To provide a high-pressure lamp capable of carrying lamp currents of 100 eres and higher, an essentially rotation-symmetrical discharge space (2) has two cylindrical necks (3, 4) melt-sealed...
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5250872 |
Discharge lamp unit having improved discharge tube mount
In a discharge lamp unit in which a discharge lamp (10), which is formed by pinch-sealing (13a, 13b) a glass tube in such a manner as to define a closed glass ball (12) forming an electric...
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5241239 |
Tubular electric lamp having a lamp base sleeve with an access port for securing a contact to a current-conductor
A tubular electric lamp has lamp bases each consisting of an electrically insulative sleeve and conductive contact mounted therein. The sleeve has a first abutment which buts against the seal, a...
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5208509 |
Arc tube for high pressure metal vapor discharge lamp
An arc tube for a high pressure metal vapor discharge lamp is provided. The arc tube of the present invention comprises a tubular ceramic envelope; a chemical fill within said envelope; a seal...
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5200669 |
Elevated power high-pressure discharge lamp
To prevent stresses from occurring in lamps in which an electrode system luding, for example, tungsten or molybdenum electrode shafts (4, 12, 22) and current supply leads (15, 26) of, for example,...
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5198722 |
High-pressure discharge lamp with end seal evaporation barrier
A high pressure discharge lamp having a translucent sintered aluminum oxide envelope, has a tubular current lead-in member, secured in a gas tight manner by an end-plug secured to the current...
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5159239 |
Electric lamp with SiO.sub.2 vessel and seal therefor
The electric lamp has a quartz glass lamp vessel having tungsten current supply conductors extending through the wall of the lamp vessel to an electric element arranged in the lamp vessel. The...
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5144192 |
High-pressure discharge lamp
To prevent electrolytic current flow between adjacent sealing foils (6,7; 15) within a pinch seal (10, 13) at the operating temperature of the pinch seal, in operation of the lamp, the pinch seal...
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5144201 |
Low watt metal halide lamp
A metal halide arc discharge lamp is disclosed having a power input rating of not more than 35 watts. The lamp includes an envelope of light transmissive material, such as fused quartz, including a...
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5142191 |
Aperture fluorescent lamp with press seal configuration
A subminiature aperture of fluorescent lamp is fabricated with press seals to facilitate accurate orientation of the aperture relative to an optical system. Flat surfaces of the press seal are...
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5142195 |
Pinch-sealed high pressure discharge lamp, and method of its manufacture
A double-ended, double-sided pinch seal discharge lamp has pinch seals at posite ends of a discharge vessel, in which the broad side surfaces of the pinch seal, retaining a molybdenum foil (8) is...
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5140217 |
Electric lamp having a push-in filament insert for filament mounting
An electric lamp having a filament with open coiled ends and filament inserts have an end insertable into the open filament ends without threading cooperation and lockingly engage the filament...
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5140222 |
High-pressure discharge lamp
To reduce the quantity of a noble gas, typically xenon, and improve the sk and vibration resistance of the quartz glass bulb upon possible movement of electrode support shafts (4, 4') in transport...
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5138227 |
High-pressure discharge lamp, particularly double-ended high-power, high-wall loading discharge lamp, and method of making the same
To reduce the axial length of high-power, high-pressure discharge lamps, for example between 1000-4000 W rating, while reducing the temperature, in operation, of a connection foil (8) adjacent the...
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5138226 |
Surface mountable miniature incandescent light
A miniature incandescent lamp assembly has an elongated substantially cylindrical glass envelope having a first end and a second end. A substantially cylindrical first metal end member seals the...
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5128588 |
Discharge lamp with molybdenum sealing foils
A large output discharge lamp comprising rod-like electrodes having confronting ends defining therebetween the discharge gap and being disposed in a bulb body. The other ends of the electrodes...
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5126621 |
Ruggedized flashlamp exhibiting high average power and long life
A flashlamp provides a ruggedized yet simple-to-manufacture construction capable of operating at high average output power over a long life. The flashlamp construction includes a glass tube (12)...
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5117156 |
Rapid start fluorescent lamp having quick hot restarting
A rapid start fluorescent lamp having an improved hot restarting time. The lamp includes the standard envelope and end cap through which electrical connection is made by conductive feedthroughs...
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5103135 |
Gas-discharge surge arrester
A gas-discharge surge arrester that can be manufactured at a low cost and suitable for automatic bulk processing. The surge arrester includes an insulator which comprises a small ceramic tube. A...
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5099174 |
Arc tube for a discharge lamp
A sealing composition is provided for joining crystalline ceramic or cermet parts, e.g. in an arc tube for a discharge lamp. The sealing composition comprises, as starting materials, a mixture of...
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5097177 |
Glow starter with a faster turn on time for a fluorescent tube
A quick start initiator for a flourescent light comprises a sealed glass bulb, a long conductor rod centrally located within the bulb, a pair of short conductor rods positioned to either side of...
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5095246 |
Niobium-ceramic feedthrough assembly
A process for sealing of niobium-ceramic through-wall assemblies for ceramic or metal vessels for high temperature and high pressure or vacuum applications, for example an electrical feedthrough...
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5091675 |
Flashbulb having hard glass containing emitter substances
A flashbulb having an increased energy density. The composition of the hard glass of the flashbulb is selected such that the components thereof that volatilize easily during a discharge of the...
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5077505 |
Electric lamp and seal structure therefor
The electric lamp has a quartz glass lamp vessel (1) with molybdenum current supply conductors (3) extending to an electric element (2) arranged in the lamp vesel (1). The current supply conductors...
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5064395 |
Compact outer jacket for low wattage discharge lamp
A compact arc discharge lamp may be formed with an inner lamp capsule and an outer envelope. One or more of the leads to the inner capsule may be sheathed to insulate the lead from improper arc...
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5057742 |
Discharge tube
A discharge tube has a sealed envelope filled with a gas; an anode, cathode and shielding electrode built in the sealed envelope; and electrode holding pins. At least eight electrode holding pins...
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5055735 |
High pressure discharge lamp having improved containment structure
The high pressure discharge lamp has containment structure in the outer envelope which encloses the discharge vessel. The containment structure consists of a glass cylindrical sleeve closed at its...
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5039909 |
Electric lamp and holder for such a lamp
The electric lamp has a lamp vessel (1) having a pinch seal (2) having two major side faces (7, 8) and two minor side faces (9, 10), the latter being provided with grooves (11, 12). The grooves...
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5036439 |
Car headlight lamp and method of manufacturing same
A car headlight lamp having a lamp envelope (1), which is closed by seals (2) through which current lead-in members (3,4) are passed and is secured by a holding member to a socket (17), the holding...
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5025192 |
End base construction for a discharge lamp
Disclosed herein is a discharge lamp comprising a light-emitting tubing equipped with an envelope having side tube portions of a graded seal structure; and cylindrical bases fitted on the side tube...
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5023506 |
Explosion proof high pressure discharge lamp
A high pressure metal halide discharge lamp having a containment sleeve closed by a pair of metallic end caps for containing arc tube fragments in the event of explosive failure of the arc tube....
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5021711 |
Quartz lamp envelope with molybdenum foil having oxidation-resistant surface formed by ion implantation
A quartz lamp envelope includes a press seal, at least one molybdenum foil feedthrough extending through the press seal to the lamp interior, and an external electrical lead connected to the...
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5015913 |
High-pressure discharge lamp, especially sodium vapor lamp
A ceramic plug (7) is sintered into an end of a tubular discharge vessel 6). The plug (7) has an opening with a cylindrical portion (12) and a conical portion (13). The conical opening faces the...
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5008592 |
Halogen incandescent lamp and method of manufacturing a halogen incandescent lamp
The halogen incandescent lamp has a tipless lamp vessel (1) having a first seal (3), in which a current supply conductor (7) with a foil-shaped part (9) of small width (w 1 ) is accommodated, and a...
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5006757 |
Incandescent lamp
An incandescent lamp comprises a glass envelope, a filament supported by constricted portions of the glass envelope, lead rods extending from both ends of the filament, tapered constricted portions...
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5001395 |
High-pressure discharge lamp with corrosion protected electrode leads
To protect tungsten electrode shafts (2, 3; 15, 16) extending into the a rtz glass discharge chamber (13, 27) of a high-pressure discharge lamp from attack by metal halides included in the fill to...
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5001396 |
Arc tube and high pressure discharge lamp including same
An arc tube including a tubular ceramic envelope; a chemical fill within the envelope; a seal button at each end of the envelope, the seal button having an aperture therethrough for receiving a...
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4998036 |
Metal vapor discharge lamp containing an arc tube with particular bulb structure
A single end-sealed type metal vapor discharge lamp includes an arc tube having a bulb made up of a discharge portion defining a discharge region and a sealing portion with a shoulder portion...
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4988916 |
Discharge arc lamp
In a discharge arc lamp, an arc tube comprises an arc tube body and a main electrode at each end inside of the arc tube body, between which in the operating condition of the lamp a discharge takes...
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4987341 |
Flash lamp with metal coating on an outer end of an electrode thereof
A flash lamp which has two electrodes of refractory metal fused into a glass housing. In order to enable a soft-soldered connection, the outer end of the electrodes is respectively connected to a...
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4980236 |
Composite body
The invention relates to a composite body comprising a first part of ceramic material, a second part of metallic material, of ceramic material or of a mixture of metallic and ceramic material, and...
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4975620 |
Metal vapor discharge lamp and method of producing the same
A metal vapor discharge lamp has a luminous tube constituted by a translucent ceramic tube member, end caps hermetically fixed to both ends of the translucent ceramic tube member, and electric...
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4970425 |
Thermal device, mount, and manufacturing method
A thermal device, such as a glow discharge starter, includes an hermetically sealed envelope containing an ionizable medium, a bimetallic electrode having a bimetallic element associated therewith,...
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4970428 |
Double-ended miniature lamp
A double-ended miniature lamp comprises a filament enclosed in a hollow bulb. Lamp lead wires are connected with both the ends of the filament and emerge from closed ends of the bulb. Square-shaped...
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4963791 |
High pressure sodium discharge tube support structure
A reflector lamp having an outer reflector envelope filled with a rare gas at a pressure of approximately one atmosphere during lamp operation, a high pressure sodium discharge device within the...
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4959583 |
Reflective lamps having an improved light source mounting arrangement
A structure for supporting a light source within an electric lamp having an internal reflective surfaces of reduced dimensions is disclosed. The structure spatially supports the central portion of...
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4959587 |
Arc tube assembly
The present invention relates to an improved arc tube assembly for a high intensity metal halide lamp. The invention provides improved sealing structure for the electrode assembly using a foil to...
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4959585 |
Electric incandescent lamp and method of manufacture therefor
An electric incandescent lamp having an improved coiled refractory metal filament construction is disclosed which enables the lamp to provide a more precise light source. Various lamp and coiled...
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