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4963799 |
Acoustic enhancement of multichannel spark gap
A spark gap system is disclosed that includes an enclosure which contains a gas medium; two rail electrodes which extend into the enclosure and which are separated from each other by the gas...
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RE33285 |
Touch controlled switch for a lamp or the like
A small electronic module to regulate the power delivered to a lamp or similar appliance is plugged into the household electrical outlet and the lamp to be controlled is, in turn, plugged into the...
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4937500 |
Binary and ternary gas mixtures with temperature enhanced diffuse glow discharge characteristics for use in closing switches
An improvement to the gas mixture used in diffuse glow discharge closing switches is disclosed which includes binary and ternary gas mixtures which are formulated to exhibit decreasing electron...
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4931688 |
Multifunction gas triode
A gas-filled triode with an anode, a cathode, and a control electrode therebetween having trigger and corona portions defining gaps respectively with the anode and cathode. The triode detects...
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4896076 |
Binary and ternary gas mixtures for use in glow discharge closing switches
Highly efficient binary and ternary gas mixtures for use in diffuse glow discharge closing switches are disclosed. The binary mixtures are combinations of helium or neon and selected perfluorides....
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4839566 |
Circuit for supplying power to a dental photopolymerizing apparatus
An electric lamp for the photopolymerization of dental materials is supplied with constant electric power so that constant light output is obtained. The control circuit used to this end operates...
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4833368 |
Outdoor lighting controller including wiper element for light sensor
An outdoor lighting controller including a light sensing element for automatically activating and de-activating an outdoor light source. A wiper is provided for removing accumulated dust from the...
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4818915 |
Arc discharge lamp with ultraviolet radiation starting source
A metal halide arc discharge lamp comprises an arc tube containing a chemical fill including mercury and metal halides and having first and second electrodes respectively sealed at opposite ends...
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4812714 |
Arc discharge lamp with electrodeless ultraviolet radiation starting source
A metal halide arc discharge lamp comprises an arc tube containing a chemical fill including mercury and metal halides and having first and second electrodes respectively sealed at opposite ends...
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4761548 |
Optically triggered high voltage switch with cesium vapor
An electric arc discharge switch having less susceptibility to electrode erosion and capable of being optically triggered. In a first embodiment the switch includes a gas tight body defining a...
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4751428 |
Ternary gas mixture for diffuse discharge switch
A new diffuse discharge gas switch wherein a mixture of gases is used to take advantage of desirable properties of the respective gases. There is a conducting gas, an insulating gas, and a third...
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4743807 |
Laser activated diffuse discharge switch
The invention is a gas mixture for a diffuse discharge switch which is capable of changing from a conducting state to an insulating state in the presence of electrons upon the introduction of laser...
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4721888 |
Arc discharge lamp with ultraviolet enhanced starting circuit
An apparatus and method for increasing the reliability of an arc discharge occurring in metal halide gas discharge lamps by providing UV radiation in the gas discharge path.
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4652790 |
Electrodeless discharge lamp
An electrodeless discharge lamp having an ultraviolet radiation transmission envelope containing a plasma-forming medium. The envelope is formed from two different types of quartz, one of which...
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4555648 |
Electronic flash unit utilizing pre-flash illumination of flashtube
An electronic flash unit for emitting flashlight toward an object to be photographed in order that a camera may obtain proper exposure comprises flash means having a flash tube which emits...
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4543511 |
Semiconductor electrodes having regions of graded composition exhibiting photoluminescence and electroluminescence
A photoelectrochemical cell (10) is disclosed which has a semiconductor substrate (11) formed of a solid solution of three metal and non-metal elements, with two like elements varying in...
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4490651 |
Laser triggered high voltage rail gap switch
The laser-triggered high voltage rail gap switch includes two parallel electrodes in a high pressure environment of SF 6 and Ar. A pulsed UV laser directs a coherent beam parallel to the...
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4490650 |
Gas mixture for diffuse-discharge switch
Gaseous medium in a diffuse-discharge switch of a high-energy pulse generator is formed of argon combined with a compound selected from the group consisting of CF 4 , C 2 F 6 , C 3 F 8 , n-C 4 F...
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4485333 |
Vapor discharge lamp assembly
A miniaturized vapor discharge lamp assembly that includes a light transmissive bulb containing a buffer gas and a vaporizable light radiating substance such as rubidium. Lamp excitation is...
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4484106 |
UV Radiation triggered rail-gap switch
The UV radiation triggered rail-gap switch applies a high voltage from a low impedance source to a low impedance load. The switch includes first and second parallel elongated electrodes spaced to...
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4449076 |
Light isolated pilot light
A pilot light as might be used for monitoring an industrial control circuit having a normal signal circuit connectable to a control circuit element for illuminating a lamp of the pilot light when...
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4431946 |
Positive space-charge closing switch apparatus
A positive space-charge closing switch apparatus for closing electrically the gap between a pair of main electrodes with a positive ion beam that is generated by an ion plasma gun.
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4417217 |
Discharging element energizing circuit for discharge-type fire alarm sensor unit
A discharging element energizing circuit for a discharge-type fire alarm sensor unit including a discharging element, wherein a power supply circuit gives a power voltage to the discharging element...
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4380721 |
Proximity switch
A proximity switch or detector is disclosed herein having an oscillator circuit for establishing a radio frequency field about an antenna so that the presence of an object or agent in close...
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4346330 |
Laser generated high electron density source
Apparatus is disclosed for generating high density pulses of electrons thermionically. The apparatus includes a metallic target maintained within a low pressure cesium vapor atmosphere. A laser...
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4317067 |
Dielectric surface electrical discharge device
A discharge device (10) is disclosed which is capable of providing preionizing ultraviolet wave length photons to the area of a gap between the first (15) and second (35) electrodes of the device....
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4246513 |
Flash lamp discharge using radiant energy
Method and apparatus are disclosed for triggering a flash lamp without the use of a conventional high voltage trigger pulse. In accordance with the invention, gas molecules in the flash lamp are...
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4213062 |
Method and apparatus for prescribing a time of day
The invention relates to electrical apparatus for indicating one or more prescribed times of day which occur between the hours of sunset and sunrise. The apparatus is photosensitive and operates in...
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4185228 |
Electrodeless light source with self-contained excitation source
An electrodeless light source having a termination fixture adapted for connection to a high frequency power source has an electrodeless lamp with a self-contained ultraviolet excitation source and...
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4176297 |
Ultra violet initiated gas discharge visual display matrix
A large area visual display matrix of ultra-violet initiated individual small gas discharge elements. Each element remains in a discharge condition until the voltage applied to a common anode is...
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4162425 |
Ultraviolet detection tube quenching circuitry
Circuitry directed to the rapid de-ionization of ultraviolet detectors by increasing the mobility of the ionized gases within the tubes which will enable the tubes to more effectively operate at...
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4152625 |
Plasma generation and confinement with continuous wave lasers
A method and apparatus for initiating a stable plasma and maintaining the asma stationary. A high power, continuous wave laser is used to initiate and maintain the plasma, while a magnetic trap...
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4063130 |
Low impedance electron-beam controlled discharge switching system
A high voltage switching system switches large load currents in short periods. Gas is contained within an envelope at a pressure of the order of magnitude of at least 0.1 atmosphere. The gas...
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4001632 |
High frequency excited electrodeless light source
A light source includes an electrodeless lamp having an envelope for enclosing a volatile fill material which emits light upon vaporization and excitation, a source of power at a high frequency and...
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3993927 |
Electrodeless light source
A termination fixture for an electrodeless lamp has dimensions which match the output impedance of a coupled high frequency power source to the real impedance of the lamp when in a discharge...
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3980923 |
Photographic flash apparatus with multiple units
Photographic flash apparatus having one flash unit which may be called the main or master or primary flash unit, and one or more additional flash units which may be called secondary or slave or...
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3932742 |
Load-control system responsive to operating condition of producer of intermittent radiation
The operating condition of a producer of intermittent radiation, such as a motion-picture projector or a television receiver, is monitored by a detector circuit including a photoelectric transducer...
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3889144 |
Image intensifier tube
An image intensifier tube comprising a phosphor screen and a photocathode is provided with a wire mesh adjacent the phosphor screen. This provides an equipotential surface and allows the main part...
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3846811 |
FLASH UNIT FOR USE WITH CAMERA
A flash unit for use with a camera includes a DC power supply and a flash lamp or lamps between which a constant current circuit is inserted to maintain the intensity of flash of light produced by...
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3811070 |
LASER INITIATED THREE ELECTRODE TYPE TRIGGERED VACUUM GAP DEVICE
A three electrode triggered vacuum gap device with the triggering mechanism being laser initiated. The triggering mechanism comprises a gas-saturated portion, which when heated by a triggering...
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3792308 |
ELECTROPHORETIC DISPLAY DEVICE OF THE LUMINESCENT TYPE
An electrophoretic display and/or recording device of the luminescent type in which a luminescent electrophoretic suspension layer including a dispersion of at least one electrophoretic material in...
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3633067 |
MAGNETO-OPTICALLY CONTROLLED IONIZATION TUBE
An ion valve has two coaxial electrodes between which is a closed volume filled with pressurized gas through which an electric arc passes. Remote ignition of arc is achieved by means of a laser...
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3526807 |
LASER BEAM FOR TRIGGERING A SPARK GAP AT HIGH RATE
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3524101 |
TRIGGERING DEVICE FOR SPARK-GAP
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3509421 |
PLASMA GAS-FILLED DISPLAY DEVICE
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3504232 |
LASER CONTROLLED SPARK-GAP MEANS FOR A CIRCUIT FOR PROVIDING A MAGNETIC FIELD
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3487261 |
THYRISTOR CIRCUIT WITH OVER-VOLTAGE PROTECTION
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3456154 |
LIGHT IMPEDANCE COUPLING NETWORK
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3454830 |
CONTROL SYSTEM FOR ELECTROLUMINESCENT IMAGE-RETAINING PANEL
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3422307 |
ELECTRIC ARC DEVICE WITH A PHOTOELECTRIC STARTING ELECTRODE
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