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7183713 |
Auxiliary coil driver circuit for a cathode ray tube
A magnetic field compensation winding arrangement for a cathode ray tube includes a magnetic field compensation winding positioned on the cathode ray tube to compensate for an ambient magnetic...
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6791269 |
Active photomultiplier tube base
A Photo-Multiplier Tube (PMT) base for supplying long-term stable power, gain control and output amplification to a PMT. The present PMT base integrates the circuitry required for the dynode stages...
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6188178 |
Flat-panel picture display device with spacer means adjacent the display screen
Picture display device having a vacuum envelope with a face plate whose inner side is provided with a luminescent screen having a repetitive pattern of triplets of red, green and blue-luminescing...
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5367222 |
Remote gain control circuit for photomultiplier tubes
A gain control circuit (10) for remotely controlling the gain of a photomultiplier tube (PMT (12)). The remote gain control circuit (10) may be used with a PMT (12) having any selected number of...
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5172069 |
Secondary electron multiplying apparatus
There is disclosed a secondary electron multiplying apparatus including a first channel base for multiplying secondary electrons and a second channel base for inducing an inclined electric field....
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4914351 |
Electron multiplier device having electric field localization
Photomultiplier dynodes (D1, D2 . . . ) each comprise two spaced planes (D11 and D12) made up elementary laminations having a cross-section in the form of an isosceles triangle which is...
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4906897 |
Image intensifier tube
An image intensifier tube comprising an input screen assembly which includes a photosensitive semiconductor wafer having a substrate of one conductivity type material forming a plurality of P-N...
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4902930 |
Electron image projector
An electron image projector for transferring mask patterns onto a semiconductor wafer comprises a patterned photo-emissive cathode mask (1) and a target (3) such as a semiconductor wafer (11)...
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4763043 |
P-N junction semiconductor secondary emission cathode and tube
A crossed-field amplifier has a cathode in the form of a P-N junction semiconductor which is biased to the conductive state to cause the crossed-field amplifier to amplify. The P and N regions of...
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4704635 |
Large capacity, large area video imaging sensor
Deleterious effects of high capacitance in large area raster scanner image tubes, especially when employed in video cameras, can be overcome by employing the following features: (1) a plurality of...
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4677341 |
Synchronous scan streaking device
A synchronous scan streaking device comprising a photoelectric layer, an electronic lens, an anode with an aperture, a pair of deflection electrodes, and a phosphor layer arranged in order within a...
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4626900 |
Color video signal reproducing circuit for index type television utilizing vertical correlation of index signals and 360° phase detection and adjustment circuits
A color video signal reproducing circuit for an index type television including a phase detector and a phase adjusting circuit in which the phase detector detects the phase difference between an...
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4612483 |
Penetron color display tube with channel plate electron multiplier
A penetron color display tube including a channel plate electron multiplier disposed between a low energy electron-beam-producing means and a luminescent screen. The screen is formed from...
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4423354 |
Method and apparatus for controlling electrode voltage in electron beam tubes
A controlling electrode is positioned in physical proximity to one or more electrodes in an electron beam tube so that the controlling and controlled electrodes are subject to common electron...
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4314179 |
Horizontal scanning rate correction apparatus
A horizontal scanning rate correction apparatus for a cathode-ray tube, particularly of the beam index color cathode-ray tube type, includes a memory for storing correction values representing...
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4275355 |
Direct view storage tube having improved readout performance
A flood gun assembly for use in a cathode ray storage tube for uniformly distributing flood electrons over the surface of a storage target includes a mounting member for mounting the flood assembly...
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4231060 |
Color-pulling compensation in a beam-index display tube
A system and method for varying the phase of an index-related control signal produced within a beam-index display system in a manner compensating for the effects of cross-modulating the index...
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4197487 |
Beam-index tube apparatus having deflection field correcting elements
A beam-index tube apparatus comprising a beam-index picture tube provided with an electron gun to generate an electron beam of an oval cross-section, a deflecting device having a deflecting yoke...
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4184069 |
Orthogonal array faceplate wafer tube display
Minature video-type display comprised of an otherwise normal microchannel ate (MCP) image intensifier wafer tube which uses, instead of the normal input faceplate having a uniform photocathode, a...
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4160194 |
System and method for keying video information to electron beam deflection
In an image display, the video information may be keyed to the position of the electron beam by sensing the beam deflection voltage. A keying system utilizes means for generating a reference...
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4109178 |
Electron multiplier with switchable beam confinement structure
An electron multiplier includes a plurality of staggered parallel dynodes. The dynodes include spaced confinement bumps along their lengths with active multiplying areas between the bumps. The...
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4044249 |
Voltage supply including bilateral attenuator
The specification discloses a voltage supply system particularly adapted for use as an automatic brightness control for an image intensifier tube. The system includes a power oscillator for...
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4041343 |
Electron multiplier mosaic
1. An electron multiplier mosaic structure comprising: A plurality of alternate layers of uniform metallic and insulating material; An intermediate coating of metallic bonding material joining each...
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4020376 |
Miniature flat panel two microchannel plate picture element array image intensifier tube
A miniature flat panel image intensifier tube display device using two inne microchannel plate (MCP) electron multipliers that have two arrays of orthogonally positioned electrically isolated...
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4004182 |
Operation of storage tubes having secondary electron emissive targets
A method of operating a storage tube having a secondary electron emissive storage target includes applying selected bias voltages to the target during the writing and erasure steps to control the...
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3988611 |
Direct voltage power supply apparatus
A direct current power supply circuit for a photomultiplier tube comprises a step-up transformer with a secondary winding connected to rectifier means feeding output terminals. The primary winding...
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3984724 |
Method of operating a storage tube
An erasing process is accomplished by scanning a target with an unmodulated electron beam under the condition of secondary electron emission ratio of the target (δ) above a unit value. Then a ...
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3979635 |
Charged particle beam scanning device
A plurality of control plates are sandwiched between a cathode and a target to control the flow of charged particles such as electrons and ions between the cathode and the target. Each control...
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3979636 |
Charged particle beam scanning device
A plurality of control plates is sandwiched between a cathode and a target to control the flow of charged particles such as electrons and ions between the cathode and the target. The cathode...
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3979637 |
Microchannel plates and method of making same
Microchannel electron-multiplying plates formed of large numbers of glass-clad glass fibers all bundled tightly together in side-by-side relationship with each other and having their core sections...
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3955117 |
Optical pulse demodulator
A fast scanning optical cathode ray tube with an array of electron multiplier output channels across the sweep path provides demodulation of short pulse code modulated optical signals. The cathode...
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3950669 |
Erasing method for storage tube employing raster scan
The time duration of an erasing cycle is shortened and "raster burn" is reduced by first applying potentials which result in a substantially uniform charge over the storage surface by means of...
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RE28773 |
Charge image storage method and apparatus
The information stored on the dielectric target of a bistable storage tube is read out nondestructively employing a pulsed electron beam. The electron beam is turned on for a period having a...
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3949264 |
Electronic storage tube target structure and method of operation
An electronic storage tube of the electron beam modulated type employing a target structure of the "coplanar grid" type in which the coplanar grid is a multilayered structure having at least one...
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3946268 |
Field emission gun improvement
A field emission gun for use in an instrument such as an electron microscope including the field emission tip, an extraction electrode and focusing and accelerating anode means wherein there is...
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3938386 |
Method and apparatus for monitoring temperatures during catalytic regeneration from a continuously moving infrared scanning and detection unit fixedly mounted aboard an aircraft
Careful and accurate indication of regeneration temperatures of catalysts associated with the refining of hydrocarbons such as occurring in catalyst-aided hydrocracking and catalyst-aided reforming...
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3939378 |
Storage cathode ray tube having auxiliary coils to correct non-symmetrical geometry
A storage cathode-ray-tube having a single off-axis flood gun is described including auxiliary coils defining electromagnets placed, one electromagnet on either side of the cathode-ray-tube to...
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3935493 |
Radiation detector using double amplification
In a radiation detector two photocathodes are provided one on either side of a channel amplifier plate. One of these photocathodes is provided, so as to be electrically floating, on a layer of a...
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3934170 |
Image tube and method and apparatus for gating same
In an image tube, a photocathode is disposed to receive a photon image for emitting into the tube a corresponding electron image which is accelerated by an accelerating anode and focused upon an...
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3925702 |
Method and apparatus for improving the readout characteristics of electronic storage tubes
A method and apparatus for improving the readout characteristics of electronic storage tubes utilizing a stored potential pattern wherein a periodic varying voltage is applied to either the cathode...
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3919587 |
Electronic storage tube
An electronic storage tube having a target which is composed of an insulating layer having an electrode on each surface thereof. One of the electrodes is overlaid on one of the surfaces of the...
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3904923 |
Cathodo-luminescent display panel
This disclosure depicts cathodo-luminescent devices and luminescent panels employing X-Y matrices of such devices as the display elements. The cathodo-luminescent devices are depicted as each...
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3885180 |
Microchannel imaging display device
A display device using a microchannel plate electron multiplier with a set of fine, closely spaced, parallel continuous metallic lines deposited on each side of the microchannel plate with each set...
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3875457 |
Field responsive photoluminescent display devices
Improved image storage and display devices of the type which includes a layer of phosphor material which is stimulated to emit light through photoluminescence. The intensity of emitted light is...
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3868536 |
Image intensifier tube employing a microchannel electron multiplier
In an image intensifier tube, photon images received by a photocathode are converted into electron images which are accelerated by an accelerating anode and focused upon the input face of a...
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3864595 |
AUTOMATIC BRIGHTNESS CONTROL FOR GATED MICRO-CHANNEL PLATE INTENSIFIER
An image intensifier tube is described as including a photocathode element for converting an incident radiation image into a corresponding electron image, a micro-channel plate for multiplying the...
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3863093 |
MULTICOLOR DIRECT VIEW DEVICE
The invention includes an image converter or image intensifier for night reconnaissance in military applications or the like. It is a feature of the invention that a multicolored picture is...
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3863094 |
IMAGE INTENSIFIER AND METHOD OF MAKING AN ELECTRON MULTIPLIER THEREFOR
The invention includes a channel-type electron multiplier incorporating a glass plate having holes therethrough. The plate is treated so that the holes will support secondary emission. When primary...
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3855497 |
DUAL BIAS CONTROLLED STORAGE TUBES
In response to the application of a predetermined signal, the bias on the control grid of a storage tube is altered to switch its electron scanning beam from a substantially unblanked condition to...
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3851205 |
JUNCTION TARGET MONOSCOPE
A signal display system having a visual display and a display signal generator in which a semiconductor junction target has a high conductivity P layer, a low conductivity N layer, and a surface...
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