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3681606 |
IMAGE INTENSIFIER USING RADIATION SENSITIVE METALLIC SCREEN AND ELECTRON MULTIPLIER TUBES
A radiation image intensifier having a metallic screen such as a lead screen to convert a radiation image into a corresponding electron image in combination with an electron multiplier array for...
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3678328 |
CHANNEL MULTIPLIER ASSEMBLY AND METHOD OF MANUFACTURE THEREOF
A bundle of individual channel multipliers stacked to form a multiplier array, the individual channels being fabricated of a lower temperature softening glass and the bundle being inserted into a...
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3675028 |
IMAGE INTENSIFIER WITH ELECTROLUMINESCENT PHOSPHOR
The subject dealt with herein concerns an intensifier tube which utilizes a channel-type electron multiplier. It is conventional to direct the output of such a multiplier onto an aluminized...
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3675027 |
SYSTEM FOR CONTINUOUSLY VARYING THE SIZE OF THE FIELD OF AN X-RAY IMAGE INTENSIFIER TUBE
A system for continuously varying the size of the field of an X-ray image intensifier tube, wherein the voltages impressed on the electrodes of the tube are so controlled that the size of the field...
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3673457 |
HIGH GAIN STORAGE TARGET
An image conversion device of the type wherein an input photon image is converted to a photoelectron image which creates on a storage target a charge pattern corresponding to the input optical...
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3668396 |
TELEVISION TYPE NUCLEAR RADIATION CAMERA SYSTEM
A television type camera system in which TV type scanning is used for readout of a spatially distributed nuclear radiation image. The scanning system provides means of time integration of the video...
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3666957 |
BRIGHTNESS LIMITER FOR IMAGE INTENSIFIERS
The invention is directed to a system for automatically limiting the output brightness of an image intensifier having a microchannel plate (MCP). The intensifier includes a radiation-sensitive...
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3665191 |
FILTER FOR COMPENSATING EFFICIENCY DIFFERENCES IN AN OPTICAL SYSTEM
A compensating filter for use in a registered position at an optical plane in an optical system having differences in efficiencies such that energy from a uniform source creates light of varying...
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3665184 |
MULTI-COLORED STEREOSCOPIC X-RAY IMAGING AND DISPLAY SYSTEMS
X-ray imaging and display apparatus comprise means for switching an X-ray source sequentially between two or more voltage levels so as to generate X-rays of different energies and a switchable...
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3665247 |
POWER REGULATING MEANS FOR LIGHT AMPLIFIER TUBES
A light amplifier tube having a voltage source and circuit means connected between the cathode and the anode of the tube for regulating the power supplied to the tube and thereby controlling the...
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3665497 |
ELECTRON MULTIPLIER WITH PREAMPLIFIER
A spiraled electron multiplier assembly fabricated of six twisted channels fused into a solid bundle or array, the input section of the electron multiplier being provided with a flared input...
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3663821 |
IMAGE INTENSIFIER DEVICE AND METHOD FOR RECEIVING RADIANT ENERGY IMAGES FOR CONVERSION AND INTENSIFICATION
Image intensifier device and method for image intensification in which a bundle of ionizing radiation containing an intelligence pattern impinges upon a fluorescent layer of an anode luminary...
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3660668 |
IMAGE INTENSIFIER EMPLOYING CHANNEL MULTIPLIER PLATE
A photocathode in response to an incident light image develops a corresponding electron image which is accelerated and focused upon the input of a channel multiplier plate. The input of that plate...
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3652154 |
LIGHT CONTROL SYSTEM FOR USE IN VERY LOW LIGHT INTENSITIES
A high sensitivity light control system for providing relatively constant effective values of light intensity to photographic devices operating in very low levels of light intensity is provided by...
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3641343 |
METHOD AND APPARATUS FOR THE MEASUREMENT OF DURATION OF ULTRASHORT PULSES OF MONOCHROMATIC LIGHT
A method of and apparatus for the measurement of duration of ultrashort pulses of monochromatic polarized light, such as laser pulses. The method comprises splitting the polarized light beam into...
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3641353 |
ELECTRON BEAM BOLOMETER
A bolometer which operates at room temperature and which can be made sensitive to all blackbody radiation in the visible spectrum and extending into the infrared, depending upon the nature of a...
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3641352 |
ELECTRONIC LENS FOR A PHOTOELECTRON MULTIPLIER
An improvement in a crossfield photoelectron multiplier that has a plurality of electron emitting dynodes parallel and longitudinally extended with respect to the anode. The improvement anode has a...
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3641261 |
NIGHT VISION SYSTEM
Night-viewing apparatus for installation on a helicopter comprising two camera heads mounted on the front of the helicopter, and a pair of pivotally mounted mirrors or prisms for each camera head...
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3636366 |
OPTO-ELECTRIC SCREENS PROVIDED WITH LIGHT-CONDUCTING MEMBERS
This invention relates to novel composite photoelectric screens characterized by the construction in which the supporting member for the photoelectric means is radiation transparent and is made of...
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3633478 |
PHOTOGRAPHIC METHOD AND APPARATUS UTILIZING A DIRECT-VIEW-TYPE STORAGE TUBE
A photographing method wherein the distributed image of an object to be photographed is initially stored in the form of a stored charge density pattern on the surface of a direct-view-type storage...
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3634692 |
SCHOTTKY BARRIER LIGHT SENSITIVE STORAGE DEVICE FORMED BY RANDOM METAL PARTICLES
An electronic camera utilizing a solid-state light sensitive storage device comprised of a sheet of semiconductor material having a large number of very small electrically isolated metal spots on...
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3631252 |
IMAGE CONTROL APPARATUS UTILIZING THE CONVOLUTION OF PHOSPHORS
By using the delay time incurred in image reproduction brought about by the convolution action of the phosphor in image converter tubes, time is obtained in which to turn off the reproduction of...
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3631293 |
ELECTRONIC IMAGE TRANSFORMER APPARATUSES
An image-transforming apparatus operating by means of electron radiations includes a first modulator of the electron radiation, a projector for lighting the field of the apparatus, a second...
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3628080 |
FIBER OPTIC OUTPUT FACEPLATE ASSEMBLY SYSTEM
A fiber optic faceplate for an electron tube in which an electron sensitive phosphor is provided on the inner surface of the faceplate and the light image from the phosphor is viewed or coupled...
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3627408 |
ELECTRIC FIELD DEVICE
An electric field sensitive device for providing a visual indication in response to an electric field incorporating liquid crystalline materials of the type exhibiting the cholesteric phase.
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3625122 |
ELECTRONIC PULSE GENERATING AND CONTROL SYSTEM FOR SHUTTERING AN IMAGE INTENSIFIER
An automatic camera shuttering system particularly adapted for aerial photography in that it is continuously operative over a wide range of ambient light levels on a frame-to-frame basis. The scene...
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3624400 |
APPARATUS FOR THE PRODUCTION OF HIGH-RESOLUTION VISIBLE IMAGES OF OBJECTS ILLUMINATED BY OR EMITTING INFRARED RADIATION
High-resolution visible images of objects illuminated by or emitting infrared radiation are obtained by a unique combination of objective lenses and an image-converter tube adapted so that the...
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3622785 |
INTRAORAL MINIMAL RADIATION FLUOROSCOPE
A portable fluoroscopic unit which can be used intraorally or outside the dy. The device comprises an X-ray source which generates a small number of short X-ray pulses, a curved fiber optic bundle...
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3619496 |
TELEVISION BRIGHTNESS CONTROL SYSTEM
A circuit arrangement for providing an output image of constant brightness on the television tube image of a television receiving system over a wide range of illuminations. The system comprises...
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3619622 |
BRIGHTNESS DISTRIBUTION ELECTRON STORAGE TUBE
The tube of the invention is a device which is designed to perform the function of indicating the scene brightness distribution information of an input image in a graphic configuration by utilizing...
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3617743 |
X-RAY IMAGE CONVERTORS UTILIZING LANTHANUM AND GADOLINIUM OXYHALIDE LUMINESCENT MATERIALS ACTIVATED WITH TERBIUM
Oxyhalides of lanthanum and gadolinium, including the oxychlorides, oxybromides, and oxyiodides, activated with terbium and optionally sensitized with cerium are found to be some of the most...
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3612946 |
ELECTRON MULTIPLIER DEVICE USING SEMICONDUCTOR CERAMIC
An electron multiplier device. A solid body of barium titanate semiconducting ceramic is formed into a tube or plurality of tubes and at least two electrodes are positioned at spaced points on the...
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3609433 |
PROXIMITY-FOCUSED IMAGE STORAGE TUBE
A proximity-focused image storage tube having a high-potential readout surface, a passageway structure spaced from the readout surface for transmitting electrons to the readout surface, and a thin,...
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3609359 |
X-RAY IMAGE INTENSIFIER WITH ELECTRON MICHROCHANNELS AND ELECTRON MULTIPLYING MEANS
An apparatus for the amplification of X-ray images which comprises a layered structure which can be adapted to fit in the usual cassette and having an X-ray-sensitive film composition in close...
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3603828 |
X-RAY IMAGE INTENSIFIER TUBE WITH SECONDARY EMISSION MULTIPLIER TUNNELS CONSTRUCTED TO CONFINE THE X-RAYS TO INDIVIDUAL TUNNELS
This invention relates to image intensifiers of multiplier type and which are especially useful for X-ray images. The novel device is characterized by construction in which each of the discrete...
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3603832 |
IMAGE INTENSIFIER WITH CHANNEL-TYPE SECONDARY EMISSION MULTIPLIER
An electronic image intensifier including an electron multiplier. The device comprises a photocathode, a fluorescent screen, and a body between and spaced from the photocathode and screen. The body...
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3596097 |
INFRARED DETECTION AND IMAGING APPARATUS EMPLOYING QUENCHABLE LUMINESCENT PHOSPHORS
Infrared detection and imaging apparatus are disclosed based on the change in the dielectric constant of an infrared quenchable luminescent phosphor (and thus the capacity of a capacitive element)...
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3594576 |
X-RAY FILM HOLDER INCLUDING AN EVACUABLE ALUMINUM ENVELOPE
An X-ray film holder comprising a cover of laminated foil, prepared from an aluminum bag coated on both sides, and of a bottom plate for supporting the X-ray film which is arranged between two...
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3594583 |
ELECTRO-OPTICAL DEVICES FOR DETECTING IMAGES OF INVISIBLE RADIATIONS USING INTERACTION OF LIGHT BEAMS
This invention relates to devices for detecting images of invisible radiations and reproducing them as visible images. These devices are provided with detecting means which upon irradiation by a...
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3594556 |
OPTICAL SIGHT WITH ELECTRONIC IMAGE STABILIZATION
This invention is directed to an electrically augmented sight particularly dapted for use in aerial reconnaissance. The sight locates and fixes the position of an object viewed from the air. A...
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3590254 |
INFRARED IMAGE CONVERTER
An infrared image converter utilizing a flood beam from a cold photocathode source and a solenoidal focus field from a solenoid completely surrounding the entire flood beam; the flood beam being...
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3590304 |
IMAGE INTENSIFIER
The envelope of the image intensifier is principally a glass cylinder closed at one end to support the viewing screen and having a sealing land at the other end with a series of apertures spaced...
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3581098 |
AUTOMATIC BRIGHTNESS CONTROL
The brightness of a phosphor display screen of an image intensifier tube is automatically controlled by a current-limiting device connected between a direct current source and an oscillator which...
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3577205 |
AUTOMATIC IMAGE MOTION STABILIZATION SYSTEM
An image motion stabilization system for use with telescopes, cameras, and the like. An inner casing containing an objective lens and an image converter is mounted within an outer support casing so...
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3577027 |
LOW NOISE IMAGE INTENSIFIER
An image intensifier of otherwise conventional construction is improved by an inwardly directed extension of the envelope, projecting from one edge of the focus electrode and extending toward the...
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3575629 |
MULTIPLE CONDENSING LENS ARRAY FOR CONCENTRATING ENERGY ON A PLURALITY OF ELECTRON BEAM SOURCES OF A PHOTOCATHODE
The invention is an array of condensing lense for use in image tube pattern fabricating applications to provide selective and intensive illuminations of individual electron emitting sources of a...
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3575628 |
TRANSMISSIVE PHOTOCATHODE AND DEVICES UTILIZING THE SAME
Described are transmissive gallium arsenide photocathodes, and optical devices utilizing the same, comprising gallium arsenide epitaxially deposited on a layer of silicon, the gallium arsenide...
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3571602 |
OPTICAL SYSTEM TO REDUCE REFLECTION LOSSES IN A PHOTOCELL
A photodetector system including a photocell of the type having a photosensitive coating on the internal surface of a plane transparent wall forming part of the envelope of the cell. At least one...
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3569763 |
MULTILAYER PHOTOCONDUCTIVE DEVICE HAVING ADJACENT LAYERS OF DIFFERENT SPECTRAL RESPONSE
A photoconductive structure includes first layers of a photoconductive material having one spectral response region and second layers of a different photoconductive material having a different...
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3567947 |
IMAGING SCREEN ASSEMBLY FOR IMAGE INTENSIFIER TUBE
An image intensifier tube having an imaging screen assembly provided with means for preventing particles of imaging screen material and flakes of reflective coating material from being drawn...
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