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3997780 |
Labeled container orientation sensing system
A non-interlaced video camera has twenty four light pipes orthogonally terminated at its field of view, each light pipe having a lens at its distal end focused at a spot on one of a plurality of...
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3987299 |
Method and apparatus for forming color images using an image intensifier tube
The radiation spectrum from a scene is split according to two wavelength regions to provide two spaced images of the same scene, each from the radiation of a different one of said regions, on the...
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3984728 |
Image intensifier tube gating circuit
A gating circuit for use with an image intensifier tube which allows the e to be turned on and off without producing residual image distortions, and when the tube is off eliminates scintillations...
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3980880 |
Automatic exposure control circuit for an image intensifier camera
This invention relates to automatic exposure control for an image-intensiation photographic camera through the employment of a capacitor discharge circuit. The electrical energy stored in a...
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3976874 |
Image tube incorporating a brightness-dependent power supply
The invention relates to a noctoviser comprising an image intensifier tube and a cascade high-voltage generator in which the intensifier tube is connected to the output of the high voltage...
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3974376 |
Light amplifier for obtaining intensified light image from photoemissive surface
This disclosure concerns a light amplification apparatus for focusing a light image of an object being viewed by the apparatus on a photoemissive surface which then emits a pattern of electrons...
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3974331 |
Low light level image pick-up tube arrangement
A low light level image pick-up tube is protected from excessive illumination intensity damage by controlling a very high voltage assembly supplying the tube. The tube comprises in a preferred...
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3971933 |
Quick disconnect for night vision optics
The invention provides a quick disconnect device for use between image insifier tubes and their power supply or their supporting apparatus.
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3971931 |
Led image tube light valve
A projection display for producing a bright image of pictorial quality from a large time bandwidth video signal produced by a plurality of light emitting diodes (LED's).
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3971932 |
Apparatus for enhancing the long wavelength response of photodetectors
A photodetection device includes a photosensor usefully responsive to electromagnetic energy of a first band of wavelengths. An energy conversion unit is optically coupled to the photosensor for...
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3967123 |
Coupling two optical windows
For coupling optical windows, in particular two fiberoptics windows, a diaphragm construction is used. This ensures a homogeneous pressure distribution over the window areas and prevents sliding or...
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3961182 |
Pick up screens for X-ray image intensifier tubes employing evaporated activated scintillator layer
The present invention relates in general to methods for making pick-up screens for X-ray image intensifier tubes and, more particularly, to an improved method wherein the X-ray fluorescent phosphor...
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3955084 |
Electro-optical detector for use in a wide mass range mass spectrometer
An electro-optical detector is disclosed for use in a wide mass range mass spectrometer (MS), in the latter the focal plane is at or very near the exit end of the magnetic analyzer, so that a...
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RE28751 |
X- and gamma-ray sensitive image intensification tube
The invention relates to an X- and Gamma-ray sensitive image intensification tube for use in a so-called gamma camera or the like, which tube preferably has a single crystal input phosphor.
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3944817 |
Optical intensity adjustment devices
An optical intensity adjustment device for adjusting the intensity of optical radiation incident thereon includes a first transparent conducting electrode, a second transparent conducting...
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3941999 |
Automatic focus pulse gated system
An improved active type of infrared viewing system is provided using pulse ated techniques which displays the complete Z (range) axis simultaneously and provides uniform image intensity at all ranges.
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3940620 |
Electrostatic recording of X-ray images
A device for the electrostatic recording of X-ray images comprises two spaced electrodes with a gas-filled gap therebetween. One of the electrodes comprises a layer of an ultraviolet emitting...
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3937964 |
Scintillation camera with second order resolution
A scintillation camera for use in radioisotope imaging to determine the concentration of radionuclides in a two-dimensional area in which means is provided for second order positional resolution....
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3936687 |
Photocathode with plurality of concentric conducting rings
A flat large-area photocathode intended for use in an intensifier tube is constructed so that a pre-determined potential gradient can be maintained across its surface in operation in order to...
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3928768 |
Thermal imaging tube having a pyroelectric target and annular potential stabilizing electrode
A pyroelectric vidicon having an annular metal electrode on the beam side of the target for maintaining the perimeter of the target at a fixed potential.
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3922576 |
Image integration and transfer plate
A semiconductor plate receives an electron image on a first side, thereof. or an electronically controlled time, the image is integrated and stored in thousands of reversed biased PN junctions...
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3917402 |
Method and apparatus for collating patterns
A method and apparatus to collating patterns, which is capable of detecting non-overlapping portions of two or more patterns. The apparatus comprises a channel plate having a recovery time...
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3917950 |
Fluoroscopic screen which is optically homogeneous
A high efficiency fluoroscopic screen for X-ray examination consists of an optically homogeneous crystal plate of fluorescent material such as activated cesium iodide, supported on a transparent...
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3914600 |
Electron image integration intensifier tube
An optical or photon image is converted by a photocathode to an electron ge. A semiconductor plate receives the electron image on a first side thereof. For an electronically controlled time, the...
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3912371 |
Integration flash transfer plate
An electron image falls upon a first side of a semiconductor plate. For an lectronically controlled time, the image is integrated and stored in thousands of microsized conductors, in the plate. A...
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3906234 |
Gamma camera
A gamma camera which obviates the distortion of locating signals generally caused by the varied light conductive capacities of the light conductors in that the flow of light through each light...
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3903451 |
Gating network for image intensifier
An electronic analog gating means for an image intensifier in which transted pulsed illumination that is returned from targets down range are gated through the image intensifier in an analog manner...
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3898452 |
Electron multiplier gain stabilization
The gain of an electron multiplier is proportional to the ratio of the mean square output noise current with respect to the direct current at the anode. This ratio is compared with a reference...
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3896331 |
Electron optical system
An electrostatic focus system, particularly suitable for electron optical image tubes includes a photocathode which provides a source of electrons corresponding to an input image. The electrons are...
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3894231 |
Image converter or intensifier device
An image converter or intensifier device comprising a flat photocathode which enables the convergence of the photoelectron beam. The photocathode comprises a conductive layer made up of filiform...
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3890506 |
Fast response time image tube camera
A semiconductor dual-axis positon sensor is connected inside, and at the output end, of a sealed, evacuated housing which contains a photocathode film at the input end thereof in optical...
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3887810 |
Photon-multiplier imaging system
A photo-imaging system having substantially increased sensitivity is described. Impinging photons are focused upon a photo-emissive cathode of an electron accelerating tube. The cathode comprises a...
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3885178 |
Photomultiplier tube having impact ionization diode collector
A photomultiplier tube (PMT) converts a received light signal to an output electrical signal of substantially greater intensity by employing a photocathode to convert incident light to free...
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3882454 |
Methods of differentiating images and of recognizing shapes and characters, utilizing an optical image relay
The differentiation of an image is achieved by utilizing an optical relay, comprising a plate of an electrooptic material which is brought to a temperature approximating its Curie point, and which...
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3881104 |
Storing optical relay for converting x-ray images which comprises an electro-optic material
The invention relates to an arrangement for converting X-ray images into images of a given spectrum. The X-ray image, which is projected on a photosensitive layer and converted into an image of...
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3872302 |
Image intensifier system with reticle brightness control
An image intensifier system which amplifies and displays both an object image and a reticle image has a unique reticle brightness control for regulating the brightness of the reticle image. The...
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3870921 |
Image intensifier tube with improved photoemitter surface
An image intensifier tube in which the efficiency and wavelength span of the photoemitter are increased by providing on a light transmissive surface a thin film of a Group II-VI compound...
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3864037 |
Imaging spectroscopic method and apparatus
A spectroscopic method and apparatus by which light energy emanating from an object or scene under observation is transmitted through a narrow band pass filter to produce an attenuated image of...
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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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3857035 |
INFRARED VIDICON WITH OFF-AXIS ELECTRON GUN
An infrared camera tube uses an electron beam to scan its photoconductive sensitive surface and produce an output. In order to avoid background current which might be produced by the thermonic...
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3848123 |
AUTOMATIC BRIGHTNESS CONTROL FOR IMAGE INTENSIFIER TUBE
The brightness of an output display screen of an image intensifier tube is automatically controlled by a current-limiting means connected between a direct current source and an oscillator. The...
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3846654 |
VACUUM IMAGE CONVERTER
A vacuum image converter has a vacuum flask containing an electrode device for reproducing an electron ray bundle released at the cathode upon an anode separated from the cathode. The converter is...
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3845296 |
PHOTOSENSITIVE JUNCTION CONTROLLED ELECTRON EMITTER
A sandwich structure of photosensitive junctions in series with a mosaic of hotoemitters. An external grid is positioned adjacent the mosaic of photoemitters and has the high voltage side of a step...
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3839634 |
IMAGE INTENSIFIER DENSITOMETER
An image intensifier densitometer is provided with a collimator which is composed of laminations. The length-to-distance relationship of the laminations determines the shape and the proportions of...
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3838273 |
X-RAY IMAGE INTENSIFIER INPUT
A barrier layer of an electrically conductive material such as indium oxide (In 2 O 3 ), optically transparent to x-ray phosphor luminescence, is disposed between the phosphor layer and...
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3835314 |
INTENSIFIER RADIOGRAPHIC IMAGING SYSTEM
An intensified radiographic imaging system comprised of an image intensifier tube including an input screen assembly having means for converting an incident X-ray image into an electron image, an...
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3828187 |
COHERENT-OPTICAL IMAGE CONVERTER
An image converter tube for direct time conversion of an incoherent image into a coherent image with a photo cathode, an electron optic and a transparent planar anode which is arranged on a viewing...
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3816744 |
FAST RESPONSE AUTOMATIC BRIGHTNESS CONTROL CIRCUIT FOR SECOND GENERATION IMAGE INTENSIFIER TUBE
A fast response automatic bright source protection circuit for an image insifier tube in which the amount of screen current, which is produced according to the light intensity of a target source,...
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3813489 |
LOW LIGHT TELEVISION CAMERA
The phosphor screen of an image intensifier fiber-optically coupled to the target of a television camera tube is connected to a point in the video amplifier which provides a signal to decouple the...
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