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4728804 |
Scanning system with low sampling rate
A scanning infrared sensor scans an array of detector elements across a field of view and samples the detector elements at a predetermined rate. The detector elements are sampled with a common...
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4724482 |
Infrared thermography system with sensitivity improved by progressive accumulation of image lines
A thermography system comprising an infrared camera with line and raster scanners and at least one photosensitive detector, an electronic digital signal processor, and means for the visualization...
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4717830 |
Correlated sampling amplifier
An infrared imaging system includes a scanner of infrared radiation emanating from a subject, the radiation being scanned past an array of radiation detectors disposed on a common substrate. A set...
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4717952 |
Medical television system
A medical television system includes a television camera and a selector. The television camera includes a filter for separating visible light into three wavelength regions and transmitting...
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4716469 |
Circuit for eyesight protection in a television set
This disclosure depicts a circuit for protecting eyesight from the screen of a TV set. A infrared transmitter is provided on a side of the front of the TV set so that pulse signals therefrom are...
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4712010 |
Radiator scanning with image enhancement and noise reduction
An imaging system incorporating a scanned array of infrared detectors for presentation of scene data on a display includes gain normalization circuitry coupled to individual ones of the detectors...
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4707736 |
Self alignment device for an optical infrared image observation system
A self-alignment device is provided for an optical infrared image observation system having essentially an input optical system, and infrared reading system, as well as a return mirror in a given...
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4695881 |
Apparatus for imaging infrared emitting surfaces
Infrared emitting surfaces such as a smelt bed in a Kraftchemical recovery boiler can be monitored by a closed circuit infrared camera equipped with a 1.5 micrometer edge filter. The camera power...
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4694333 |
Photoelectric receiver with local brightness adaptation
A photoelectric receiver for picture recording equipment, particularly for thermal-image equipment having local brightness adaptation, comprises at least one first detector element for providing...
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4687344 |
Imaging pyrometer
An imaging radiometer for high temperature measurements has a sensor head comprised of a solid-state video camera operated in fixed gain mode, preferably one with a charge injection device...
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4687933 |
Optical and mechanical scanning device
An optical and mechanical scanner including a device for scanning a field of vision to detect and recognize with high resolution distant objects in the field of vision. Scanning is accomplished in...
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4684812 |
Switching circuit for a detector array
An infrared imager, wherein a transparent gate is separated from a very narrow bandgap semiconductor (such as HgCdTe) by a thin dielectric. The gate is biased to create a depletion well in a...
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4682222 |
Stimulated scanning infrared imaging system
A scanning infrared display system capable of variable magnification and high spatial resolution measures the emitted infrared radiation caused by the scanning of a highly collimated energy source...
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4682236 |
Read and clear readout circuit and method of operation of an IR sensing charge injection device
The invention relates to a read and clear readout circuit and a method of operation of an IR sensing array. The invention eliminates "readout circuit lag" which reduces transient response for an...
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4674826 |
Optico-mechanical scanning device
The invention relates to a device for optically scanning a field of vision divided into different regions and for displaying the field, scanning being done in two perpendicular directions, i.e....
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4671674 |
Process for the detection and recording of weak points or defects on hot iron and steel industry semifinished products
The present invention relates to a process for the detection and recording of the weak points or defects on hot semifinished iron and steel industry products, by application of the flame of an...
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4672439 |
FLIR imager with hybrid optical/electronic processor
A FLIR imager is modified to include a hybrid optical/electronic processor for automatic local area dynamic range normalization. FLIR imagers have an objective lens for focusing IR energy emanating...
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4670654 |
Thermal image sensor with means for converting a phase image into an insity modulated image
A thermal image is created in a thermostatically controlled liquid crystal cell (4) containing a two-frequency nematic or cholesteric (3). This is addressed with an alternating potential whose...
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4668866 |
Method of using FLIR for motion analysis
A method is provided for recording the motions of a subject while exercising or otherwise engaged in physical activity. A far-infrared detection system is used to record the movements of key...
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4656508 |
Measuring endoscope
A measuring endoscope for making three-dimensional measurements of a object without using a special lattice and without hampering direct observation of the object. The measuring endoscope includes...
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4652766 |
Direct coupled charge injection readout circuit and readout method for an IR sensing charge injection device
The invention relates to an improved readout circuit and readout method for an IR sensing array. The invention, given a limited time interval for reading out the signal from a sensor element in an...
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4644407 |
Display systems
A display arrangement particularly suitable for displaying video signals representing a thermal image. Successive horizontal lines of a television raster pattern are offset, or staggered, by a...
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4641182 |
Systems and components for detecting electromagnetic radiation and displaying images produced thereby
There is provided a system for detecting electromagnetic radiation and displaying images produced thereby. The system comprises an imaging device in a first housing, a first rotatable base element...
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4635125 |
Real-time light-measuring system for single-lens reflex cameras
A light-measuring system for single-lens reflex cameras wherein the light coming from an object to be photographed as reflected at the image-pickup surface is reflected once again by a partially...
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4626905 |
Panoramic view apparatus
A panoramic view apparatus comprising a tube, a lookout mirror supported in the tube and movable in elevation and azimuth, and a closure window that is at least bispectrally transparent. In the...
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4620231 |
CCD imager with photodetector bias introduced via the CCD register
An infrared charge-coupled-device (IR-CCD) imager uses an array of Schottky-barrier diodes (SBD's) as photosensing elements and uses a charge-coupled-device (CCD) for arranging charge samples...
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4618892 |
Dynamic shading compensation for IR tracking system
A circuit which compensates for display shading in a FLIR infrared tracking system utilizes (1) a triangular signal corresponding to scanner motion and (2) a parabolic signal derived as the...
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4617593 |
Visible and near infrared imaging system
An improved visible and near infrared imaging system, in a first embodiment, has an optical system, chopper, improved detector, improved first and second delta frames, display, and timing and...
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4613898 |
Imaging systems
An imaging system (10) comprises an imaging data-collection station (11) having a camera (15) with a field of view (16) mounted on platform (13) rotatable about azimuthal axis (14). Collected image...
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4609824 |
Photosensitive device for the infrared range
A photosensitive device for the infrared range wherein each detector is connected to a first and a second MOS transistor. The second MOS transistors are addressed, column by column, by a first...
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4609943 |
Device photosensitive to infra-red radiation
In a device photosensitive to infra-red radiation each infra-red detector is associated with means enabling the injection into a semiconductor substrate of a quantity of charges representing a...
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4608598 |
Thermal imaging apparatus
A plurality of thermal images of an observed object at different times are simultaneously displayed on a single screen of a television monitor simply and economically. The thermal imaging apparatus...
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4608599 |
Infrared image pickup image
In an infrared image pickup device, an infrared image signal and a visible image signal are picked up from an object to be photographed, the infrared signal, the visible image signal and/or a...
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4608597 |
Method for the surveyance of an object space
In order to clearly reveal modifications, even small alterations occurring in a controlled object space (1), the thermal infrared radiation of the object space (1) is represented by means of an...
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4583814 |
Infra-red optical systems
The system relates to a telescope having optics and a scanning head which images a two-dimensional field of view point by point onto a localized thermal sensor. An aperture stop is mounted within...
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4576432 |
Aiming or sighting apparatus with synchronously rotating thermal imager and aiming head
An aiming apparatus, for example, for aiming at a target, has an aiming h (11), an ocular unit (13) and a display section (22) between the aiming head and the ocular unit. The display section (22)...
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4577223 |
Synthetic d.c. restoration of a.c. coupled signals
First and second signals are selected from a plurality of sequentially fed, a.c. coupled signals. A difference signal which is the difference between the first and second signal is generated. The...
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4574197 |
Dual field of view sensor
A dual field of view sensor, particularly adapted for use as a forward-looking infrared night vision detector, includes a single detector (24) for receiving a light signal and developing an output...
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4530010 |
Dynamic infrared scene projector
A dynamic infrared scene projector for presenting cinematic, two-dimensional, spatially distributed scene data to an infrared sensor is provided comprising programmable, thermoptic infrared...
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4524386 |
Thermal target display system
A thermal target display system and method is disclosed by which thermal radiation patterns simulating the thermal "signature" of selected "real-scene" objects such as vehicles, buidings, and...
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4524385 |
Predetection processing of optical information
An optical processing system for processing infrared information prior to detection. In one embodiment, optical information from an infrared scene is focused by optics (10) onto a thermoptic...
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4520390 |
Burner monitoring system
A burner monitoring system in which an array of burners are viewed by a video camera adapted to produce a video signal representing the infrared image of the burner array. The video processing...
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4516158 |
Ground reconnaissance
Ground reconnaissance equipment for an air or spacecraft comprising two line-scanners, for example infra-red sensitive scanners, operable for scanning respective ground areas along lines extending...
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4501966 |
Infrared microscope inspection apparatus
Apparatus and system for inspecting infrared transparents, such as an array of photovoltaic modules containing silicon solar cells, includes an infrared microscope, at least three sources of...
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4495518 |
Infrared test for wooden utility poles for structural soundness
A method for testing wooden utility poles for structural soundness, which quickly indicates usual structural conditions which make the pole unsound, such as rot, porosity and internal cavities,...
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4491867 |
Device for the heterodyne detection of an optical image
A device for the heterodyne detection of the image of targets illuminated by a laser, wherein the target reflects a wave Σ 1 , which is amplified in an included refractive index variation medium...
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4477834 |
Scan conversion circuit
A scan conversion circuit for a thermal imager device in which a field is scanned by a parallel-series array of infra-red detectors swept broadside over the field to produce a band of parallel I.R....
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4471378 |
Light and particle image intensifier
A light and charged particle image intensifier receives incident image conveying light or charged particles ("incident beam") and provides to data processing and video equipment signals from which...
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4463437 |
Furnace burden thermographic method and apparatus
Improved infrared camera system better enables furnace burden surface temperature measurements and temperature profile measurements and displays of such measurements to be made at various...
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4429330 |
Infrared matrix using transfer gates
An infrared random access imager system is disclosed which includes a scanning mechanism, a random access imager detector matrix, and a video signal processor. The scanning mechanism scans the...
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