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4073985 Composite dome  
A dome for protecting energy responsive instrumentation in a missile is disclosed which utilizes a plurality of wedge shaped transparent elements mounted in a polymer matrix. The transparent...
4063096 Self-protecting infrared detector with a continuously variable attenuator  
An instrument for protecting sensitive infrared detectors, such as those d in satellites, from being damaged by exposure to high intensity radiation. The high intensity radiation may come from a...
4063093 Infrared vidicon system  
An infrared vidicon system having capacitive type target elements is provided with a means for modulating the target scene with a duty cycle of less than 50% and the reading of the target scene in...
4058726 Radiation detector  
A radiation detector for simultaneously detecting electromagnetic radiation from a number of separate receiving regions by means of a single radiation receiver. Optical bundling means are arranged...
4044251 Electromagnetic radiation detector with large area sensing medium  
A sensing device is provided for the detection of electromagnetic radiation through the use of a large area pyroelectric/piezoelectric sensing medium. The detection operation of the sensing device...
4040744 Multiple spectrum co-axial optical sight and closed loop gun control system  
A sight system for providing closed-loop differential tracking control over gun aiming, utilizing visual and non-visual optical radiation to assist the gunner in acquiring and destroying targets...
4035654 Optical alignment sensor  
Method and apparatus for determining the accurate alignment of an intense optical beam wherein the beam is passed through a preselected region of an optical transmission element which absorbs a...
4027159 Combined use of visible and near-IR imaging systems with far-IR detector system  
A light-weight, night vision system which combines a reflected-light, imag device with an audio-monitored, far infrared detection device (HANSAM) for detecting long wavelength infrared radiation...
4023201 Infrared thermography for determining equipment temperatures in oil well fires  
Infrared thermography is applied to the determination of the temperatures of equipment engulfed in an oil well fire. Operation is similar to a television camera in that the radiant flux from the...
4020344 Mobile infrared apparatus for mapping thermal variations and method employing same  
Heat loss is detected by means of an infrared scanner mounted on a wheeled vehicle that moves along a horizontal path. The scanner is arranged to view a thermal scene along vertical scan lines...
4015128 Device for and method of controlling the level in appropriate containers of a liquid which will emit infra-red rays and, in particular, the level of molten metal  
A device for controlling the level in a container of a liquid which will emit infra-red rays and particularly molten metal is described. The device comprises a housing, at least one longitudinal...
4009393 Dual spectral range target tracking seeker  
In a missile, a target tracking seeker responsive to a dual spectral range of radiation, having two decentered rotating optical elements to provide a rosette or spiral scanning pattern for a dual...
4009392 Radiation focus meter  
A system for determining the focus point of a high power radiation beam.
4008395 Flexible tube section for gimballed IR detectors  
A flexible tube section for supplying coolant to infrared (IR) detectors nted in a gimballed system. The tube section is comprised of a plurality of coils and lever arms for supplying coolant to...
3998616 Manufacture of flat glass having controlled width and nip width  
Apparatuses for attenuating a body of hot glass moving over a body of molten metal are each provided with a nip sensing device, a linear movement monitoring device and an angular movement...
3999069 Pyroelectric temperature compensated sensing device employing differential amplifier  
A temperature compensated sensing device for sensing a particular condition includes first and second conductive layers in surface-to-surface contact with and separated by a layer of poled,...
RE29082 Intrusion detector  
A simple optical system collects and applies radiation from a predetermined field of view onto a thermopile detector. The thermopile detector has a plurality of rows of thermocouples having all...
3992629 Telescope cluster  
Broad, intermediate, and narrow field of view infrared telescopes, broad and narrow field of view visual telescopes, and a narrow field of view laser telescope, together with apparatus for...
3974383 Missile tracking and guidance system  
A missile guidance system is disclosed which utilizes one optical system for visually tracking a target and directing a missile thereto by means of infrared (IR) energy emitted from the missile....
3971939 Unitary lasser/IR seeker  
A combination of a wobble-scan infrared (IR) seeker with an unscanned pul laser (L) seeker. Target IR&L energy is passed through a focusing lens system to a wedge filter which is mounted on a...
3944167 Radiation detection apparatus  
A radiation sensor including an inner detector surrounded by an array of outer detectors is employed in radiation tracking apparatus which is capable of tracking a true target in a field of...
3943360 Radiant energy pulse detector  
Pulse detection apparatus for optical signal pulses including ultra-violet and infra-red frequencies. A photoconductive detector cell has four ohmic output electrode terminals disposed in a...
3942008 Thermal imaging device  
A unique imaging device operating in the far infrared is provided by utilng fiber optic techniques. The system is used to improve the performance of photoconductive and thermoresistive type retinas.
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...
3933044 Method and apparatus for monitoring temperatures during catalytic regeneration  
Careful and accurate indication of regeneration temperatures of catalysts associated with the refining of hydrocarbons such as occur in catalyst-aided hydrocracking and catalyst-aided reforming...
3930159 Device for measuring the cooling time of welds  
A thermocouple is longitudinally slidable in the barrel of a holder in the form of a pistol. The thermocouple is projected partially from the end of the barrel when a photo-electric cell carried...
3928843 Dual channel infrared intrusion alarm system  
An infrared intrusion alarm system utilizes two sensing elements and two signal processing channels arranged such that an intruder produces signals of opposite polarities in the two channels. An...
3924130 Body exposure indicator  
An infra-red detector is caused to scan a field of view periodically to dct warm bodied intruders or other personnel. Signals from the detector are compared with signals from a scene recorder...
3902067 Radiometric apparatus  
In the radiometric apparatus disclosed herein, energy from a reference source is chopped out-of-phase with energy from the target, the reference source being energized by a servo loop in a null...
3896311 Pyroelectric motion and temperature sensitive infrared detector with conductive fingers  
A passive motion and temperature sensitive infrared radiation detector includes a housing with a front wall having a plurality of laterally spaced apart apertures that are filled with a radiation...
3891847 Method and apparatus for controlling the addition of a combustion assisting fluid to a flare  
A method and apparatus for controlling the flow of a combustion assisting fluid to a flare stack by detecting the radiation emitted by the flare and using the resulting signal to control the flow.
3886359 Time interval compression address sequentially  
An infrared scanning system in which a columnar array of infrared sensors cyclically sweeps a scene in successive frame intervals to produce repetitive sets of time-amplitude-variable signals...
3865037 PYROTECHNICAL COMPOSITION STATIC RELAYS  
A static electrical relay comprising first and second thermally coupled elements of pyrotechnical composition. The first element is initially electrically insulating and becomes conductive upon...
3866037 OPTICAL SYSTEMS AND ASSOCIATED DETECTING MEANS  
1. An opaque main supporting housing and a light-collecting and detecting system disposed within said supporting housing and intermediate the spaced opposite ends thereof, said housing surrounding...
3861458 MULTI-HEAD INFRA-RED RAY DETECTOR  
An arrangement by which "hot-spots" or developing fires in apparatus having a matrix therein are detected before the high temperatures resulting therefrom are permitted to impair the integrity of...
3848129 SPECTRAL DISCRIMINATING RADIATION DETECTION APPARATUS  
Radiation detection apparatus which is capable of discriminating between radiations having different spectral characteristics such as between an aircraft or missile and a cloud or a flare. A...
3839640 DIFFERENTIAL PYROELECTRIC SENSOR  
A low cost mass produced intrusion detection device which responds to a temperature difference between ambient temperature and the body temperature of an intruder who is moving past the sensor....
3829693 DUAL FIELD OF VIEW INTRUSION DETECTOR  
An intrusion detector for detecting movement of bodies radiating in the infrared in a space to be monitored is a combination of an infrared detector such as a thermopile, thermistor, or...
3806729 CHARGE COUPLED DEVICE IR IMAGER  
An infrared imager system is disclosed which is characterized by an output having low background radiation noise components. The imager includes an array of charge-coupled device bits which...
3805072 METHOD AND APPARATUS FOR DETERMINING THE LOCATION OF THE EDGE OF A RIBBON OF GLASS UNDER PRODUCTION IN A METAL FLOTATION FURNACE  
Method and apparatus for the accurate determination optically, of the location at one or more selected positions, of the edge of an incipient ribbon of glass being produced in a metal flotation...
3803413 INFRARED NON-CONTACT SYSTEM FOR INSPECTION OF INFRARED EMITTING COMPONENTS IN A DEVICE  
The system scans a device such as printed circuit board, under rigid geometrical and repeatable constraints. The infrared radiated from the electronic component is detected during each scan and...
3794477 GLASS SHEET FLOAT APPARATUS WITH HEAT FLUX EDGE DETECTOR  
3792275 INFRARED INTRUSION SENSOR  
An infrared intrusion sensor is provided to detect a human target anywhere in a 20 × 20 foot area. A wide angle portrait-type lens of germanium is utilized to provide reasonably uniform imaging...
3783271 RADIATION TRACKING SYSTEM  
A tracking system including a staggered array of radiation detectors for use with a telescope wherein the configuration of the array, the geometry of sweep of the array, and the electronics...
3781547 OPTICAL RECEIVER WITH EXTENDED SOURCE DISCRIMINATION  
An optical receiver comprising a lens system for forming an image of a distant light source at its focal plane. The light on either side of the focal plane is intercepted by a reticle of alternate...
3780615 PRESSURE ACTIVATED HEAT ABSORBING OR EMITTING DETECTION SYSTEM  
A detector for use in warfare, to provide intelligence information concerning the use of roads or trails by the enemy. The detector comprises an agglomeration of crushable capsules containing...
3764285 MANUFACTURE OF FLOAT GLASS HAVING CONTROLLED WIDTH  
3727553 FUZE DEVICE WITH TARGET DETECTING MEANS  
A fuse device capable of producing a signal in proximity to a target in response to changes in infra-red radiation due to the presence of the target, the device having a single field of view, a...
3677806 PROCESS FOR MAKING TOBACCO SMOKE FILTERS  
3662171 METHANE GAS DETECTION SYSTEM USING INFRARED  
A gas detection system utilizing infrared absorption properties of the gas in a very narrow, predetermined wavelength band located in an atmospheric spectrum window. An airborne surveillance...