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| Number | Title | Issue Date |
| 5138162 | Method and apparatus for producing enhanced images of curved thermal objects Curved thermal objects emit infrared energy with different ratios of ordiy-to-extraordinary polarizations compared to flat thermal objects. The invention takes advantage of this by taking the sum or difference of or between thermal images for two differe... | 08/11/1992 |
| 5079501 | Flexible membrane circuit tester A pattern of electrodes, with electrical lead lines to the electrodes, are arried by a thin-film membrane mounted on a frame. The pattern corresponds to a test point pattern on a circuit to be tested. The lead lines go to edge connectors on the frame. In o... | 01/07/1992 |
| 5075883 | Analog and analytical computation method for determining detector MTF An analog computer method provides modulation transfer functions (MTF) expressions or graphs for arbitrary shaped detectors in an arbitrary scan direction. Fraunhofer diffraction calculations or measurements given for specific shaped apertures are used fo... | 12/24/1991 |
| 5073705 | Broadband, multi-line, optical power limiting scheme This is a new use for known photorefractive crystals. If input radiation taining both non-coherent and multiple-line coherent radiation is directed into such a crystal from a predetermined range of directions with respect to the C axis of the crystal, ra... | 12/17/1991 |
| 5073022 | Pressure activated film tensioner The disclosed invention provides a means for controlling film flatness at r interfaces in the aperture where the film is used as an imaging medium between film holder plates, such as aperture plates. The film is held flat by lateral tension applied outwar... | 12/17/1991 |
| 5065026 | Thermal black-hole mask The black hole which a cryogenically-cooled infrared (thermal) detector ctes in a scene being observed by another such detector is obscured by inserting a partial transmitter-reflector on the optical axis of the detector. A black-body radiator projects a... | 11/12/1991 |
| 5062203 | Method of making a flexible membrane circuit tester A pattern of electrodes, with electrical lead lines to the electrodes, are arried by a thin-film membrane mounted on a frame. The pattern corresponds to a test point pattern on a circuit to be tested. The lead lines go to edge connectors on the frame. In o... | 11/05/1991 |
| 5062204 | Method of making a flexible membrane circuit tester A pattern of electrodes, with electrical lead lines to the electrodes, are arried by a thin-film membrane mounted on a frame. The pattern corresponds to a test point pattern on a circuit to be tested. The lead lines go to edge connectors on the frame. In o... | 11/05/1991 |
| 5063418 | Optical non-linear artificial dielectrics Non-linear optical materials, i.e., those optical materials whose indices refraction depend on input radiation intensity, are few and of low non-linearities; this invention uses various metallic patterns on a transparent substrate, with non-linear elemen... | 11/05/1991 |
| 5057815 | Combat vehicle light signaling system A military range safety light signaling system used on combat vehicles of e type having a freely rotatable gun turret. The signaling system is comprised of a vertical column of lights, preferably three lights from top to bottom of red, amber, and green in... | 10/15/1991 |
| 5047620 | Laser pulse receiver for detecting and recording weak laser pulses in variable background radiation A radiation detection system for use in the visible and near infrared reg which is capable of detecting and recording extremely weak laser pulses in the few nanoseconds range. The system receiver can be directed towards strong radiation sources, such as ... | 09/10/1991 |
| 5046239 | Method of making a flexible membrane circuit tester A pattern of electrodes, with electrical lead lines to the electrodes, are arried by a thin-film membrane mounted on a frame. The pattern corresponds to a test point pattern on a circuit to be tested. The lead lines go to edge connectors on the frame. In o... | 09/10/1991 |
| 5043930 | Digital simulation model for forward looking infrared (FLIR) sensors A forward looking infrared (FLIR) sensor digital simulation model in which he optics modulation transfer function (MTF) is applied to a set of input scene two dimensional digital data in the spatial domain without transferring the data into the frequency d... | 08/27/1991 |
| 5037621 | System for the in-situ visualization of a solid liquid interface during crystal growth A system for visualizing the solid-liquid interface of a growing crystal in-situ using a modified vertical Bridgman crystal growth method. An infrared source emits radiation which passes through a furnace window, the crystal material and the growth ampoul... | 08/06/1991 |
| 5035472 | Integrated multispectral man portable weapon sight A multispectral sight integrated onto a man portable rifle or stand alone apon device for sighting the rifle or for surveillance by the device. The multispectral sight is contained in a unitary housing attached to or manufactured as an integral part of th... | 07/30/1991 |
| 5018163 | Gatling gun laser pulse amplifier using an optical diode A laser oscillator system which transmits laser input beam pulses through optical diode and into a plurality of time-multiplexed phase conjugate amplifier which sequentially amplify in chronological order subsequent input beam pulses. The optical diode i... | 05/21/1991 |
| 4884896 | Production line emissivity measurement system The emissivity of camouflage material is determined from the apparent body emperature measured by a radiometer, calibrated to indicate a temperature of a blackbody would emit corresponding to the radiation received therefrom; and the true temperature of th... | 12/05/1989 |
| 4880478 | Protective coating for steel surfaces and method of application A novel conversion coating composition and a method for treating corroded eel surfaces to convert them into a suitable substrate for accepting organic coatings are provided. Corroded steel surfaces treated with the novel composition of this invention by t... | 11/14/1989 |
| 4879154 | Reinforced utility mat adaptable as military overhead foxhole cover and foot suspension bridge A portable mat assembly for combat soldiers suitable for battlefield emplment preferably as an overhead cover assembly for supporting a load of loose and/or sandbagged soil over a foxhole battle position to provide occupants of the position protection ag... | 11/07/1989 |
