Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 5943386 | High-speed synchronous counter circuitry Digital counter register stages are constructed as two-to-one mux registers, each employing a multiplexer stage having first, second, and third inputs and an output connected to the switching signal input of a D-type flip-flop, whose Q output comprises a ... | 08/24/1999 |
| 5880888 | Helmet mounted display system An apparatus for combining a display image with the field of view of a viewer. Light from either a night vision system (14) of a CRT (12) is directed into an eyepiece assembly (18). The eyepiece magnifies and focuses the image into a combiner (30). The co... | 03/09/1999 |
| 5854601 | Methods for estimating the number of emitters and their parameters A method for estimating the number of emitters of intermittent or periodic pulsed energy waveforms received at a sensor location and the parameters of the intermittent or periodic energy waveforms, including: accumulating over a selected period of time ou... | 12/29/1998 |
| 5796488 | Optical target alignment and technique The invention resides in a method of measuring position and angle comprising the steps of providing a tooling telescope, a transparent target surface and an alignment target having a light reflecting face confronting the telescope. The light reflecting fa... | 08/18/1998 |
| 5748264 | Distortion Corrected display An image-projection display (10) includes a combiner (12) which is transparent to allow a view therethrough, and which is also at least partially reflective so that an image projected onto a surface of the combiner is reflected to a viewer. The display ap... | 05/05/1998 |
| 5715094 | Lensless helmet/head mounted display A helmet/head mounted display including a display image source and a reflective visor for each eye. The image source includes a fiber optic cover plate with a planar input surface and a curved output surface which has curvature providing the correct curva... | 02/03/1998 |
| 5707128 | Target projector automated alignment system An alignment system and method for maintaining the alignment of a target projector with another image projector in a simulator system. The target projector system includes a slewable fold mirror to move the target image in azimuth and elevation. A two pos... | 01/13/1998 |
| 5684935 | Rendering and warping image generation system and method A method and system (10) for generating a plurality of images of a three-dimensional scene from a database and a specified eye point and field of view. The method includes rendering an image frame, and warping the image frame by changing the eye point and... | 11/04/1997 |
| 5677788 | Two-stage projection system A high efficiency, high performance full color projection system. The system includes a one-to-one relay and a refractive projection lens system. The one-to-one relay combines the outputs from two different spectral image sources, such as blue and red ima... | 10/14/1997 |
| 5654973 | Laser system using Co2+ -doped crystal Q-switch A laser system includes a laser resonator cavity having a resonant axis and a lasing element within the laser resonator cavity. The lasing element emits, under stimulation, light at a wavelength of from about 0.95 to about 1.65 micrometers. There is a fla... | 08/05/1997 |
| 5654974 | Passive Q-switch using multiple saturable absorber materials A laser resonant cavity employs a dye sheet Q-switch disposed to receive the output of a laser and a Cr4+ :YAG Q-switch disposed adjacent the dye sheet Q-switch. Disadvantageous aspects of either Q-switch when used alone are eliminated, resulti... | 08/05/1997 |
| 5652681 | Grism (grating-prism combination) A dispersive optical element called a "grism" (50) which has characteristics of both a prism (56) and a grating (62). The grism (50) consists of a prism (56) with a grating (62) disposed adjacent to one surface of the prism (56). Light passing through the... | 07/29/1997 |
| 5647219 | Cooling system using a pulse-tube expander A cooling system utilizes a pulse-tube expander having a hollow pulse tube and three hollow regenerator tubes that lie parallel to and laterally displaced from the pulse tube, and are arranged in triangular fashion about the pulse tube. A cold end of each... | 07/15/1997 |
| 5638169 | Method and apparatus for centering optical lens mount An apparatus for turning the external circumference of an optical lens mount, a collimator is optically aligned with the turning axis (y-y). A fixture is mounted on the apparatus to accommodate the lens assembly. The fixture provides a translatory adjustm... | 06/10/1997 |
| 5636549 | Wire wound threaded elements including lead screws, roller not assemblies and process Producing novel threaded members such as lead screws (10, 20) by winding and anchoring a hardened tempered spring wire (14, 16) around a support body such as a screw shaft (11, 15) to form a hard, smooth thread comprising a wear-resistant running surface ... | 06/10/1997 |
| 5631466 | Apparatus and methods of closed loop calibration of infrared focal plane arrays A calibration circuit (40) for infrared detectors including a first circuit (72) for storing a value representing the level of a first output of each detector in response to the illumination of the detector by a first target. A second circuit (74) stores ... | 05/20/1997 |
| 5623146 | Thermal imaging device with scanned light emitting diodes (LEDs) having variable width geometry and interlacing A thermal imaging device (10) includes a detector (50) having a linearly-arrayed plurality of spaced apart detector elements (50') upon which portions of a viewed scene are sequentially scanned by a scanner (22) in order to capture image information from ... | 04/22/1997 |
| 5621514 | Random pulse burst range-resolved doppler laser radar An laser radar system employing transmitted random and pseudo random optical pulse trains and signal processing that provides unambiguous range and Doppler velocity data. The system comprises a diode-pumped fiber laser local oscillator and an optical rand... | 04/15/1997 |
| 5619095 | Projection cathode ray tube having tapered shaft screw target assembly A projection cathode ray tube having an improved target assembly (22) for minimizing target tilt and hot focus drift is disclosed. The target member (24) is supported by a shaft screw (37) secured to a face plate (20) of the projection tube by an adjustme... | 04/08/1997 |
| 5613365 | Concentric pulse tube expander A pulse tube cooler comprising pulse tube, a regenerator concentrically disposed around the pulse tube, and a thermal insulator concentrically disposed between the pulse tube and the regenerator. More specifically, the concentric pulse tube cooler compris... | 03/25/1997 |
| 5614714 | Thermal imaging device and method A thermal imaging device (10) includes a rotational scanning mirror (32) scanning a viewed scene across a linear detector array (50) including plural spaced apart detector elements (50', 50", 50'", . . . ). The scanner includes an annular magnetic track (... | 03/25/1997 |
| 5614715 | Thermal imaging device with scanned light emitting diodes (LEDs) and second linear array of plural symbology LEDs A thermal imaging device (10) includes a light emitting diode (LED) display (62) providing an image replicating a viewed scene. The LED display (62) also includes an array of symbology LEDs (198) providing symbology superimposed on the image of the viewed... | 03/25/1997 |
| 5612708 | Color helmet mountable display A lighter weight helmet mountable display (HMD) that is easily adjustable to accommodate variable inter-pupillary distances includes substantially parallel left and right optical channels, and projects left and right images onto the helmet's visor. Each c... | 03/18/1997 |
| 5608317 | Complementary linear magnetic position sensor Linear Hall effect magnetic sensor elements (52, 54) are used in a complementary fashion in a position sensor (50). The oppositely signed signal voltages of the sensor elements are amplified and fed into a microprocessor circuit (66). Deviations from the ... | 03/04/1997 |
| 5602391 | Quincunx sampling grid for staring array An imaging device (10) includes an array (18) of picture elements (16) or pixels, each of which is responsive to incident radiant energy to provide an output signal. The array (18) consists of pixels (16) in adjacent horizontal rows, each row having a cer... | 02/11/1997 |
| 5600139 | Battery-operated thermal imaging device with safety battery compartment A thermal imaging device (10) includes a housing (130) defining a battery compartment, and carrying a door portion (166) closable over this battery compartment to provide environmental protection. The battery compartment door (166) includes a spring-loade... | 02/04/1997 |
| 5600286 | End-on transmission line-to-waveguide transition A transmission line-to-waveguide transition that includes a microstrip impedance transformer for matching the impedance of an input transmission line to that of a flared slotline is disclosed. The slotline's width is sufficiently small such that when the ... | 02/04/1997 |
| 5600491 | Thermal imaging system for a military vehicle A thermal imaging system (100) for a vehicle includes an objective lens (104) for receiving an image of the object, an eyepiece lens (102) for viewing the image of the object, and a compensator lens (106) movably located between the objective and eyepiece... | 02/04/1997 |
| 5598207 | Camera pointing mechanism using proximate magnetic sensing A low profile, low cost pointing mechanism for an imaging system. The inventive pointing mechanism (500) includes a mechanism (502, 504) for supporting the imaging system so that it is movable from a first pointing angle to a second pointing angle. A seco... | 01/28/1997 |
| 5591973 | Signal processor for infrared camera An analog signal processor for use with an array of uncooled detectors. Each detector has an amplifier associated therewith and each amplifier provides gain. A first circuit (212, 294, 300, 220) is included for compensating for a DC offset of each detecto... | 01/07/1997 |
| 5592518 | Parallel frame synchronizer for detecting forward-ordered/reverse-ordered, inverted/non-inverted data A high speed parallel frame synchronizer provides high speed frame synchronization functions utilizing parallel processing techniques implemented with commercially available components. Serial input data is demultiplexed to an N bit wide word at a rate of... | 01/07/1997 |
| 5589940 | Apparatus for measuring the curvature of a surface using moveable reflecting and focusing elements A curvature measuring device (10) for measuring the curvature of an object (14) without contacting object (14) includes a moveable frame (20) and a reflector (28) for reflecting light incident thereupon. A reflector (28) is connected and rotatable with re... | 12/31/1996 |
| 5587784 | Multispectral-staring sensor A multispectral imaging sensor. The inventive sensor (10) includes a broadband detector (30) capable of sensing electromagnetic energy across a spectra of interest. A filter arrangement (20) is mounted within the sensor in alignment with the detector (30)... | 12/24/1996 |
| 5587583 | Thermal imaging device A thermal imaging device (10) has single integrated circuit chip (86) to perform various analog signal processing (ASP) functions. The imaging device (10) has a detector array (50) including a plurality of detectors (50') each of which generate an electri... | 12/24/1996 |
| 5587837 | Binocular eyepiece with extended eye relief A binocular optical system has a pair of six lens optical systems. Each system includes one lens (12) defining an optical axis and the remaining lenses (14, 16, 18, 20, 22) centered on the axis. The lens systems (12, 14, 16, 18, 20, 22) collimate the ener... | 12/24/1996 |
| 5579560 | Cable clamp A clamp and clamping technique which provides a secure attachment to a wire or cable with minimal damage thereto. The inventive clamp (10)includes an elongate bolt (14). The distal end is threaded and has first, second and third bores (18, 20 and 22) ther... | 12/03/1996 |
| 5574580 | LCD with integral light confinement having a pair of afocal lenslets positioned between liquid crystal cells and color polarizers Telecentric afocal microlens combinations are inserted between the liquid crystal cells of an active matrix liquid crystal subtractive color display to retain light within a projection of each liquid crystal pixel as the light propagates through the syste... | 11/12/1996 |
| 5572220 | Technique to detect angle of arrival with low ambiguity An angle-of-arrival (AOA) phase unwrapping technique using a trellis search to determine the correct AOA. An antenna array having several elements arranged to establish several baselines (element spacings) between different pairs of elements receives RF s... | 11/05/1996 |
| 5570529 | Torque-limiting weapon mount and weapon system utilizing the mount A sight is affixed to a rail on a receiver of a weapon by a torque-limiting weapon mount. Force is applied to clamp the sight to the rail by the relative movement of two inclined ramps, one on a rotating knob and the other on a nut whose turning generates... | 11/05/1996 |
| 5565675 | Mechanically mounted optical receiver assembly An optical receiver assembly includes a generally flat, stainless steel optical receiver mount for mounting a KOVAR hybrid detector package above a printed wiring board, the detector package having a light transmissive window, a cap, and a mounting flange... | 10/15/1996 |
