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4115006 |
Arrangement for detecting light sources
An arrangement which enables the presence in an observed field of a light source whose radiation spectrum is known to be detected with a high signal to noise ratio. It includes an acousto-optical...
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4112294 |
Radiant energy detection system for the angular location of a light-radiating object
A radiant energy detection system which allows angular location in bearing and elevation by using a simple detector element and a static mask preferably formed by a PLZT strip between two...
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4099879 |
Optical antenna or lens
An opto-electronic antenna system includes a plurality of transmitting/receiving antennas disposed over a prescribed geometrical surface such as a sphere. To the antennas are optically coupled...
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4097750 |
Method of orienting objects using optically smeared images
The orientation of an industrial part such as a microcircuit chip having a pattern of dominant parallel lines is determined by an optical method. An image of the parallel line pattern is smeared or...
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4097154 |
Precise pointing alignment of optical probes
Two camera models are each viewed by an optical probe such that each optical probe views its respective model with the same perspective. To this end both probes are pointed towards a desired point...
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4097155 |
Target locating system
A forward observer directs a pulsed neodymium laser illuminator in the direction of a target to be marked. A detector-receiver which is fixedly mounted to an attacking aircraft detects the...
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4092072 |
Optical sensors
An angular position sensor having a housing with an aperture in the form of two mutually inclined slits. Behind the aperture is a linear array of light sensitive elements which intercepts laminar...
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4065860 |
Weapon training simulator
An apparatus for automatically determining without human intervention the intersection point of the axis of an aimable optical system with a plane. A scanning radiation source is imaged on a...
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4045140 |
Means for near real time C-W laser source characterization
A means for obtaining east-west and north-south information for characterng a continuous wave laser source using either time blanking and frequency modulation or scanning with orthogonal time...
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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 as...
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4039825 |
Position indicating system
The invention concerns apparatus for indicating the position of a light beam relative to a target, comprising an optical system, as many linear arrays of photoelectric elements as the number of...
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4020339 |
System for determining the deviation of an object from a sight line
A system for determining the deviation of an object from a reference line, in particular for determining the deviation of a guided missile from a sight line extending from the missile launcher to a...
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4007991 |
System for transmitting position information
Various items of information are transmitted to a body moving above the surface by a pulsed fan-shaped beam of radiant energy having a flatwise angular sweep. Each such item can comprise two or...
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4006356 |
Radiant energy tracking device
1. In a radiant energy tracking device sensitive to radiation of scanned targets the combination of; Optical focusing means having an optical axis for receiving modulated signal pulses reflected...
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4003655 |
Hybrid silicon avalanche quadrant detector
A method and apparatus for retrofitting an airborne laser tracker with a er ranging capability is described. A silicon avalanche detector is mounted within the silicon quadrant receiver of a laser...
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3966329 |
Precision optical beam divider and position detector
An optical assembly defines a reflector or refractor element installed behind the film plane of an optical scanner or fixed beam system. Its function is to image the rear nodal plane of a spot...
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3957377 |
Method of and apparatus for sensing the position of a body
The position of a body is determined using a beam of electro-magnetic waves directed along a sight line generally towards the body. The cross-section of the beam is changed and a sensor mounted on...
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3951550 |
Direction-sensing virtual aperture radiation detector
A radiation sensor for determining a direction, relative to the sensor, in which a radiation source is located. A plurality of elongated radiation detectors are located in a base plane of the...
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3950099 |
Two-axis image motion detector
A two-axis image motion detector detects two separate velocity channels through a single optical channel with a single photo detector. A single disc rotates at a substantialaly constant rotational...
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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 rhombic...
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3942009 |
Directional radiation detector
A directional radiation detector having a pyroelectric sensing medium for responding to radiation and a directional screen formed of a panel with a plurality of axial passages that restrict the...
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3941483 |
Target identification apparatus
Apparatus including discrimination circuitry for reliably identifying a target illuminated by a pulsed laser beam is disclosed. Laser energy received from objects within a field of view is imaged...
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3940607 |
Photo-electric lightning detector apparatus
The apparatus is used primarily to monitor the occurrence of lightning diarges in the vicinity of a known objective such, for example, as a large rocket launch tower or other object which might be...
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3937951 |
All-sky photoelectric lightning detector apparatus
A pair of position sensing photodiodes of a conventional quadrature or duaxis type are deployed face-upwardly at a predetermined distance one from the other. A vertically pointing fisheye lens...
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3936629 |
Horizon sensor for a satellite in geostationary orbit
A horizon sensor for satellites comprising a mask with four sets of four openings one of which receives a projected portion of the earth-space transition line, another is in the form of a grating...
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3917412 |
Advanced helmet tracker using lateral photodetection and light-emitting diodes
A means for sensing the pilot's line-of-sight in an aircraft, including two ight detectors mounted on the cockpit frame and two light emitters mounted on the pilot's helmet. Each detector senses...
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3897151 |
Laser miss distance indicator
The laser miss distance indicator is an electro-optical device which utilizes a light emitting diode and an electro-optical scanning system to radiate a hemispherically shaped pattern of...
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3882482 |
Optical radiant energy encoding and correlating apparatus
Object locating apparatus including receiver optics for focussing optical radiant energy emitted from an object within its field of view onto a rotatable drum having a plurality of pseudo-random...
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3876308 |
Automatic command guidance system using optical trackers
This invention comprises a missile guidance system wherein an automatic etro-optical tracking device is used to track a target and a second electro-optical tracking device, which shares certain...
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3875404 |
Wide angle sun sensor
A single-axis sun sensor consists of a cylinder of an insulating material on which at least one pair of detectors is deposited on a circumference of the cylinder. At any time only one-half of the...
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3866229 |
METHOD AND APPARATUS FOR AUTOMATICALLY DETERMINING POSITION-MOTION STATE OF A MOVING OBJECT
This invention relates to a method and means of determining at least one dimension of the position-motion state of one or more points relative to at least one reference point by performing a...
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3864043 |
ANGULAR DEVIATION MEASURING DEVICE AND ITS METHOD OF USE
A high resolution measuring device and its method of use that utilizes a spatially modulated beam, like a laser beam, to determine orientation deviations of a device. The angular deviations are...
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3858201 |
HIGH ANGULAR RESOLUTION SENSOR
A system for determining the direction from which an illuminating laser beam is received. A cylindrical optical system focuses a laser beam from the field of view as a sharp line image at its focal...
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3853405 |
HEAT OR LIGHT SOURCE TRACKING DEVICE
1. A radiant energy device for indicating when a predetermined axis is in line with a source of radiant energy and comprising in combination, a rotatable optical system having an axis of rotation...
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3813171 |
LASER BEAM SURVEY METHOD AND APPARATUS
Laser beam survey method and apparatus utilizing a single laser beam source to establish both horizontal and vertical surveying reference planes. Such method and apparatus can be utilized, for...
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3809477 |
MEASURING APPARATUS FOR SPATIALLY MODULATED REFLECTED BEAMS
A modulated displacement indicator and its method of use that utilizes unfocused electromagnetic waves, like laser waves, which are spatially modulated. Either an angular direction or linear...
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3799676 |
OPTICAL TRACKING SYSTEM
An optical tracking apparatus incorporating a radar system to search, acquire and track a co-operating target. A YAG laser illuminator and a tracker which are mounted together at a ground...
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3781111 |
SHORT RANGE LASER OBSTACLE DETECTOR
A short range obstacle detector for surface vehicles is provided by an array of laser diodes operated one at a time, one for each of a plurality of adjacent azimuth sectors. A vibrating mirror a...
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3751169 |
METHODS FOR DETERMINING THE POSITION OF A POINT IN SPACE RELATIVE TO A GEOMETRICAL LINE DEFINED BY AT LEAST TWO OF ITS POINTS AND INSTALLATION FOR PERFORMING SAME
There is provided a method and an apparatus for levelling and aligning railroad track by determining the position of a point on the track to be corrected relative to a geometrical line defined by...
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3744914 |
AUTOMATIC POSITIONING DEVICE
An automatic positioning device for automatically positioning an object in a plane comprises a light source for illuminating a member formed with an opening through which light from the light...
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3739176 |
ARRANGEMENT FOR THE CONTROLLED GUIDANCE OF A WORKING MACHINE WITH LASER BEAMS
An apparatus which moves may be simply and accurately controlled to travel generally parallel with a laser beam where the apparatus has connected therewith or mounted thereon a control means...
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3736061 |
AIRCRAFT PROXIMITY WARNING INDICATOR SYSTEM
An aircraft warning system is disclosed for detecting and displaying the relative azimuth and elevation of any aircraft xenon beacon in the vicinity. A total field of view for the system is...
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3727055 |
OPTICAL POSITIONING SYSTEM
A positioning system is provided for positioning one movable object carrying a detector unit with respect to another movable object carrying a source of radiation. The detector unit has an axis of...
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3723744 |
OPTICAL TRACKER WITH VARIABLE DENSITY SPATIAL FILTER
An optical filter whose transmission coefficient increases monotonically with distance from the center of the filter is placed in front of the Image Position Sensor of an optical tracker. The...
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3708671 |
SYSTEM FOR INDICATING DIRECTION OF INTRUDER AIRCRAFT
A pilot warning indicator system is disclosed including a flashing beacon, a detector, and an indicating panel on each aircraft. The detector responds to radiant energy from another aircraft's...
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3700905 |
MULTIPLE ELEMENT SENSING APPARATUS
A multiple field optical signal detection apparatus employing a plurality of rotating field detector areas of increasing size, each such area corresponding to an increasing field of view. Each...
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3699341 |
MUZZLE FLASH DETECTOR
An optical sight with muzzle flash detector for providing a visual indication on the sight image of a muzzle flash of a firearm by passive detection of the IR radiation coming from the flash. A...
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3699345 |
SENSING AND TRACKING APPARATUS
1. Sensing apparatus, comprising: A radiation responsive, variable impedance detector element; Biasing means coupled to said element for providing a pair of alternating current bias signals through...
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3676692 |
POSITIONING APPARATUS FOR ARTICLE WITH PORTION DETERMINING PORTION OF PREDETERMINED CONFIGURATION
An article-positioning apparatus for precisely determining the location of an article either with respect to another article or with respect to a given reference. The article has a...
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3658427 |
ATTITUDE SENSOR, AND SYSTEM FOR CONTROLLING ATTITUDE OF AN OBJECT
Apparatus for sensing attitude of an object with respect to the direction of incident coherent light, by sensing the relative phase of such light at two spaced-apart points which are located...
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