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7154589 |
Rangefinder apparatus
In a rangefinder, if sensor data initially received by a sensor data storage part from an A/D converter includes data with low contrast, the sensor data storage part receives the sensor data at...
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7095487 |
Systems and methods for determining depth using shuttered light pulses
Systems and methods are presented that use light sensors and computing devices to compute the depth of an object using shuttered light pulses. In one embodiment, depth is determined as follows: A...
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7042491 |
Image signal output method, image signal output device, rangefinder, and imaging device
An image signal output device for use in a passive range finder. The device can correct the sensitivities of sensor arrays according to the amount of incident light. The output device has line...
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6937321 |
Distance measuring method and image input device with distance measuring function
A distance measuring technology capable of stably and accurately performing distance measurement of an object without any highly accurate focus control mechanism is provided. A distance measuring...
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6583860 |
Range finder
A range finder includes a light source for emitting a light beam to an object to be measured, a detector for detecting a reflected light from the object, a measuring part for calculating the...
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6583433 |
Range finder structure allowing easier filling of the transparent filler
A range finder includes an improved module structure, that facilitates injecting a transparent filler uniformly into the entire light guide spaces neither leaving any unfilled region nor impairing...
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6549874 |
Distance measuring device
A distance measuring device is provided with regulating circuit for removing offset voltages. Before conducting distance measurement, the regulating circuit outputs a reference voltage on the basis...
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6466306 |
Night convoy maneuver adapter
A reticle adapter ( 100 ) for judging distance from an object ( 12 ) is used with a viewing apparatus (A) to detect relative positions of signals from at least two spaced apart marker devices ( 10...
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6327028 |
Night convoy maneuver system
A distance judging system (S) includes at least two spaced apart marker devices (10) formed on a first object (12) and providing a signal (14). A viewer (A) is adapted to detect relative position...
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5914775 |
Triangulation rangefinder and sight positioning system
A rangefinder includes an angle sensitive transducer and a programmed data processor to calculate the distance to a target. In one embodiment, the rangefinder also includes a point-to-point...
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5900927 |
Variable target autofocusing and range finder for measuring distance to a subject
An image pickup frame is divided into a plurality of areas. A contrast at each area is measured. An area where a main subject is located is detected by comparing contrasts at areas. A distance to a...
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5877849 |
Object detection system
The present invention provides for a detection system for detecting an object, comprising optical elements including a radiation source of an electromagnetic nature and at least one detector...
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5548392 |
Optical position detector having scale pattern spot-illuminated to increase resolution
An optical position detector is provided with an image forming member 1, a scale plate 2, and an image pickup 3, which are disposed sequentially along an optical axis in the order mentioned, and a...
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5165064 |
Mobile robot guidance and navigation system
A mobile robot which has a guidance and navigation system (sometimes called a "vision" system) employing one or more arrays of ultrasonic transducers and, preferably, one or more infrared...
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5042942 |
Laser location apparatus for underwater bodies
A laser beam is projected from either an underwater body or an overhead support platform, with the laser energy being detected by the other piece of apparatus using a photo detector. Either the...
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4948258 |
Structured illumination surface profiling and ranging systems and methods
Range and/or profile of a test surface, particularly a submarine surface, are determined by passing a laser beam through a holographic grating structured to emit a divergent light beam defining a...
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4922281 |
Distance measuring device for automatic focusing camera
A distance measuring device of a triangulation system type for an automatic focusing camera having a photographing optical system. The device comprises a distance measuring unit for measuring a...
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4896962 |
System for measuring the angular displacement of an object
An improved helmet line of sight measuring system for determining the spatial location of a helmet and the line of sight of an observer wearing the helmet, both relative to a coordinate reference...
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4867556 |
Apparatus for determining the path of a pulsed light beam
Apparatus measures the scattered radiation received by a detector device in a measuring station (F) situated on the side of the beam path (O). The detector device has a sensitivity lobe which has a...
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4815840 |
Position locating system for a vehicle
A position locating system for a vehicle such as a mobile robot which includes a multisector sensor for sensing the coded signal emitted by a beacon. There are means responsive to the sensor for...
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4710020 |
Beacon proximity detection system for a vehicle
A proximity detection system for determining the distance between a vehicle and a navigation beacon by resolving the altitude angle between the beacon and the vehicle and determining the distance...
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4614426 |
Passive target detector
Passive target detectors which employ infra-red sensors may have difficulty in distinguishing between a cool target near the detector and a warmer one further away. A detector detects a source of...
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4582430 |
Position determination
A method and apparatus for determining the relative positions of a first object (1) and a second object (3). The method comprises illuminating the first object (1) so as to produce a shadow (17) of...
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4483598 |
Gun sight
This invention provides an optical sight comprising a first telescope having a fixed increasing magnification whose image is combined and overlayed with the image of a second telescope having a...
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4368978 |
Image scanning system
This specification discloses an image scanning system in which an object image formed by an optical system is electrically scanned by utilization of a photosensor array device and the image...
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3653769 |
STADIAMETRIC RANGING SYSTEM
Subject disclosure relates to a novel and improved system for determining e range and aspect of an aircraft or any other vehicle moving in three dimensions in relation to a fixed point. The system...
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3536924 |
TRACKING DEVICE FOR MOVING WAVE ENERGY SOURCE TO OPTICAL DETECTORS UTILIZED TO DETERMINE RANGE AND VECTOR VELOCITY OF A MOVING WAVE ENERGY SOURCE
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3393321 |
Visual range measuring system including a plurality of spaced lamps
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3147335 |
Optical miss-distance indicator
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3076095 |
Method and apparatus for determining altitude
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