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Class 250/203.3 - Self-luminous target


Subclass of Class 250 - Radiant energy
Definition: Subject matter in which the object to be tracked emits light
No. of patents: 81
Last issue date: 09/13/2011


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NumberTitleIssue Date
8017894Imaging system using a negative index of refraction lens
Systems and methods for imaging a distant light source at an enhanced resolution is provided. An evanescent field generator an evanescent field generator that receives an incident electromagnetic field representing at least one distant light source and restores high...
09/13/2011
7642493Light sensor for determining a position of a light source
A light sensor for recording the position of a light source includes a photo detector and a light modulator. The light modulator is configured to modulate the quantity of light hitting the photo detector based on an incident angle (α) of the light from the light so...
01/05/2010
7427732Method for targeting a source of an incoming laser
A system and method for laser source detection. An exemplary embodiment of the system includes a first array of lenses, a second array of opto devices (including light sources and light detectors), and at least one processor. By positioning the array of lenses to de...
09/23/2008
7423279Systems and methods that detect changes in incident optical radiation
Systems, methods and sensors detect changes in incident optical radiation. Current is driven through one or more active areas of a detector while the incident optical radiation illuminates the active areas. Voltage is sensed across one or more of the active areas, a...
09/09/2008
7394051Image-based tracking system for model train control
A cost-effective and accurate model train position transponding arrangement deploys inexpensive CCD cameras to “watch” the layout and determine the locations of trains and landmarks. Each item of interest features an optical beacon, preferably an infrared LED, w...
07/01/2008
7274802Automatic tracking apparatus for reflector
The present invention comprises an illumination portion (11), and, a light receiving portion (12) having an image sensor (27) which are disposed in a surveying machine body (8), arithmetic portion (38) for calculating a position of...
09/25/2007
7265331Optical sensing apparatus and method for determining highest intensity of light in an array
A plurality of optical sensing elements in an array where each element has a unique element address identifying the element location. Each element senses light and produces an element address signal in proportion to the intensity of the light sensed by the element. ...
09/04/2007
7190392Telepresence system and active/passive mode display for use therein
A telepresence server is for connection to a telecommunications network for providing access to a reality engine for a plurality of passive users. The reality engine can be controlled by an active user or a professional director through the network or by a local pro...
03/13/2007
7148458Circuit for estimating position and orientation of a mobile object
A circuit system for estimating position and orientation of a mobile object based on lights from a plurality of external light sources. The circuit comprises a position-sensitive light sensor for detecting the light sources and generating a first signal, an analog f...
12/12/2006
7128076Automated canopy positioning system
An automated canopy positioning system for providing solar protection is disclosed. The automated canopy positioning system orients the canopy of the umbrella in relation to the sun so that a shade at a predetermined location is provided thereunder. The system has a...
10/31/2006
7072032Automatic tracking apparatus for reflector
The present invention comprises an illumination portion (11), a light receiving portion (12), disposed in the surveying machine body (8), having an image sensor (27) for receiving a reflection light image (MO) of the measurement light, ar...
07/04/2006
6917025Combined earth/star sensor system and method for determining the orbit and position of spacecraft
A combined earth-star sensor system (1) for three-axis attitude determination of satellites in space comprises separate apertures with different directions of observation and common image pickup devices (4) for the earth sensor and the star sensor. A c...
07/12/2005
6861633Microelectromechanical system optical sensor providing bit image data of a viewed image
An integrated microelectromechanical system (MEMS) sun sensor includes a filter, microlens, aperture and a folded MEMS optical element combined with an active pixel sensor array to form an integrated spacecraft sun sensor in an integrated sealed package, offering lo...
03/01/2005
6561462Spacecraft power/sun aquistion algorithm using slit sun sensors
A spacecraft power/sun acquisition method includes a pitch search phase in which the spacecraft is rotated about a pitch axis, stopped, quaternions reset to remember position, and yaw search phase is entered when a first TOA occurs from a first slit sun s...
05/13/2003
6396047Sensor for detecting a quantity of light incident on a vehicle
A sensor for detecting a quantity of light has a housing, which has an axis along a direction in which light enters with an azimuth of 0°. A right side photodetector is disposed on a left side of the axis, and a left side photodetector is disposed on a r...
05/28/2002
6324296Distributed-processing motion tracking system for tracking individually modulated light points
Disclosed is a distributed-processing motion capture system (and inherent method) comprising: plural light point devices, e.g., infrared LEDs, in a motion capture environment, each providing a unique sequence of light pulses representing a unique identity...
11/27/2001
6133997System for spotting moving objects based on a plurality of artificial satellites
A system for spotting moving objects based on a plurality of artificial satellites including: a step of taking images at the same point in time by using imaging devices respectively mounted on at least two units of artificial satellites located separately...
10/17/2000
6088091Position tracking system
An optical position tracking system that tracks the position of objects, using light intensity and/or frequency with the application of geometry and ratios of detector responses, is provided, having light distributing and light detecting components that e...
07/11/2000
6054715Radiation sensor determining the direction of incidence
A radiation sensor for determining the direction of incident radiation, which is designed to be able to measure via only one amplification path, within a dynamic range from the sensitivity limit of photodiodes included in the sensor to far above their sat...
04/25/2000
5973310Optical acquisition and tracking system
A method of processing an electromagnetic signal received and contained completely within the bounds of a two dimensional signal detection array, is comprised of (a) determining a position of the signal in a large window on the detector array, (b) reducin...
10/26/1999
5900620Magic mirror hot spot tracker
An image tracker (10) that tracks an object (16) targeted for engagement by a laser weapon (12). The tracker (10) includes receiver optics (31) that receive radiation (30) from both a detected target (16) and a laser beam (14) incident thereon, and a pola...
05/04/1999
5877490Quadrant light detector
A quadrant light detector that employs the concept of constructed occlusion to improve its accuracy and by incorporating baffles within the design to improve its detection response to incoming light having an incidence angle neat the horizon, and to divid...
03/02/1999
5821526Star scanning method for determining the line of sight of an electro-optical instrument
A method for determining the line of sight of an electro-optical device mounted in a spacecraft such as a satellite. The electro-optical device includes an electo-optical element that detects impinging light energy and produces electrical pulses correspon...
10/13/1998
5815590Target light detection
A method of determining the existence of a target light source comprising progressively receiving successive pixel intensity values row by row and column by column of a scanned array of a light detector, comparing each pixel intensity value as it is recei...
09/29/1998
5793541Controlled and stabilized platform
In the controlled and stabilized platform (1) comprising a plurality of optical apparatuses, the optical apparatuses (8, 9, 10) are mounted in a casing (7) which is pivotable about a sight axis (12) in a bearing (13) which is pivotable about a bearing axi...
08/11/1998
5705804Quadrant light detector
A quadrant light detector that employs the concept of constructed occlusion to improve its accuracy and by incorporating baffles within the design to improve its detection response to incoming light having an incidence angle near the horizon, and to divid...
01/06/1998
5668629Remote tracking system particulary for moving picture cameras and method
The system includes a base unit sensitive to infrared (IR) signals transmitted by a mobile remote unit to an IR receiver which is placed behind a rotating set of signal blocking blinders whose position at any time defines a view angle with a position know...
09/16/1997
5600123High-resolution extended field-of-view tracking apparatus and method
An optical tracking system and method are disclosed. The optical tracking system includes a scanning mirror which scans and receives images within a field of view scannable by the mirror. An optical system receives images from the scanning mirror and dire...
02/04/1997
5572317Remote-controlled tracking system for tracking a remote control unit and positioning and operating a camera and method
The system includes improvements to a remote tracking system for the control of the field of view of a camera. The system provides for improved motor control for PAN and TILT functions and expanded modes of operation in both the automatic and manual opera...
11/05/1996
5570177Camera lens control system and method
The system includes distance measuring capability for use in the local and remote control of a camera lens for automatic and programmable control of ZOOM perspective, FOCUS, IRIS and other functions of the camera in conjunction with the programming of an ...
10/29/1996
5561519Remote-controlled tracking system for tracking a remote control unit and positioning and operating a camera and method
The system includes improvements to a remote tracking system for motion picture as well as still picture cameras. The system provides for improved motor control for PAN and TILT functions including motor turn-off in the event of stall; the use of optical ...
10/01/1996
5559322Imaging optical tracker
Apparatus and a corresponding method for its use, for detecting and tracking targets in an optical field of view. The apparatus includes conventional telescopic optics to gather light from the field of view, beam splitters to divide the resultant beam int...
09/24/1996
5517300Remote controlled tracking system for tracking a remote control unit and positioning and operating a camera
The system includes improvements to a remote tracking system for motion picture as well as still picture cameras. The system provides for improved motor control for PAN and TILT functions including motor turn-off in the event of stall; the use of optical ...
05/14/1996
5512741Target acquisition optoelectronic system with a very wide field
The system comprises a focusing optics in the focal plane of which a linear array of photodetectors is disposed. A double prism located opposite to said photodetectors with respect to said focusing optics, is servo controlled in rotation relative to a sup...
04/30/1996
5471296Camera lens control system and method
The system includes distance measuring capability for use in the local and remote control of a camera lens for automatic and programmable control of ZOOM perspective, FOCUS, IRIS and other functions of the camera in conjunction with the programming of an ...
11/28/1995
5468963Surveillance system
A missile approach warning surveillance system adapted to operate in the ultra-violet ozone absorption waveband....
11/21/1995
5434406Hemispheric matrixsized imaging optical system
An optical seeker (10) has an objective lens group (12) with a wide field of view (e.g., up to about 180 degrees). Light energy from objects within a field of regard is focused by the objective lens group (12) onto the end of a congruous overlay rod (24) ...
07/18/1995
5432597Remote controlled tracking system for tracking a remote-control unit and positioning and operating a camera and method
The system includes improvements to a remote tracking system for the control of the field of view of a camera. The system provides for improved motor control for PAN and TILT functions and expanded modes of operation in both the automatic and manual opera...
07/11/1995
5319187Laser beam receivers and canal building laser devices
An arrangement comprising a laser beam receiver and a canal building laser device is intended to be disposed in a pipeline. The canal building laser device is located in a shaft at the beginning of the pipeline and the laser beam receiver is located at th...
06/07/1994
5297762Optical navigation sensor with single two-dimensional CCD
In an optical navigation sensor used in a navigation system on a spinning spacecraft, a single CCD is positioned on an optical axis of an optical lens system at an image forming plane on which images of stars are formed by the lens system. The exposed sur...
03/29/1994
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