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In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7283127 | Stylus input device utilizing a permanent magnet A stylus that operates utilizing magnetic fields, wherein a permanent magnet is disposed within a passive stylus that is detectable by a plurality of magnetic sensors that remove the magnetic field of the stylus from the earth's relative magnetic field to thereby ob... | 10/16/2007 |
| 7253928 | Imaging optical system and image reading apparatus using the same Obtained are an imaging optical system having a simple structure in which imaging position deviation due to deformation caused by a weight of an off-axial optical element is reduced and an image reading apparatus using the same. According to an imaging optical syste... | 08/07/2007 |
| 7246456 | Linked mode for a multi-axis machine control A tool control system includes actuators to move the tool, a controller to permit either manual or automatic tool operation, and an output configured to display information pertaining to a position of the tool. In addition, the tool can be moved in either an indepen... | 07/24/2007 |
| 7229017 | Laser locating and tracking system for externally activated tags A system for identification and tracking of a tag distributed in a room is presented. A laser base station is configured to scan laser beams through a portion of a room. A tag is configured to be reactive to incident laser beams scanned from the laser base station t... | 06/12/2007 |
| 7230694 | Method for determining an axle geometry and sensor for its execution Method for determining an axle geometry by recording and evaluating a topographical image of a face (6) of a wheel (1) fitted to an axle (2), and a sensor (10) for execution of the method. The method includes projecting light with a codin... | 06/12/2007 |
| 7050177 | Method and apparatus for approximating depth of an object's placement onto a monitored region with applications to virtual interface devices Structured light is directed across a monitored region. An image is captured of a light pattern that forms on the object as a result of the object intersecting the structured light when the object is placed at a first position in the monitored region. A geometric ch... | 05/23/2006 |
| 6972834 | Optical distance sensor An optical distance sensor includes a first substrate provided with a light emitting element and a light detecting element, a one-piece optical structure body on a second substrate, the optical structure body having optical elements for converging incident light in ... | 12/06/2005 |
| 6963657 | Object recognition system An object recognition system mounted on a vehicle comprises a camera and a controller. The camera captures an image in front of the vehicle. The controller divides the image into a plurality of windows. The controller measures distance to the road surface for each o... | 11/08/2005 |
| 6963074 | Omni-directional optical code reader using scheimpflug optics An optical code reader for reading optical codes in any orientation with a preferred depth of field (DOF), the optical code reader including imaging sensor arrays arranged at angles to one another and tilted in accordance with the Scheimpflug principle to allow for ... | 11/08/2005 |
| 6957020 | Optical inter-satellite link (OISL) gimbal An optical inter-satellite link (OISL) gimbal 10 that is particularly suited for directing an optical beam in an optical inter-satellite communications system is disclosed. The OISL gimbal 10 includes an azimuth drive housing 20, a generally cyl... | 10/18/2005 |
| 6782118 | System for measuring, substantially instantaneously, the distance and trajectory traveled by a body in flight during sports competitions A system for measuring the distance traveled by bodies in flight during sports events, the bodies executing trajectories having a common predetermined take-off area, and a variable landing point within a landing surface. The system includes a fixed image acquisition... | 08/24/2004 |
| 5812247 | Arrangement for optically tracking moving objects and for measuring their trajectories An arrangement for optically tracking moving objects and for measuring trajectories of the moving objects using triangulation. The arrangement includes a pair of measuring locations including a first measuring location and a second measuring location disp... | 09/22/1998 |
| 5805275 | Scanning optical rangefinder A scanning optical rangefinder including an optical scanner and a light source. The optical scanner includes a rotating scan disc with a circular array of concave reflectors thereon. Mirrors are provided for directing light from the light source towards t... | 09/08/1998 |
| 5764344 | Observing apparatus An observing apparatus by which a plurality of observers are able to easily find out the same target object includes first and second telescopes. The first telescope has an arithmetic control unit for generating positional data for indicating a position o... | 06/09/1998 |
| 5760884 | Distance measuring apparatus capable of measuring a distance depending on moving status of a moving object A distance measuring apparatus of an apparatus having a moving mechanism includes: a speed detector; and a mechanism responsive to a moving speed signal supplied from the speed detector which varies a focus lens position and a focal length of a light rece... | 06/02/1998 |
| 5721611 | Photogrammetric camera, in particular for photogrammetric measurements of technical objects A photogrammetric camera, in particular for photogrammetric measurements of technical objects, has a primary lens system (10) designed as a focussable objective and a combination of at least one high-resolution sensor (12, 14, 16) and a lens unit (18, 20,... | 02/24/1998 |
| 5621807 | Intelligent range image camera for object measurement A range imaging sensor for classifying and determining the position and orientation of remote objects combines a high resolution three-dimensional range imaging camera with a conventionally configured data processor. Three-dimensional object geometry sens... | 04/15/1997 |
| 5543910 | Passive submarine range finding device and method A range finding device and method for determining the distance between a merged submarine and a target above the surface having a first and second periscopes mounted on a submarine with a known separation. These periscopes are rotatable and extensible ab... | 08/06/1996 |
| 5486690 | Method and apparatus for detecting laser light A laser light detector is provided which can be used to detect pulsed laser light that is produced by a rotating laser light source on a construction job site. The laser light detector provides an easily-read display which is indicative of the present lev... | 01/23/1996 |
| 5227622 | Wireless input system for computer using pen position detection A wireless input device for computer comprises a pen-type input device having a source of light capable of transmitting pulses. The wireless input device further comprises an input device body including two angle detecting section, each having a light rec... | 07/13/1993 |
| 5026153 | Vehicle tracking control for continuously detecting the distance and direction to a preceding vehicle irrespective of background dark/light distribution In an automobile radar apparatus according to the present invention, a light-receiving optical system is rotated in response to an output from an image formation position calculation unit in such a manner that light source is focused on a vertical plane c... | 06/25/1991 |
| 5008543 | System for determining the position of at least one target by triangulation A system is disclosed for determining the position of at least one target by triangulation, comprising two passive sighting devices which measure the intensity of radiation received along a sighting line which scans a vertical sighting plane. They are dis... | 04/16/1991 |
| 5000564 | Laser beam measurement system A laser beam three dimensional position measurement system includes a laser transmitter mounted at a stationary reference position at a work site and a receiver mounted on a mobile machine at the site. The transmitter produces a laser reference plane by s... | 03/19/1991 |
| 4907879 | Remote controlled land surveying assistance device for path response alignment to beam energy The present invention provides a land surveying assist device, which can be remotely controlled on command for path alignment. The device includes a receiver for receiving beams of energy, such as infra-red energy, from a remote transmitter source in the ... | 03/13/1990 |
| 4866362 | Target tracking system The invention relates to a target tracking system comprising two identical stationary and mutually distant sub-systems (5, 6), each sub-system including a laser source (7, 8) and two perpendicularly pivotable mirrors (10, 11), such that a laser beam can b... | 09/12/1989 |
| 4688933 | Electro-optical position determining system A position determining system for providing electrical signals representative of the positions of a light source movable within a defined area. The system may be implemented for purposes of data entry or for purposes of object location or surveying. When ... | 08/25/1987 |
| 4664512 | Three-dimensional range finder A range finder which measures positions in three-dimensional space of object points within a field of view. Pixel data outputted from pixels in different depths of focus are detected, while said depth of focus is moved. Pairs of pixel data, one outputted ... | 05/12/1987 |
| 4637715 | Optical distance measuring apparatus Disclosed in an optical distance measuring apparatus using an observation lens and at least one reflector. Thanks to the use of reflectors the whole size of the apparatus reduced at least one half of a conventional distance measuring apparatus, still assu... | 01/20/1987 |
| 4622458 | Trajectory acquisition and monitoring system The system includes a plurality of mobile optical-electronic data acquisition stations for individual training on particular mobile targets. These stations are linked through an information exchange and distribution system with a common center cooperating... | 11/11/1986 |
| 4469939 | Distance measuring apparatus A distance measuring apparatus is provided with first and second imaging lenses for distance measurement for forming images of the same object, a first photoelectric device having a light-receiving surface for receiving the first image by the first imagin... | 09/04/1984 |
| 4209241 | Photoelectric rangefinder A photoelectric rangefinder for use in a photographic camera for automatically focusing an image of a target object on a predetermined image plane. The system utilizes an electro-optical spatial filter having at least two photoresponsive elements to find ... | 06/24/1980 |
| 4168524 | Airborne surveying apparatus and method A method and apparatus for surveying ground terrain from an airborne vehicle is disclosed. According to the method and apparatus, an inertial measurement unit, a position tracking device, and a terrain altimeter are carried by the airborne vehicle in a kn... | 09/18/1979 |
| 4071772 | Apparatus for measurement of mechanical aberrations affecting stereoscopic image analysis Apparatus to automatically analyze stereoscopic images comprising the determination of the maximum degree of correlation between two similar images of the same object projected by two objectives, for instance in a rangefinder, wherein the two images are s... | 01/31/1978 |
| 3961851 | Passive stereovision range finder A passive mobile rangefinder and stereo viewer having at least two image verting television cameras each mounted on spaced apart, remotely controlled mobile supports with synchronous drives for azimuth and elevation control. Ranging components associated... | 06/08/1976 |
