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| Number | Title | Issue Date |
| 8115908 | Position measuring device and position measuring method in semiconductor single crystal manufacturing device While position measurement of an edge position of a thermal shield takes place in a short time with high working efficiency, the edge position can be measured accurately without variation. First determination takes place while a distance is measured with a first sca... | 02/14/2012 |
| 7679725 | Cargo dimensional and weight analyzing system A laser scanner apparatus is disclosed herein for measuring the geometry and physical dimensions of one or more objects in a specified location or platform. The specified location or platform is within a range less than a predetermined maximum object distance. The l... | 03/16/2010 |
| 7411660 | Laser straight ruler and method for measuring distance and projecting line using the straight ruler A laser straight ruler having a main body and a beam scanner installed on the main body. A laser beam is scanned to form a beam spot on an object. A position sensing device receives a laser beam reflected by the object and senses a position of the beam spot. A signa... | 08/12/2008 |
| 7372580 | Three-dimensional shape detecting device, three-dimensional shape detecting system, and three-dimensional shape detecting program In a three-dimensional shape detecting system comprising a three-dimensional shape detecting device and an external calculating device, the three-dimensional shape detecting device includes: projection means which projects pattern light onto a subject; image data ob... | 05/13/2008 |
| 7339148 | Confocal microscope A scanning optical microscope including: a light source; a lens for altering the cross-sectional shape aspect ratio of a beam of light emitted from the light source; at least one lens for converging beams of light of different cross-sectional shape aspect ratio to c... | 03/04/2008 |
| 7333181 | Methods for the use and manufacture of infrared position sensing detector focal plane arrays for optical tracking A Sensor Chip Assembly (SCA) contains a focal plane array constructed as a semiconductor chip sandwich. One slice contains an array of PSDs made from IR sensitive semiconductor material, and the other slice contains Trans Impedance Amplifiers (TIAs)—and associated... | 02/19/2008 |
| 7315794 | Timber survey process and apparatus A timer survey system performing the steps of: placing a first reference point and a second reference point on a tree trunk, wherein an actual distance between the first reference point and the second reference point is a known distance, “A1”; capturi... | 01/01/2008 |
| 7230724 | Three-dimensional measuring apparatus for scanning an object and a measurement head of a three-dimensional measuring apparatus and method of using the same An improved three-dimensional (3D) measuring apparatus for scanning an object and a measurement head of a measuring apparatus and a method for using the measuring apparatus for scanning an object. ... | 06/12/2007 |
| 7227977 | Lighting correction for the outdoor environment with extension to the self adjusting algorithm for general lighting conditions Systems and methods for identifying an object, such as a human face, are described. The systems and methods obtain parameters indicative of direct light and disperse light illuminating the object. Using these parameters, an albedo of the object is computed. The albe... | 06/05/2007 |
| 7161664 | Apparatus and method for optical determination of intermediate distances An apparatus and a method are disclosed for optically determining a distance r to a feature from an origin or a center. The apparatus uses a beam generation unit for launching a reference beam on a reference path and a first beam on a first path. The center from whi... | 01/09/2007 |
| 7115852 | Photodetection device for rotary laser system A photodetection device for a rotary laser system for projecting at least two fan-shaped beams tilted at a known angle with respect to a horizontal plane and having a known spreading angle, comprising at least three photodetectors arranged in a known relationship. | 10/03/2006 |
| 7075661 | Apparatus and method for obtaining three-dimensional positional data from a two-dimensional captured image Methods and apparatus for introducing a plurality of optical markers to a field of view, capturing a two-dimensional image of said field of view on an image plate comprising a pixel array, determining a set of marker origin offset values and using said offset values... | 07/11/2006 |
| 7013234 | Simplified construction site layout method and apparatus A method and apparatus which enables an individual user to determine corners and other points of interest in a construction site layout. Basic trigonometric calculations are made based on a dimensioned drawing which enables corners or other points of interest to be ... | 03/14/2006 |
| 6947820 | Construction machine control system The present invention provides a solution that enables a single rotary laser apparatus to control more than one construction machines so that the construction machines can simultaneously level the terrain up or down to different elevations, respectively. A construct... | 09/20/2005 |
| 6930784 | Apparatus and method for showing contour lines in modeling An apparatus for depicting contour lines on the surfaces of a model, the apparatus comprising a bed for supporting the model, and at least one laser for projecting a plane of light at a predetermine height from the bed. A method of depicting contour lines on surface... | 08/16/2005 |
| 6927862 | Three-dimensional shape and color detecting apparatus A three-dimensional shape and color detecting apparatus that detects a three-dimensional shape of an object and a color thereof is provided with an illuminating system that emits light to illuminate the object, and a light receiving device that receives a reflected ... | 08/09/2005 |
| 6741082 | Distance information obtaining apparatus and distance information obtaining method A distance information obtaining apparatus for obtaining information of a distance from a measurement-start point to an object, includes: a light beam emitting unit for emitting a light beam; a light beam scanning unit for scanning the object with the light beam in ... | 05/25/2004 |
| 6665595 | Device for transmitting optical data There is provided a device for transmitting optical data installed in an automated guided vehicle and a plurality of manufacturing machines which are arranged on a manufacturing line so as to transmit data necessary for delivery of a transfer object by tw... | 12/16/2003 |
| 6647632 | Position measuring apparatus A position measuring apparatus for an alignment of an array of devices such as a thin film magnetic heads on a semiconductor wafer with a high degree of accuracy and satisfactory reproducibility, comprising, on a base, an object holding unit on which an o... | 11/18/2003 |
| 6483106 | Rotary laser irradiating system and object reflector for the same The present invention provides a rotary laser irradiating system, which comprises a laser light source, a range-finding unit, a rotator for irradiating a laser beam from the laser light source and a range-finding light from the range-finding unit onto a r... | 11/19/2002 |
| 6433856 | Method and apparatus for measuring position of object for vehicle In a method, the light beams of two separated optical radar units (each of which are capable of emitting light pulses in a direction and receiving light pulses from the same direction) are directed to a point. The first optical radar unit emits a light pu... | 08/13/2002 |
| 6424422 | Three-dimensional input device A three-dimensional input device including a light projecting device for projecting detection light, and an image sensing device for receiving the detection light reflected by an object and converting the received light to electrical signals. The detectio... | 07/23/2002 |
| 6421132 | Method and apparatus for rapid range imaging A method of range imaging a scene includes directing a planar light beam onto a first portion of the scene, receiving a first reflected light stripe from that portion of the light beam on a row of sensors which emit responsive electrical signals. The firs... | 07/16/2002 |
| 6377905 | Method and arrangement for monitoring objects The present invention relates to methods and to arrangements for monitoring an object which emits a rotating or oscillating beam whose angular velocity is unknown. The time points at which the beam passes a predetermined number of measuring positions are ... | 04/23/2002 |
| 6246502 | Optical scanning apparatus An optical scanning apparatus RD scans a laser beam and detects a foregoing vehicle FC present in a forward direction by a reflected beam derived from the laser beam. The apparatus includes a first mode for emitting a narrowed laser beam and a widened las... | 06/12/2001 |
| 6172742 | Reference irradiation beam detecting apparatus Conventional reference beam detecting apparatus require the use of transits and levels in addition to the reference beam detecting apparatus itself to make the operation of determining the height of construction very cumbersome. A reference beam detecting... | 01/09/2001 |
| 6147746 | Process for optical measurement of relative angles To calculate the distance and angle of a measuring platform with respect to reference marks, fans of light are emitted from the measuring platform by light emitters. The light emitters are therefore arranged on a circular path about the central axis to ro... | 11/14/2000 |
| 5910767 | Intruder detector system A light beam, preferably from a laser, is reflected from a target, which is a potential intruder. The time period required for the beam to return to a light detector, as well as the intensity of the reflected light, is recorded. The system includes a comp... | 06/08/1999 |
| 5838428 | System and method for high resolution range imaging with split light source and pattern mask A high-resolution range imaging system and method can sense the presence of and determine the position or range of each point on the surface of an object through triangulation calculation methods. A moving pattern of light is projected onto the object to ... | 11/17/1998 |
| 5781269 | Distance measuring method and distance sensor A light having a single wavelength which is emitted from a light emitting element comprising a light emitting diode, a semiconductor laser or the like is changed to a parallel light by a collimator lens. The parallel light emitted from the collimator lens... | 07/14/1998 |
| 5717484 | Position detecting system A first light receiving portion and a second light receiving portion are provided on the upper surface of a moving body having driving wheels at an interval of a prescribed distance in a plane. The first light receiving portion and the second light receiv... | 02/10/1998 |
| 5629756 | Laser beam projection apparatus A laser beam projection apparatus is capable of supplying laser beams finely converged on an object at all times irrespective of a distance to the object. The laser beam projection apparatus has a laser beam generator, including a focus adjusting device, ... | 05/13/1997 |
| 5579102 | Transmitter and receiver units for spatial position measurement system Improved transmitter and receiver units for use in spatial measurement system that are easy and inexpensive to manufacture while providing a high degree of reliability are disclosed. Specifically, the laser transmitter includes a laser emitter, a bearing/... | 11/26/1996 |
| 5515156 | Electromagentic wave generating device and a distance measuring device A safety distance measuring device employing an electromagnetic wave is provided. A laser diode 2 is energized to emit laser beams by a laser diode drive circuit 3 in accordance with a clock signal generated by a control circuit 29. The emitted laser beam... | 05/07/1996 |
| 5504569 | Distance-velocity predicting system A distance-velocity predicting system has an illuminator for projecting a light beam for searching for an obstacle, and a plurality of position sensors spaced at a distance corresponding to a base line length. A minimum value of a distance component from ... | 04/02/1996 |
| 5387969 | Machine tool position measurement employing multiple laser distance measurements Positions of the spindles (116-124) of a multi-axis drilling machine (130,132,140,142) are precisely measured by three scanning laser beams (165,167,169). The scanning laser beams are swept in oscillating sweeps across areas of motion of each of three cor... | 02/07/1995 |
| 5367458 | Apparatus and method for identifying scanned reflective anonymous targets A method and apparatus for verifying the identity of an observed anonymous target 16 from a plurality of anonymous reflective targets 16 positioned at predetermined spaced apart locations within an area 14 of operation of an automatic guided vehicle 10 is... | 11/22/1994 |
| 5258822 | System for detecting the position of a moving body A position detection system for a moving body comprising means for rotatively scanning the light beam projected from a light beam generator mounted on the moving body in a substantially horizontal plane, and vibrating to vertically vibrate the rotatively ... | 11/02/1993 |
| 5243397 | Distance measuring system A system for measuring distances between a central location and any number of remote locations. A transmitter at the central location radiates one or two rotating beams which rotate at an angular velocity which need not be determined. Specially placed sen... | 09/07/1993 |
| 5204731 | Method and apparatus for measuring the coordinates of a surveyed point The invention relates to a method and apparatus for measuring the coordinates of a survey point. The apparatus uses a reflecting mirror at the survey point, a tachymeter for transmitting light to the reflecting mirror and for receiving light reflected fro... | 04/20/1993 |
