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| Number | Title | Issue Date |
| 6239426 | Scanning probe and scanning probe microscope An easy to use scanning probe instrument such as a microscope or memory device is provided with a probe which does not require optical alignment. The scanning probe is a cantilever probe adapted to undergo relative movement with respect to an object such ... | 05/29/2001 |
| 6233049 | Three-dimensional measurement apparatus A three-dimensional measurement device employs a slit ray projection technique to optically determine a three-dimensional image. The device offers a choice in operating modes between high-speed measurement, high-resolution measurement and large dynamic ra... | 05/15/2001 |
| 6232595 | Position detecting apparatus In a position detecting apparatus which detects an absolute position by A/D converting sinusoidal and cosinusoidal signals and performing interpolation, a phase error between the signals which is caused by movement of a detection object during the A/D con... | 05/15/2001 |
| 6229608 | Procedure and system for inspecting a component with leads to determine its fitness for assembly Procedure and system for inspecting a component (1) with leads to determine its fitness for assembly before the component is placed on a circuit board. A narrow illuminating beam (10) is directed from a light source (9) at a light-sensitive detector (11).... | 05/08/2001 |
| 6177998 | Method and system for high speed measuring of microscopic targets A system including confocal and triangulation-based scanners or subsystems provides data which is both acquired and processed under the control of a control algorithm to obtain information such as dimensional information about microscopic targets which ma... | 01/23/2001 |
| 6177999 | Dimensioning system The present invention provides a dimensioning system for determining the minimum size box necessary to enclose an object traveling on a moving conveyor. The dimensioning system is comprised of a light source which generates a scan beam that is moved by a ... | 01/23/2001 |
| 6147759 | System for detecting the presence and location of at least one object in a field by using a divergent radiation source and an array of opposed plural detectors which rotate together around the field An apparatus detects the presence and location of at least one object in a field. The apparatus comprises a rotating arm which spins around the field, a position sensor for detecting the angular displacement of the rotating arm relative to a fixed point, ... | 11/14/2000 |
| 6141088 | Method and device for characterizing a modification in time of the state of condensation of droplets on a target An apparatus and method for characterizing a modification of the state of condensation of liquid droplets on a target (10). The apparatus comprises a light transmitting means (20, 21) capable of directing a light beam (42) towards the target (10), a photo... | 10/31/2000 |
| 6141105 | Three-dimensional measuring device and three-dimensional measuring method This invention is related to a three-dimensional measuring device for measuring three-dimensional positions of an objects. The three-dimensional measuring device comprises an optical projection system and an optical reception system. In a preliminary meas... | 10/31/2000 |
| 6137577 | Method and apparatus for measuring dimensions of objects on a conveyor A method and apparatus for measuring the length, width, and height of rectangular solid objects moving on a conveyor. The apparatus includes a light curtain, two laser triangulation range finders, and a pulse tachometer mounted on a frame around a conveyo... | 10/24/2000 |
| 6128071 | Range data recordation Detailed depth information in a three dimensional scene is recorded by a camera with a single lens system (100). In one embodiment, a lens (100) is movably attached to a camera housing (302) such that a motor (304) can move the lens (100) in the direction... | 10/03/2000 |
| 6128585 | Method and apparatus for calibrating a noncontact gauging sensor with respect to an external coordinate system The sensor array is positioned at a vantage point to detect and calibrate its reference frame to the external reference frame demarcated by light-emitting reference indicia. The sensor array encompasses a wide view calibration field and provides data indi... | 10/03/2000 |
| 6122065 | Apparatus and method for detecting surface defects Apparatus and method for detecting surface defects on an article freely standing on a conveyer, which generate profile trace data corresponding to profile trace at a cross-section of the article. A surface shape inspection unit comprising an optical rangi... | 09/19/2000 |
| 6122061 | Optical apparatus for measuring the distance of an object and process for measuring the distance of an object from an optical measuring apparatus The present invention concerns an optical apparatus for measuring the distance of an object and characterized in that it comprises a case, a first converging lens housed in the case, a light source housed in the case and acting through the first convergin... | 09/19/2000 |
| 6122063 | Measuring device and method for contactless determining of the 3-dimensional form of a peripheral groove in a spectacle frame What is described here is a measuring system for the non-contacting detecn of the three-dimensional shape of a groove peripherally extending in a spectacle frame, comprising a light source directing its light beam onto the groove or having its beam defle... | 09/19/2000 |
| 6118538 | Method and apparatus for electronic component lead measurement using light based sensors on a component placement machine The present invention is a light based detection system for providing a low cost, very fast and very accurate measurements of lead positions and heights for integrated circuit board components. The alignment detections systems of the present invention are... | 09/12/2000 |
| 6115128 | Multi-dimensional position sensor using range detectors A small, non-contact optical sensor uses ranges and images to detect its relative position to an object in up to six degrees of freedom. The sensor has three light emitting range detectors which illuminate a target and can be used to determine distance an... | 09/05/2000 |
| 6094269 | Apparatus and method for optically measuring an object surface contour An optical metrology system and method for rapidly and accurately measuring an object surface contour. The optical metrology system measures cross-sections of an object substantially orthogonal to an axis of the object includes a first and second optical ... | 07/25/2000 |
| 6094264 | Method and apparatus for measuring the position of a series of contact pins and for positioning said series in a printed circuit board The method and apparatus comprise a pick-up and insertion head (1) movable along a predetermined direction (Y-axis) between a pick-up area (3) provided for electronic components bearing an array of contact pins (6) and a printed circuit board (20), whereb... | 07/25/2000 |
| 6094270 | Range finder A real-time range finder comprising light sources 12 and 13 for composing a plurality of light beams having different wavelength characteristics and sweeping the traveling direction of the composite light and either the wavelength or intensity of the ligh... | 07/25/2000 |
| 6091498 | Semiconductor processing apparatus having lift and tilt mechanism A lift/tilt assembly for use in a semiconductor wafer processing device is set forth. The lift/tilt assembly includes a linear guide/actuator comprising a fixed frame and a movable frame. A nest for accepting a plurality of semiconductor wafers is rotatab... | 07/18/2000 |
| 6091497 | Sensor and a method for measuring distances to, and/or physical properties of, a medium The invention provides a sensor for sensing the distances to a medium and/or displacements and the physical properties thereof, including a housing, at least one pair of solid light guides each having an input end face and an output end face, at least one... | 07/18/2000 |
| 6091499 | Method and device for automatic relative adjustment of samples in relation to an ellipsometer Normally, repeated calibration measurements are necessary for the adjustment of the sample and ellipsometer. To achieve an automatic relative adjustment, a sample position detection system that can be adjusted in relation to the ellipsometer and locked in... | 07/18/2000 |
| 6088663 | Method for combining physical objects using polar coordinate statistical analysis A method is provided for combining a first physical object and a second physical object. A first locating point is defined on a first physical object, and a first location of the first locating point is determined by taking at least two measurements with ... | 07/11/2000 |
| 6088107 | High resolution positioner The present invention relates to a high resolution positioner that may be used to measure the lateral displacement between one object, such as a beam compactor, relative to another object, such as a rear cone, which are separated over a moderate distance.... | 07/11/2000 |
| 6088106 | Method for the contact-free measurement of the distance of an object according to the principle of laser triangulation A method for the contact-free measurement of the distance of an object according to the principle of laser triangulation, in which a laser beam is directed onto the measuring object and the illuminated region is so imaged on a line-like sensor with prior-... | 07/11/2000 |
| 6084676 | Non-contact non-invasive measuring method and apparatus The distance between an image indicating a measured portion and a measuring apparatus is previously registered, a measured object is arranged in a prescribed space in a non-contact state, the position of a probe is so adjusted that two-dimensional image s... | 07/04/2000 |
| 6034765 | Contactless position and displacement measuring device A contactless position and displacement measuring device includes at least one light source and at least one photosensor adapted to move relative to each other. When illuminated by a light beam emitted by the light source the photosensor generates at leas... | 03/07/2000 |
| 5969820 | Surface position detecting system and exposure apparatus using the same A surface position detecting system for detecting a position of a surface of an object disposed opposed to an exposure system, with respect to a direction of an optical system of the exposure system, includes an irradiation device for projecting light to ... | 10/19/1999 |
| 5933240 | Method and apparatus for determining the distance between a base and a specular surface by means of radiation reflected at the surface The invention relates to a method and an apparatus for determining the distance (h) between a base (1) and a specular surface (2) of an object (3). The method is based on the measurement of the direct reflection of radiation of a first light source (4) by... | 08/03/1999 |
| 5923428 | Method and apparatus for measuring dimensions of objects on a conveyor A method and apparatus for measuring the length, width, and height of rectangular solid objects moving on a conveyor. The apparatus includes a light curtain, two laser triangulation range finders, and a pulse tachometer mounted on a frame around a conveyo... | 07/13/1999 |
| 5923427 | Optical triangulation distance sensing system and method using a position sensitive detector and an automatic power controlled light source A distance sensing system employs an optical triangulation system and a position sensitive device (PSD). The PSD generates a pair of current signals when a target reflects light from a light source back to the surface of the PSD. An automatic power contro... | 07/13/1999 |
| 5905576 | Optical displacement measurement device and optical displacement measurement system A laser diode 11 irradiates an object 3 with beam light modulated in an appropriate cycle. A position detection element 21 outputs a pair of position signals responsive to the position of a light reception spot and a processing section finds a distance to... | 05/18/1999 |
| 5883709 | Inclination monitoring system including reflection of collimated light An inclination monitoring system for monitoring an inclination of a lens having a lens portion and a flange portion surrounding the lens portion with respect to a reference plane. The inclination monitoring system includes a light emitting system which em... | 03/16/1999 |
| 5884239 | Optical system for accurate monitoring of the position and orientation of an object The invention provides an optical system for monitoring the position and orientation of an object in a frame of reference. The system includes at least four light sensors (or light sources) fixed on the object in a non-coplanar arrangement, each producing... | 03/16/1999 |
| 5815272 | Filter for laser gaging system A filter for a laser gaging system that significantly increases the accuracy of the system when measuring scattering or translucent surfaces by reducing deviations caused by skewed speckle patterns. The filter limits the field of view of the sensor to lig... | 09/29/1998 |
| 5777745 | Method and apparatus for compensating for noise generated by fluctuation of a medium around an object to be measured Compensation is performed to eliminate noise generated by fluctuation of a medium that surrounds an object to be measured. First and second laser beams having different wavelengths are generated by a He--Ne laser and a YAG laser, respectively, and are sup... | 07/07/1998 |
| 5745235 | Measuring system for testing the position of a vehicle and sensing device therefore A measuring system for testing the position of a vehicle (1) includes a number of optical beacons (6 and 7), a sensing device (10) which is mounted on the vehicle (1) and which generates a position signal when sensing light reflected from a beacon (65 or ... | 04/28/1998 |
| 5737085 | Precision optical displacement measurement system Apparatus and method for measuring the relative distance between different areas on a remote surface or displacements of a selected area of a remote surface with respect to a measuring apparatus are provided. A laser beam is modulated at an RF frequency a... | 04/07/1998 |
| 5737083 | Multiple-beam optical position sensor for automotive occupant detection An optical sensor system for measuring the approximate three-dimensional profile and position of an object. A reduced to practice embodiment of the optical sensor system has been used to measure the three-dimensional profile and position of an object with... | 04/07/1998 |
