Class / Patent application number | Description | Number of patent applications / Date published |
356622000 | Position of detected arrangement relative to projected beam | 29 |
20080218772 | WAFER HOLDING ROBOT END EFFECTER VERTICAL POSITION DETERMINATION IN ION IMPLANTER SYSTEM - A wafer handling robot, ion implanter system including a wafer handling robot and a related method are disclosed. An ion implanter system may include an ion implanting station including a load lock coupled thereto; a wafer handling robot located at least partially within the load lock, the wafer handling robot including an end effecter for handling at least one wafer, and a motor for moving the end effecter vertically; and a sensor positioned within the load lock to determine a vertical position of the end effecter. | 09-11-2008 |
20080225304 | Optical scanning unit and image forming apparatus using same - An optical scanning unit includes first and second light beam generators, a deflector, a beam detector, and an optical element. The first and second light beam generators respectively emit a first and second light beam. The deflector deflects the first and second light beams in a main scanning direction and to scan a surface of first and second photosensitive members using the first and second light beams respectively. The beam detector detects both of the first and second light beams deflected by the deflector. The beam detector detects a light beam position of the first and second light beams in a sub-scanning direction. The optical element is disposed along an optical path for the first and second light beams starting from the first and second light beam generators to the deflector to set a light incoming angle striking the deflector same for the first and second light beams. | 09-18-2008 |
20080231867 | Mechanism for positioning device - The present invention relates to a positioning device, and in particular to a mechanism using an image detecting module. The present invention comprises a base having an image detecting module, a control circuit, and a driving module therein. The base has a rotateable plate on the base for carrying an object. The base further has a light pervious area for receiving a light beam coming from a remote control. A convex reflector is located within the base to reflect the image to the image detecting module. | 09-25-2008 |
20080259356 | SYSTEM AND METHOD FOR DETECTING THE DISPLACEMENT OF A PLURALITY OF MICRO- AND NANOMECHANICAL ELEMENTS, SUCH AS MICRO-CANTILEVERS - The invention relates to a system and method for detecting the displacement, such as the deflection, of a plurality of elements ( | 10-23-2008 |
20090027694 | COORDINATE DETECTION APPARATUS AND METHOD, AND COMPUTER PROGRAM - A coordinate detection apparatus has a light projecting unit and light receiving unit, detects abnormal light based on the output from the light receiving unit in a state in which the light projecting unit does not project any light, and detects the coordinates of a light-shielded position based on the output from the light receiving unit in a state in which the light projecting unit projects light. | 01-29-2009 |
20090073461 | Waveguide and Optical Motion Sensor Using Optical Power Modulation - An optical motion sensing device included a sensor frame defining an opening, a sensor pad disposed in the opening, an optical sensing system adapted to detect an amount of movement of the sensor pad in the sensor frame, and an output unit. The optical sensing system includes an optical waveguide, an optical source device, and an optical detector. The optical waveguide is positioned within the sensor frame such that the movement of the sensor pad results in the flexing or compressing of the optical waveguide. The optical source device supplies optical energy to the optical waveguide. The optical detector detects an amount of optical energy exiting the optical waveguide. The output unit is configured to receive a signal indicative of the amount of optical energy exiting the optical waveguide and to generate a measure of the amount of movement of the sensor pad from the received signal. | 03-19-2009 |
20090116039 | PLANE POSITION DETECTING APPARATUS, EXPOSURE APPARATUS AND DEVICE MANUFACTURING METHOD - A surface position detecting apparatus is arranged to be able to detect a surface position of a detection target surface with high accuracy, while restraining influence of a relative positional deviation between polarization components in a beam totally reflected on an internal reflection surface of a prism member, on detection of the surface position of the detection target surface. At least one of a light projection system and a light reception system is provided with a total reflection prism member ( | 05-07-2009 |
20090135437 | AUTOFOCUS SYSTEM WITH ERROR COMPENSATION - An autofocus system ( | 05-28-2009 |
20090195792 | Optical position measuring arrangement - An optical position measuring arrangement for the generation of n>1 phase-shifted incremental signals characterizing relative positions of two objects which are movable with respect to each other along a measuring direction. The optical position measuring arrangement includes a light source that emits bundles of beams, a measurement grating, a plurality of optional gratings and a scanning unit. The scanning unit includes a scanning grating arranged in a scanning plane, wherein the scanning grating includes a plurality of blocks arranged periodically along the measuring direction with a scanning grating periodicity TP | 08-06-2009 |
20100033734 | Vehicle frame deformation measurement apparatus and method - An apparatus and method are provided for indicating deformation of a vehicle body when the vehicle body has reference points and a normal position thereof. The apparatus and method comprising the use of at least one target positioned at a predetermined location relative to the reference point on the vehicle body. The target is adapted to provide information indicating the position of the target relative to said normal position thereof when a laser scanner sweeps a laser beam across the target to activate the target and provide target location information. A computer is provided for receiving the target location information and calculating the position of the target relative to normal position. The laser source of the laser scanner is a Diode Pumped Solid State (DPSS) laser to provide stable beam output and prevent beam drift to prove a more accurate measurement. | 02-11-2010 |
20100103431 | Determining Positions - The position of a movable element such as the end of a robot arm ( | 04-29-2010 |
20100141966 | Cortesian coordinate measurement for rotating system - In a measurement device for measuring a peripheral position in a Cartesian coordinate system, a rotating laser source is configured to emit a laser beam along a radius of a rotator. A reflector is configured to reflect the laser beam in a direction orthogonal to a path of the laser beam, and a scale having a pattern of transparent and reflective areas is positioned at a peripheral position of the measurement device. A detector is configured to provide a sequence of pulses by detecting a reflex or transmission of the rotating laser beam while the laser scans over the scale. The sequence of pulses correspond to Cartesian coordinates of the system. | 06-10-2010 |
20100149553 | Method and Apparatus for Determining Sheet Position During Production and Handling - A method for determining a position of a selected area of a sheet of material relative to a reference plane includes launching a first incident light beam at the selected area of the sheet of material such that the first incident light beam strikes the selected area at a first position and a first angle, thereby producing a first reflected light beam. A second incident light beam is launched at the selected area of the sheet of material such that the second incident light beam strikes the selected area at a second position and a second angle, thereby producing a second reflected light beam. The second position and second angle are different from the first position and first angle, respectively. The first reflected light beam and the second reflected light beam are intercepted at the reference plane. Information related to positions at which the reflected light beams were intercepted and angles at which the incident light beams were launched were received and correlated to the position of the selected area relative to the reference plane. | 06-17-2010 |
20100245849 | OPTICAL SENSOR OPERATING ON THE TRANSIT TIME PRINCIPLE - The present invention relates to an optical sensor based on the transit time principle, comprising a light source for the emission of emergent light pulses into an observed region, comprising a rotating device for rotating a beam direction of the emergent light pulses about a rotation axis orientated transverse to the beam direction, and comprising a detector for the detection of light pulses reflected by objects in the observed region, comprising a housing for keeping the sensor interior separate from the environment and including a partitioning screen that is transparent to the emergent light pulses and to the reflected light pulses, comprising a test device for testing the translucence of the partitioning screen, and comprising a control and evaluation unit for controlling the light source, for evaluating the light pulses detected by the detector, and for determining the distance away of an object on the basis of the measured transit time of the light pulses, which control and evaluation unit cooperates with the test device. The optical sensor is characterized in that at least one test detector is provided in the sensor interior to form part of the test device, which test detector is placed on a rotor adapted to rotate about the rotation axis, that the test detector is oriented toward those throughput regions of the partitioning screen through which the emergent light pulses and/or the reflected light pulses pass, that a test light source for supplying the test light is provided as a further part of the test device, which test light source is likewise arranged on the rotor, that outside the housing there is provided at least one reflector element to which the test light is directed, and that the test detector is positioned such that it can detect the test light reflected by the reflector element. | 09-30-2010 |
20100302557 | METHOD FOR DETERMINING POSITION, LASER BEAM DETECTOR AND DETECTOR-REFLECTOR DEVICE FOR A SYSTEM FOR DETERMINING POSITION - The invention relates to a system for determining a position by emitting a first laser beam ( | 12-02-2010 |
20110001987 | Variable Color Incoherent Alignment Line and Cross-Hair Generator - An alignment device includes an incoherent light source, a first convex lens, a mirror rod, and a second convex lens. The incoherent light source emits incoherent light that is received by the first convex lens that produces a low divergence light beam. The low divergence light beam is directed to the mirror rod that reflects the light beam to the second convex lens that focuses the light beam to a convergent light beam. | 01-06-2011 |
20110007327 | LASER-BASED COORDINATE MEASURING DEVICE AND LASER-BASED METHOD FOR MEASURING COORDINATES - A laser based coordinate measuring device measures a position of a remote target. The laser based coordinate measuring device includes a stationary portion, a rotatable portion, and at least a first optical fiber. The stationary portion has at least a first laser radiation source and at least a first optical detector, and the rotatable portion is rotatable with respect to the stationary portion. The first optical fiber system, which optically interconnects the first laser radiation source and the first optical detector with an emission end of the first optical fiber system, has the emission end disposed on the rotatable portion. The emission end emits laser radiation to the remote target and receives laser radiation reflected from the remote target with the emission direction of the laser radiation being controlled according to the rotation of the rotatable portion. | 01-13-2011 |
20110026041 | Position measuring arrangement - A position measuring arrangement that includes a retroreflector, a light source generating a lightbeam and a scanning unit that receives the lightbeam and generates a partially-divergent lightbeam. The scanning unit includes a scanning mirror that is mounted so it can be deflected in a reproducible manner around two different rotating axes that cross each other in a center of the scanning mirror so that a grid-like scanning of a two-dimensional spatial area by the partially-divergent lightbeam, in relation to which the retroreflector is arranged, takes place over a plurality of scanning tracks. The position measuring arrangement further including an interferometric distance measuring unit that includes a beam splitter element that splits the lightbeam generated by the light source in such a way that split lightbeams pass through a reference arm and a measuring arm at least once in each direction. The interferometric distance measuring unit includes an opto-electronic detector unit, through which a detection of distance-dependent signals from superimposed lightbeams from the reference arm and the measuring arm takes place when, at a time of optical contact between the scanning unit and the retroreflector, a back reflection of the lightbeam from the retroreflector in a direction of the scanning unit results. | 02-03-2011 |
20110149301 | Beam position measuring apparatus and method - A beam position measuring apparatus and method using a beam expansion device may expand areas of beams irradiated onto a beam detection sensor. The beam expansion device is configured to expand areas of the beams onto the beam detection sensor is installed between a beam generator and the beam detection sensor. Central positions of the irradiated beams are detected using intensities of beams irradiated onto respective pixels of the beam detection sensor. | 06-23-2011 |
20110249275 | OPTICAL GRID FOR HIGH PRECISION AND HIGH RESOLUTION METHOD OF WAFER-SCALE NANOFABRICATION - A wafer-scale nano-metrology system ( | 10-13-2011 |
20120002217 | COORDINATE INPUT APPARATUS, LIGHT RECEIVING APPARATUS OF THE COORDINATE INPUT APPARATUS, AND MANUFACTURING METHOD OF THE SAME - A light receiving unit of a coordinate input apparatus includes a light receiving element, a light receiving lens, an adjusting unit for adjusting the positional relationship between the light receiving element and light receiving lens, and a light transmissive plate which is arranged between the light receiving element and light receiving lens, and defines the focal length of the light receiving lens. The light transmissive plate is arranged between the light receiving element and light receiving lens in a state in which the optical axis between the light receiving element and light receiving lens is adjusted by the adjusting unit with the light transmissive plate being removed. | 01-05-2012 |
20120206735 | WIDEBAND OPTICAL POSITION SENSOR WITH NORMALIZATION - A novel electro-optical sensor for the wideband and normalized translation of the two-dimensional position of a light beam transverse to its traveling direction into electrical position signals. Incident on the sensor is the light beam | 08-16-2012 |
20120229818 | HIGH-RESOLUTION OPTICAL POSITION SENSING WITH SPARSE, LOW-RESOLUTION DETECTORS - High-resolution optical position sensing is disclosed using sparse, low-resolution detectors. Precise location of two-dimensional position or angular orientation of an optical beam at the focal plane of a sensor system is made possible using sparse low-resolution detectors. The beam may be emitted directly from a source, or scattered from a remote target. The high precision in determining the beam or focal spot location is the result of a novel data processing and analysis method for the signals from the low-resolution detectors. | 09-13-2012 |
20120262732 | METHODS AND SYSTEMS FOR MEASURING OPENINGS USING PHOTOGRAMMETRY - Method and system for measuring an opening at least partially defined by a surface. A plurality of target bodies are positioned about a circumference of a target body holder that is sized to fit within the opening. The target bodies are forced radially outward to cause at least one of the target bodies to be positioned against the surface. A geometric property of the opening is determined based at least partially on a location of at least one of the target bodies positioned against the surface. | 10-18-2012 |
20120287443 | SENSING METHOD AND DEVICE - A sensing method and device for sensing the position of an object are provided. The sensing device comprises a light source for generating a plane light, and a sensor unit disposed at one side of the light source. The sensing method comprises driving the light source to generate the plane light, forming a reflective light distribution by the object reflecting the plane light; and estimating a relative distance between the object and the light source according to the reflective light distribution. | 11-15-2012 |
20140211216 | Projector and Projector System - A projector includes a projection portion including a laser beam generation portion and a scanning portion scanning a laser beam, projecting an image, a light detection sensor provided separately from the projection portion, including a light receiving portion receiving the laser beam reflected by a detection object, and a control portion acquiring the position of the detection object on the image on the basis of a detection result of the laser beam. | 07-31-2014 |
20160003608 | METHOD FOR DETERMINING THE ALIGNMENT OF A LASER LIGHT BEAM REFERRED TO AN AXIS OF ROTATION OF A DEVICE THAT IS ROTATABLE AROUND THE AXIS OF ROTATION AND LASER LIGHT DETECTION DEVICE - The invention relates to a method for determining the alignment of a laser light beam ( | 01-07-2016 |
20160076877 | POSITION MEASURING DEVICE - A position measuring device of the invention includes a light emitter configured to emit a laser light, a hologram configured to generate a reconstructed image of an inclined surface relative to an optical axis, a light receiver disposed on a reconstructed image forming surface of the hologram, and a measurement unit configured to measure a position of an object based on a position of light received by the light receiver. In the position measuring device of the invention, the light emitter may emit a linear laser light and the light receiver may include an image sensor having a two-dimensional array of pixels. | 03-17-2016 |
20170235014 | SYSTEM, DEVICE, AND METHOD FOR MONITORING AND CONTROLLING THE POSITION OF A REMOTE OBJECT | 08-17-2017 |