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| Number | Title | Issue Date |
| 8059267 | Orientation dependent radiation source and methods Improvements to the art of orientation measurement are disclosed whereby the phase angle of each of the plurality of orientation dependent radiation patterns is measured at a single common and unique point of measurement on the observation surface and correspondingl... | 11/15/2011 |
| 7583374 | Measurement method and measurement apparatus using tracking type laser interferometer A tracking type laser interferometer including: a retro-reflector 20 for reflecting incident measurement light and returning the same in the incident direction and a main body 10 having means for emitting measurement light, means 30 for receivin... | 09/01/2009 |
| 7515257 | Short-range/long-range integrated target (SLIT) for video guidance sensor rendezvous and docking A laser target reflector assembly for mounting upon spacecraft having a long-range reflector array formed from a plurality of unfiltered light reflectors embedded in an array pattern upon a hemispherical reflector disposed upon a mounting plate. The reflector assemb... | 04/07/2009 |
| 7456944 | Apparatus and method for detection of optical systems in a terrain area An apparatus for detection of optical systems in a terrain area, has at least: a laser arrangement with a laser light source, a moving mirror for scanning the terrain area and a photoelement for detection of retroreflected laser radiation from the laser light... | 11/25/2008 |
| 7388654 | Retroreflector covered by window Embodiments may comprise methods, apparatuses, systems, and one or more computer-readable media having computer-readable instructions thereon for adjusting a laser retroreflector to compensate for passing laser light through a window of the retroreflector comprising... | 06/17/2008 |
| 7385684 | Angular position sensor A head tracking system combines a plurality of sources of radiant energy, a plurality of sensors and at least one reflective element. As the reflective element moves, various radiant energy beams become incident thereon. The incident beams are reflected to respectiv... | 06/10/2008 |
| 7331714 | Optomechanical structure for a multifunctional hard x-ray nanoprobe instrument A multifunctional hard x-ray nanoprobe instrument for characterization of nanoscale materials and devices includes a scanning probe mode with a full field transmission mode. The scanning probe mode provides fluorescence spectroscopy and diffraction contrast imaging.... | 02/19/2008 |
| 7312861 | Method and apparatus for measuring the angular orientation between two surfaces A device and method are disclosed that measure the relative angular orientation between two surfaces. Two frames are mounted on the two surfaces to be measured. One frame has a collimated light source and a measuring scale. The other frame has a mirror. The collimat... | 12/25/2007 |
| 7301617 | Surveying apparatus A surveying apparatus including an objective lens; an irradiation unit for irradiating illumination light from the objective lens toward a reflector; a ranging unit for irradiating ranging light from the objective lens to measure a distance from the surveying appara... | 11/27/2007 |
| 7301616 | Method and apparatus for object alignment The present invention relates to a method and apparatus for alignment of two mechanical parts. An inventive measuring device has a housing comprising a light source and a detector for detection of light beams. The light source is capable of transmitting a light beam... | 11/27/2007 |
| 7268865 | Method of detecting foreign objects for display panel fabrication A method of detecting foreign objects in display manufacturing process, wherein the method comprising steps as flows: First a laser source and a laser detector are provided on a first side of a target to be measured, wherein the laser detector is supported by an adj... | 09/11/2007 |
| 7227635 | Device and method for positioning a sample mounted on a glow discharge spectrometer This invention relates to a device and a method for positioning a sample (8) mounted on a glow discharge spectrometer (6). A sample (8) to be analyzed is mounted on the first electrode means (5) of a glow discharge spectrometer (6)... | 06/05/2007 |
| 7227627 | Optical biaxial angle sensor A fast and accurate non-contacting angle sensor. According to one aspect of the described sensor and method of operation thereof, the angular orientation of an inner payload relative to an outer structure is monitored with a 2 axis optical angle sensor for azimuth a... | 06/05/2007 |
| 7193695 | Survey system A survey system for transmitting guide light for instructing the direction of a target, the guide light having a wide range with small power. The survey system includes a target having a recursion reflector for reflecting light and a survey apparatus having an autom... | 03/20/2007 |
| 7184136 | Optical alignment method and system An optical feedback technique is utilized for accurately determining the angular orientation of a collimator relative to an electro-optical (EO) system, and for aligning the two. A mirror assembly mounted on the EO system comprises a plurality of mirror elements pos... | 02/27/2007 |
| 7151596 | Deflection angle detecting device A deflection angle detecting device includes a light source, a path switching plane switching the optical path of part of light radiated from the light source, a detecting reflection surface placed on the optical path switched by the path switching plane and provide... | 12/19/2006 |
| 7148958 | Method and system for measuring height or relatively axial position A pair of rotary laser devices are vertically arranged while aligning their respective axes into a single axis and keeping said rotary laser devices away from each other in an axial direction thereof by a predetermined interval, and a light-receiving sensor is kept ... | 12/12/2006 |
| 7137711 | Multi-user retro reflector data input The apparatus uses retro-reflected light, having a fixed component (41) and a variable component (37) varied by a person, from a retro reflector (31) connected to a person to input data (37A) to an information system (13) and does ... | 11/21/2006 |
| 7110101 | Method and device for determining an angular error and use of the device A method and a device are disclosed for establishing actual changes and intended changes of the spatial angle of a main axis (e) of a sensor or effector attached to a receiver (4.1). The receiver (4.1) is directly rotatable around the first axis of rot... | 09/19/2006 |
| 7101053 | Multidirectional retroreflectors Multidirectional retroreflectors and methods of reflecting light beams from multiple directions are provided. The multidirectional retroreflectors utilize a four-mirror retroreflector with a common virtual reflection point. ... | 09/05/2006 |
| 7079259 | Optical alignment for a multi-mirror telescope A primary mirror 22 defines an active concave surface 24, a first planar 40 and a first concave 42 alignment surfaces, each facing an active surface 30 defined by a secondary mirror 28. The secondary mirror also defines a se... | 07/18/2006 |
| 7066035 | Torque measuring device for rotating body A torque measuring device for a rotating body comprises: a rotary section composed of first and second flanges to be joined respectively to driving and driven shafts, and a hollow cylinder having the first and second flanges formed respectively on both edges thereof... | 06/27/2006 |
| 6862086 | Angle detecting apparatus and projector having the same In an angle detecting apparatus and projector using range finder units, range finding calculations are performed in plural directions using line type passive range finders as the range finding units. An average value of inclination angles calculated based on the ran... | 03/01/2005 |
| 6822733 | Optical design for laser encoder resolution extension with three-dimensional motion decoupling An optical system is provided for laser encoder resolution extension with three-dimensional motion decoupling capability. The optical system includes a first prism mounted on a moving target, and a plurality of prisms, a retroreflector, a laser source, and a detecto... | 11/23/2004 |
| 6775013 | Method and apparatus for measuring displacement or motion error The degree to which a rotating object like a machine tool spindle undesirably wobbles in directions both transverse and parallel to its axis of rotation is measured preferably by providing a laser beam or other beam energy source which directs the beam toward a beam... | 08/10/2004 |
| 6674521 | Optical method and system for rapidly measuring relative angular alignment of flat surfaces A reconfigurable optical method and system for rapidly measuring relative angular alignment of flat surfaces are provided. The method and system can be used to rapidly and simultaneously measure the relative angular alignment of machined flat surfaces of ... | 01/06/2004 |
| 6655215 | Inverse corner cube for non-intrusive three axis vibration measurement A non-intrusive apparatus and method for measuring vibration of an object along three axes. A vibration measurement device is provided which has three orthogonal right triangular panels forming a pyramidal shape having three 90° angled corners which meet... | 12/02/2003 |
| 6603539 | Method for detecting the spatial position of a tracking mirror and a mirror arrangement for carrying out said method In a laser tracking system equipped for interferometric distance measurement there are provided at least two retroreflectors (3.1, 3.2, 3.3) which are connected to the target tracking mirror (1) in a manner such that their position changes when the spatia... | 08/05/2003 |
| 6472656 | Device for measuring torque of rotating body and method for measuring torque A sensor with a strain gage 106 is disposed on an inner circumferential surface of a distortion generating body 100 which is a half-blindly hollowed cylinder having a prescribed thickness and diameter between a driving flange 101 to be fixed to a rotating... | 10/29/2002 |
| 6460004 | Method and apparatus for calibrating a non-contact gauging sensor with respect to an external coordinate system A calibration system is provided for calibrating a sensor with respect to an external reference frame associated with manufacturing gauging station. A target calibration device is positioned at a vantage point to detect and calibrate its reference frame i... | 10/01/2002 |
| 6384908 | Orientation dependent radiation source Methods and apparatus for producing orientation dependent radiation, and orientation detection systems are disclosed. An orientation dependent radiation source directs radiation to an observation area and facilitates a determination of the orientation of ... | 05/07/2002 |
| 6384907 | Optical target and apparatus and method for automatic identification thereof An optical target (1) including a positioning sub target (2) for determining position, and a plurality of identifying sub targets (3) for identifying one optical target (1) from another, each of which plurality of identifying sub targets (3) is a differen... | 05/07/2002 |
| 6356348 | Device for ascertaining the relative position of a reference axis of an object relative to a reference beam, in particular a laser beam A device is proposed, which makes it possible to ascertain the relative position of the reference axis BA of an object relative to a reference beam Rp of an electromagnetic radiation, in particular a laser beam. The device displays a spatially ... | 03/12/2002 |
| 6266136 | Position 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... | 07/24/2001 |
| 6137569 | Survey instrument The present invention provides a survey instrument, which comprises a solid state image sensor 4 where an image from a telescope is formed, an emitter 6 for emitting flash light toward a target, and a survey controller for detecting position of the center... | 10/24/2000 |
| 6134507 | Method and apparatus for calibrating a non-contact gauging sensor with respect to an external coordinate system The laser tracker is positioned at a vantage point to detect and calibrate its reference frame to the external reference frame demarcated by light-reflecting retro reflector. A tetrahedron framework with retro reflector mounted on one of the vertices serv... | 10/17/2000 |
| 6072572 | Common aperture multi-sensor boresight mechanism A boresight mechanism 10 incorporating internal boresight target generator 28 to generate a boresight target signal for properly aligning first and second sensors 22, 24. Beam splitter 52 and corner reflector 60 are positioned along optical path 100 such ... | 06/06/2000 |
| 6046799 | Device for ascertaining misalignments of two shafts arranged one behind the other A device for ascertaining misalignments of two shafts (1, 2) arranged one behind the other has a light emitter (6) rigidly fixed on one shaft (1) and which transmits in a manner known per se an alignment measurement beam (F) onto a detector surface (8a) o... | 04/04/2000 |
| 6043873 | Position 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... | 03/28/2000 |
| 6040903 | Electro-optical measuring device for determining the relative position of two bodies, or of two surface areas of bodies, in relation to each other Proposed for detecting the relative position of two bodies (2, 3) or surface regions of bodies is an electro-optical measuring instrument which has, in a known way, a light beam transmitter (4), which can be attached to the one body (3) or surface region ... | 03/21/2000 |
