NIKON METROLOGY N.V. Patent applications |
Patent application number | Title | Published |
20160030133 | REGISTRATION OBJECT, CORRECTION METHOD AND APPARATUS FOR COMPUTED RADIOGRAPHIC TOMOGRAPHY - Disclosed is a registration object for computed radiographic tomography. The object has a body portion defining a void for including at least part of a target object. The registration object comprises one or more relatively radiopaque or relatively radiolucent features. Said feature or features provide, in a suitable proportion of radiographic projections of the registration object with respect to angle about a predetermined axis, a pair of identifiable registration points which are spaced apart in a direction parallel to the predetermined axis by a first distance, and whose positions in that direction are each either a constant or a function only of the angle of the projection about the predetermined axis. Said feature or features define, in the suitable proportion of radiographic projections of the object with respect to angle about a predetermined axis, a pair of identifiable registration points which are spaced apart in a direction perpendicular to the predetermined axis by a second distance whose positions in that direction are each either a constant or a continuous function only of the angle of the projection about the predetermined axis. The suitable proportion can be substantially all or all radiographic projections. Also disclosed are a method, an apparatus, a storage medium and a signal for correcting computerised radiographic tomography data, optionally using such an object. | 02-04-2016 |
20150377606 | PROJECTION SYSTEM - The present invention relates to a metrology system ( | 12-31-2015 |
20150355327 | SCAN MIRRORS FOR LASER RADAR - Laser radar systems include a pentaprism configured to scan a measurement beam with respect to a target surface. A focusing optical assembly includes a corner cube that is used to adjust measurement beam focus. Target distance is estimated based on heterodyne frequencies between a return beam and a local oscillator beam. The local oscillator beam is configured to propagate to and from the focusing optical assembly before mixing with the return beam. In some examples, heterodyne frequencies are calibrated with respect to target distance using a Fabry-Perot interferometer having mirrors fixed to a lithium aluminosilicate glass-ceramic tube. | 12-10-2015 |
20150268344 | RADAR SYSTEMS WITH DUAL FIBER COUPLED LASERS - Laser radar systems include a pentaprism configured to scan a measurement beam with respect to a target surface. A focusing optical assembly includes a corner cube that is used to adjust measurement beam focus. Target distance is estimated based on heterodyne frequencies between a return beam and a local oscillator beam. The local oscillator beam is configured to propagate to and from the focusing optical assembly before mixing with the return beam. In some examples, heterodyne frequencies are calibrated with respect to target distance using a Fabry-Perot interferometer having mirrors fixed to a lithium aluminosilicate glass-ceramic tube. | 09-24-2015 |
20150177379 | LASER RADAR WITH REMOTE LOCAL OSCILLATOR - Laser radar systems include a pentaprism configured to scan a measurement beam with respect to a target surface. A focusing optical assembly includes a corner cube that is used to adjust measurement beam focus. Target distance is estimated based on heterodyne frequencies between a return beam and a local oscillator beam. The local oscillator beam is configured to propagate to and from the focusing optical assembly before mixing with the return beam. In some examples, heterodyne frequencies are calibrated with respect to target distance using a Fabry-Perot interferometer having mirrors fixed to a lithium aluminosilicate glass-ceramic tube. | 06-25-2015 |
20140204363 | LOW DRIFT REFERENCE FOR LASER RADAR - Laser radar systems include a pentaprism configured to scan a measurement beam with respect to a target surface. A focusing optical assembly includes a corner cube that is used to adjust measurement beam focus. Target distance is estimated based on heterodyne frequencies between a return beam and a local oscillator beam. The local oscillator beam is configured to propagate to and from the focusing optical assembly before mixing with the return beam. In some examples, heterodyne frequencies are calibrated with respect to target distance using a Fabry-Perot interferometer having mirrors fixed to a lithium aluminosilicate glass-ceramic tube. | 07-24-2014 |
20140043622 | SYSTEM FOR MEASURING THE POSITION AND MOVEMENT OF AN OBJECT - The disclosure relates to a system for measuring the position of an object in a measurement volume, including: an optical angular measurement device, disposed with static optics, configured for measurement of the an azimuth and elevation angle of the object in the measurement volume with respect to the optical angular measurement device, a range measurement device, disposed with static component, configured for measurement of the range of the object in the measurement volume. It further relates to a use of the system and a measurement method. | 02-13-2014 |
20130202727 | IMAGE FORMING OPTICAL SYSTEM, IMAGING APPARATUS, PROFILE MEASURING APPARATUS, STRUCTURE MANUFACTURING SYSTEM AND STRUCTURE MANUFACTURING METHOD - There is provided a measuring apparatus including: an imaging optical system configured to form an image of an object to be measured; and an imaging section including a transmissive member which is arranged in the vicinity of an image plane of the imaging optical system to be inclined with respect an optical axis of the imaging optical system. The imaging optical system includes a first optical member which is non-coaxial with respect to the optical axis. | 08-08-2013 |
20110205523 | COMPACT FIBER OPTIC GEOMETRY FOR A COUNTER CHIRP FMCW COHERENT LASER RADAR - A system and method for determining a measured distance between a measuring device ( | 08-25-2011 |