164220 ⎘
Instruments as specified in the subgroups and characterised by the use of optical measuring means; Interferometers; Reduction or prevention of errors; Testing; Calibration; Active error reduction, i.e. varying with time by electronic control systems, i.e. using feedback acting on optics or light
Sub-classes:LASER TRACKING INTERFEROMETRIC SPATIAL COORDINATE MEASUREMENT SYSTEM AND METHOD BASED ON DUAL ELECTRO-OPTICAL FREQUENCY COMB
#2Distance Measuring Device and Distance Measuring Method
#3REDUNDANT CORE IN MULTICORE OPTICAL FIBER FOR SAFETY
#4MICROSCOPE INCLUDING INTERFEROMETER
#5DETECTION SYSTEM, COMPENSATION METHOD, AND COMPUTER READABLE MEDIUM FOR SEMICONDUCTOR SURFACE MORPHOLOGY
#6DYNAMIC INTERFEROMETER ILLUMINATOR
#7Relative intensity noise Cat's-eye swept source laser for OCT and spectroscopy
#8ABSOLUTE MEASUREMENT METHOD FOR THE PHASE OF THE COMPLEX COHERENCE COEFFICIENT
#9THREE-DIMENSIONAL SHAPE MEASURING DEVICE, REFERENCE SURFACE POSITION ADJUSTMENT METHOD THEREFOR, AND MEASUREMENT MODE SWITCHING METHOD THEREFOR
#10METHOD FOR TESTING AN OCT DEVICE AND TEST OBJECT
#11METHOD OF CALIBRATING OPTICAL COHERENCE TOMOGRAPHY APPARATUS TO MEASURE DEPTH
#12Polarization-separated, phase-shifted interferometer
#13Integrated photonic chip with coherent receiver and variable optical delay for imaging, sensing, and ranging applications
#14Phase cancellation microscopy
#15Digitizer for an optical coherence tomography imager
#16Retro-interferometer having active readjustment
#17Phase delay extraction and compensation method in PGC phase demodulation technology
#18Workpiece processing machine and method for processing a workpiece, in particular by welding
#19Automatic calibration optical interferometer and automatic calibration method of optical interferometer
#20Optical interrogator for performing interferometry using Bragg gratings
#21Light measurement device and optical axis adjustment method
#22Optical coherence tomographic device comprising dual correction beams of different path lengths
#23Calibration for OCT-NIRAF multimodality probe
#24Large range, high resolution interferometer for wide range of sensing applications
#25Arrangement and method of determining properties of a surface and subsurface structures
#26Optical interrogator for performing interferometry using fiber Bragg gratings
#27Coherence-gated wavefront-sensorless adaptive-optics multi-photon microscopy, and associated systems and methods
#28System and method for phase-readout and active stabilization of optical interferometers
#29Ophthalmologic apparatus, and ophthalmologic imaging method
#30AGILE IMAGING SYSTEM
#31Scanning white-light interferometry system for characterization of patterned semiconductor features
#32Imaging apparatus
#33Closed-loop interferometric sensor using loop gain for determining interference contrast
#34INTERFEROMETER SYSTEM HAVING A CONTINUOUSLY VARIABLE BROADBAND REFLECTOR AND METHOD TO GENERATE AN INTERFERENCE SIGNAL OF A SURFACE OF A SAMPLE
#35Remote probe for optical measuring machine
#36Agile imaging system
#37Compact portable double differential fiber optic Sagnac interferometer
#38Apparatus to reduce pressure and thermal sensitivity of high precision optical displacement sensors
#39Automated re-focusing of interferometric reference mirror
#40Real time FPGA resampling for swept source optical coherence tomography
#41Grazing incidence interferometer
#42System and method for stabilizing mode locked swept laser for OCT medical imaging
#43Optical coherence tomography with an extended dynamic range
#44Laser heterodyne interferometric signal processing method based on locking edge with high frequency digital signal
#45Apparatus for detecting a 3D structure of an object
#46Device for swept source optical coherence domain reflectometry
#47Optical coherence tomography control systems and methods
#48Fiber stabilization of optical path differences (OPD) over a wide bandwidth frequency range for extended periods of time
#49System and method for stabilizing mode locked swept laser for OCT medical imaging
#50Agile imaging system
#51Interferometer with continuously varying path length measured in wavelengths to the reference mirror
#52Systems and methods for phase measurements
#53Measuring apparatus including multi-wavelength interferometer
#54MEASUREMENT APPARATUS
#55Multi-wavelength interferometer, measurement apparatus, and measurement method
#56Optical phase extraction system having phase compensation function of closed loop type and three-dimensional image extraction method thereof
#57Optical coherence tomographic imaging apparatus, optical coherence tomographic imaging method, program for executing the optical coherence tomographic imaging method, and storage medium having the program stored thereon
#58Interferometric material sensing apparatus including adjustable reference arm and associated methods
#59Process, system and software arrangement for determining at least one location in a sample using an optical coherence tomography
#60Measurement apparatus
#61Imaging device for optical coherence tomographic image and imaging method
#62Fixed wavelength absolute distance interferometer
#63Apparatus and methods for uniform frequency sample clocking
#64Device for swept-source optical coherence domain reflectometry
#65Lightwave interference measurement apparatus that calculates absolute distance using lightwave interference
#66Adaptive optics apparatus and imaging apparatus including the same
#67Interferometric distance-measuring method with delayed chirp signal and such an apparatus
#68OCT apparatus and interference signal level control method for the same
#69Optical interference measuring apparatus
#70Interference microscope with scan motion detection using fringe motion in monitor patterns
#71Optical image measurement device
#72System and method for correcting sampling errors associated with radiation source tuning rate fluctuations in swept-wavelength interferometry
#73Systems and methods for phase measurements
#74Vibration-resistant interferometric scanning system and method thereof
#75Laser system employing harmonic generation
#76Optical image measuring apparatus
#77Apparatus for interferometric sensing
#78Apparatus and methods for uniform frequency sample clocking
#79Optical image measurement device and optical image measurement method
#80Optical image measurement device
#81Method and apparatus for detecting defect on a surface of a specimen
#82Holographically compensated, self-referenced interferometer
#83Low non-linear error displacement measuring interferometer
#84Monolithic displacement measuring interferometer with spatially separated but substantially equivalent optical pathways and optional dual beam outputs
#85Method for determining the refractive index during interferometric length measurement and interferometric arrangement therefor
#86Methods and systems for ultra-precise measurement and control of object motion in six degrees of freedom by projection and measurement of interference fringes
#87Die level optical transduction systems
#88Method and arrangement for optical coherence tomography
#89Process, system and software arrangement for determining at least one location in a sample using an optical coherence tomography
#90Device for measuring an optical path length difference
#91Q-point stabilization for linear interferometric sensors using tunable diffraction grating
#92Interferometric servo control system for stage metrology
#93Method and device for measuring wall thickness of a pipe in a pipe-rolling mill
#94Systems and methods for phase measurements
#95Systems and methods for phase measurements
#96System and method of phase-locked fiber interferometry