164231 ⎘
Instruments as specified in the subgroups and characterised by the use of optical measuring means; Interferometers; Reduction or prevention of errors; Testing; Calibration of particular errors; Caused by ambiguity Quadrature detection, i.e. detecting relatively phase-shifted signals
Sub-classes:METHODS AND SYSTEMS FOR THREE-DIMENSIONAL IMAGING OF A TRANSPARENT BIOLOGICAL OBJECT IN A BIOLOGICAL SAMPLE BY FULL-FIELD OPTICAL TOMOGRAPHY
#2THIN FILM THICKNESS ADJUSTMENTS FOR THREE-DIMENSIONAL INTERFEROMETRIC MEASUREMENTS
#3Truncated nonlinear interferometer-based sensor system
#4Truncated non-linear interferometer-based sensor system
#5Truncated nonlinear interferometer-based atomic force microscopes
#6Phase shift interferometer
#7Three-dimensional measurement device
#8Optical tomographic imaging method, optical tomographic imaging apparatus, and program
#9Disturbance detection using a passively terminated fiber optic sensor
#10Camera adapter based optical imaging apparatus
#11Phase shift interferometer
#12Fiber-optic disturbance detection using combined Michelson and Mach-Zehnder interferometers
#13Systems and methods for signal processing in optical imaging systems
#14Measurement apparatus
#15DEVICE AND METHOD FOR DETERMINING OPTICAL PATH LENGTHS
#16Short coherence interferometry for measuring distances
#17Camera adapter based optical imaging apparatus
#18Phase-shifting interferometry in the presence of vibration
#19Linear-carrier phase-mask interferometer
#20System for fourier domain optical coherence tomography
#21Methods and systems for removing undesired artifacts in fourier domain optical coherence tomography (FDOCT) systems using continuous phase modulation and related phase modulators
#22Method and system for optical coherence tomography
#23DUAL BEAM HETERODYNE FOURIER DOMAIN OPTICAL COHERENCE TOMOGRAPHY
#24Phase-shifting interferometry in the presence of vibration
#25Phase-shifting interferometry in the presence of vibration using phase bias
#26Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
#27Methods, systems, and computer program products for removing undesired artifacts in fourier domain optical coherence tomography (FDOCT) systems using integrating buckets
#28Apparatus and method for joint measurements of conjugated quadratures of fields of reflected/scattered and transmitted beams by an object in interferometry
#29Apparatus and method for ranging and noise reduction of low coherence interferometry (LCI) and optical coherence tomography (OCT) signals by parallel detection of spectral bands
#30Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
#31Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
#32Apparatus and method for rangings and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
#33Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
#34Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
#35Methods, systems and computer program products for removing undesired artifacts in fourier domain optical coherence tomography (FDOCT) systems using continuous phase modulation and related phase modulators
#36SYSTEMS AND METHODS FOR GENERATING DATA USING ONE OR MORE ENDOSCOPIC MICROSCOPY TECHNIQUES
#37Linear-carrier phase-mask interferometer
#38Demodulation method and apparatus for fiber optic sensors
#39Phase unwrapping method, program, and interference measurement apparatus
#40POLARIZATION SENSITIVE OPTICAL COHERENCE DEVICE FOR OBTAINING BIREFRINGENCE INFORMATION
#41Polarization-sensitive common path optical coherence reflectometry/tomography device
#42Integrated interference scanning method
#43Interferometry systems and methods using spatial carrier fringes
#44Catoptric and catadioptric imaging systems with pellicle and aperture-array beam-splitters and non-adaptive and adaptive catoptric surfaces
#45Position detection apparatus and method
#46Catoptric and catadioptric imaging systems with pellicle and aperture-array beam-splitters and non-adaptive and adaptive catoptric surfaces
#47Phase-resolved measurement for frequency-shifting interferometry
#48Apparatus and method for joint and time delayed measurements of components of conjugated quadratures of fields of reflected/scattered and transmitted/scattered beams by an object in interferometry
#49Apparatus and methods for overlay, alignment mark, and critical dimension metrologies based on optical interferometry
#50Interferometry systems and methods
#51Catoptric and catadioptric imaging system with pellicle and aperture-array beam-splitters and non-adaptive and adaptive catoptric surfaces
#52Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
#53Object imaging system using changing frequency interferometry method
#54Stationary devices for determination of magnitude and polarity of electrophoretic mobility and zeta potential