164219 ⎘
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 particular adjustment of coherence gate, i.e. adjusting position of zero path difference in low coherence interferometry using a second interferometer before or after measuring interferometer
METHOD AND DEVICE FOR MEASURING INTERFACES OF AN OPTICAL ELEMENT
#2BROADBAND PROFILER SYSTEM AND METHOD FOR CONSTRUCTING A THREE-DIMENSIONAL PROFILE OF A TARGET
#3System for Performing Dual Path, Two- Dimensional Optical Coherence Tomography(OCT)
#4Phase noise compensation system, and method
#5Device For Optically Measuring An Object
#6DEVICE AND METHOD FOR MEASURING HEIGHT IN THE PRESENCE OF THIN LAYERS
#7Optical sectioning apparatus using advanced optical interference microscopy
#8System for performing dual path, two-dimensional optical coherence tomography (OCT)
#9Optical imaging device with image defect determination
#10Interferometric distance sensing device and method with less dependency on environment disturbances on a fiber
#11System for performing dual path, two-dimensional optical coherence tomography (OCT)
#12Swing-style and high signal-to-noise ratio demodulation devices and corresponding demodulation method for the measurement of low coherence interference displacement
#13Interferometric distance measuring method for measuring surfaces, and such a measuring arrangement
#14Optical imaging device with image defect determination
#15Optical tomographic image acquisition apparatus and method of acquiring optical tomographic image which adjusts reference position that acquires optical tomographic image based on sheath interference signal
#16Measuring apparatus
#17Interferometric path and/or rotation measuring device
#18METHOD FOR MONITORING THIN FILM DEPOSITION USING DYNAMIC INTERFEROMETER
#19Apparatus and method of monitoring and measurement using spectral low coherence interferometry
#20REAL-TIME INTERFEROMETER
#21Method for finishing surface of preliminary polished glass substrate
#22Apparatus for measuring rotationally symmetric aspheric surface
#23Optical imaging device with image defect determination
#24Optical imaging apparatus and method
#25Linear-carrier phase-mask interferometer
#26Method for finishing surface of preliminary polished glass substrate
#27Synchronous frequency-shift mechanism in fizeau interferometer
#28Optical tomographic image acquisition apparatus and method of acquiring optical tomographic image which adjusts reference position that acquires optical tomographic image based on sheath interference signal
#29System for optical coherence tomography
#30Method for finishing surface of preliminary polished glass substrate
#31Systems and Methods for Reducing Nonlinearity in an Interferometer
#32Interferometric measuring device
#33Method of manufacturing an optical element
#34Synchronous frequency-shift mechanism in Fizeau interferometer
#35Interferometric Measuring System
#36Interferometric measuring device
#37Interferometric measuring device
#38Linear-carrier phase-mask interferometer
#39Common path frequency domain optical coherence reflectometry/tomography device
#40Time-delayed source and interferometric measurement of windows and domes
#41Common path frequency domain optical coherence reflectometer and common path frequency domain optical coherence tomography device
#42Optical MEMS wavefront diagnostic transceivers and receiver
#43Interferometric measuring device
#44Interferometric measuring device
#45Low-coherence interferometry optical sensor using a single wedge polarization readout interferometer
#46Interferometric optical apparatus and method using wavefront division
#47Optical MEMS cavity having a wide scanning range for measuring a sensing interferometer
#48Fibre-optic interferometric remote sensor