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Matches 1 - 50 out of 11,390

Document Document Title
WO/2019/191815A1
A computer-implemented event statistic generation for intrusion detection comprises processing a plurality of return signals from a coherent optical time-domain reflectometer into time-domain signals for each of a plurality of sensor bin...  
WO/2019/195737A1
This disclosure relates to methods for determining the quality of polymers, more particularly, polyolefins. The methods involve Raman spectroscopy and artificial intelligence to compute polymer properties and/or features.  
WO/2019/195140A1
A system for detecting high-frequency radiation that offers near-quantum-limited sensitivity, broad spectral bandwidth, and high spectral resolution while operating at room temperature. The system can include an antenna assembly configur...  
WO/2019/185298A1
The invention provides a position measurement system for determining a position of an object, the position measurement system comprising a first interferometer and a second interferometer arranged to determine a distance of the object in...  
WO/2019/183838A1
An optical coherence tomography system (100), comprising: a light source (110), an optical fiber coupler (120), a reference arm (130), a sample arm (140), a signal collection module (150) and a signal processing module (160). The light s...  
WO/2019/191061A1
Disclosed herein are systems and methods for imaging cells. Quantitative phase imaging uses variations in the index of refraction of a sample as a source of endogenous contrast, providing label-free information of sub-cellular structures...  
WO/2019/183291A1
The technology disclosed in this patent document can be used to implement an optical coherent tomography (OCT) system that combines a control of the probe light to the target sample with different optical aberration patterns in optically...  
WO/2019/179687A1
The invention relates to a free-beam interferometry method for photocopying a sequence of cut surfaces inside a light-scattering object. The method allows the user to select a larger image field and/or a higher image resolution than poss...  
WO/2019/176300A1
A distance measurement device (10) is provided with: an irradiation optical system for condensing light from a light source (11) onto a measurement object T and radiating the light thereto; a diffraction optical element (14) for changing...  
WO/2019/176805A1
Provided are a device and a method for measuring eccentricity, in which the amount of eccentricity of the actual position of the center of curvature of an optical surface to be measured of a lens with respect to the design position of th...  
WO/2019/170540A1
The invention relates to a thickness-measuring device (16) for measuring a thickness of flat workpieces, in particular films (14), comprising (a) a first arm (20) and a second arm (22), which form an intermediate space (24) therebetween ...  
WO/2019/172894A1
Technologies are described for detection of eye surface vibrations to determine cell damage within a treatment area of an eye undergoing laser treatment. Eye surface vibrations may be caused by intraocular pressure waves that form during...  
WO/2019/172767A1
A forward looking MEMS based OCT probe (50) is provided that comprises an elongate probe housing (51) having at a first end a probe interface (54) for an optic fibre (56), and at a second opposite end a viewing window (58). The probe hou...  
WO/2019/169436A1
The present invention relates to microscopy and spectroscopy systems, particularly to confocal microscopy and spectroscopy apparatus. Current confocal microscopes are expensive and difficult to set up and calibrate. The confocal microsco...  
WO/2019/166934A1
An OCT imaging system may include an OCT light source operable to emit an OCT light beam, and a beam splitter operable to split the OCT light beam into a sample beam, transferred to a sample arm waveguide, and a reference beam, transferr...  
WO/2019/167478A1
In this two-dimensional spectroscopic measurement method, a first optical frequency comb in which a repetition frequency is four times an offset frequency is generated, the first optical frequency comb is divided into second to fifth opt...  
WO/2019/167477A1
In this two-dimensional spectroscopy method, divided optical pulse trains are obtained by dividing an optical pulse train in which a plurality of optical pulses having a predetermined frequency distribution are arranged chronologically, ...  
WO/2019/166446A1
The invention relates to a reference interferometer (1) for determining an optical path length change, more particularly a relative optical path length change in interferometer arms (2), comprising a beam splitter (3) and a laser light s...  
WO/2019/166876A1
Apparatus for determining a range to one or more targets are provided. In various embodiments, the apparatus comprises a field transceiver module and a computing node in communication with each other. The field transceiver module is conf...  
WO/2019/168982A1
Techniques for removing interferometry signal phase variations caused by distortion and other effects in a multi-layer stack include: providing an electronic processor sample interferometry data acquired for the stack using a low coheren...  
WO/2019/162576A1
Examples of the disclosure relate to an apparatus, an optical coherence tomography device, a wearable electronic device and method of forming an apparatus for optical coherence tomography. The apparatus comprises at least one layer of si...  
WO/2019/162571A1
Examples of the disclosure relate to an apparatus (101), a wearable electronic device and an optical arrangement for optical coherence tomography. The apparatus comprises an optical coherence tomography system (103) and an optical arrang...  
WO/2019/158920A1
A method and apparatus for quantifying volume of a deposited skin-print A method of determining a volume of skin-print residue deposited on a substrate is disclosed. The method comprises: performing interferometry on the substrate with s...  
WO/2019/160492A1
A capturing of target cells from a biological sample is achieved by inducing a flow of the biological sample in a flow channel (30, 60) of an upstream microfluidic device (1). Target cells present in the biological sample are captured in...  
WO/2019/154793A1
The invention relates to a method for measuring structures on a substrate (12), which is configured for use in microlithography. According to the invention, the structures comprise a plurality of structure element arrangements (14) distr...  
WO/2019/149515A1
The invention provides a wavelength tracking system comprising a wavelength tracking unit and an interferometer system. The wavelength tracking unit has reflection surfaces at stabile positions providing a first reflection path with a fi...  
WO/2019/149468A1
A phase stepping method for determining an aberration map for a projection system and an apparatus for carrying out said method. The method uses first patterned region arranged in an object plane of the projection system and a second pat...  
WO/2019/149638A1
The present invention relates to a method (100) for measuring the profile of a surface (400) of an object (300) to be measured, particularly comprising zones made of at least two different materials, the object (300) to be measured being...  
WO/2019/145754A1
A digitizer and processor device for a swept-source optical coherence tomography (SS-OCT) imaging system, comprising: an input configured to receive an OCT signal; a control input configured to receive a k-clock signal; a combiner unit (...  
WO/2019/147936A1
System and methods are provided for characterizing an internal surface of a lens using interferometry measurements. Sphere-fitting a distorted radius determines distorted pathlengths. Ray-tracing simulates refraction at all upstream surf...  
WO/2019/145459A1
The invention relates to a method for generating a two-dimensional interferogram using a Michelson-type open-jet interferometer comprising an expanded, spatially partially coherent light source and a two-dimensional light detector, where...  
WO/2019/145764A1
A coherence gated photoacoustic remote sensing system for imaging a subsurface structure in a sample with optical resolution may include an excitation beam source configured to generate an excitation beam that induces ultrasonic signals ...  
WO/2019/145843A1
A system includes: a swept laser light source generating laser light having a frequency swept across a frequency bandwidth as a function of time; a sample path directing a first portion of the laser light to an eye as a probe beam and re...  
WO/2019/146861A1
The present invention relates to a system and a method for compensating for a non-linear response characteristic in object shape measurement by using phase-shifting deflectometry. More specifically, the present invention relates to a met...  
WO/2019/142492A1
An interference image acquiring device 1 is provided with a light source 11, a beam splitter 12, an objective lens 13, an objective lens 14, a second reflecting mirror 15, a tube lens 16, a beam splitter 17, an imager 18, and a first ref...  
WO/2019/138685A1
In the present invention, an interference image acquisition unit 2 acquires M interference images of an object in a state where the optical-path-length difference between the two beams of a two-beam interferometer 20 fluctuates over time...  
WO/2019/138062A1
The invention relates to a dynamic focusing system (DFS) for an optical device for the observation of an object. The dynamic focusing system (DFS) comprises: an objective housing (OBH) comprising a circumferential housing part (CIH) and ...  
WO/2019/130074A1
An image acquisition system includes a plurality of illumination sources, each configured to emit light having a specified central wavelength, a first light sensing element having a first field of view and configured to receive illuminat...  
WO/2019/129662A1
A medical instrument is described that includes an optical source, an optical fiber, and a waveguide patterned upon a substrate.The optical fiber receives radiation from the optical source and includes a first segment and a second segmen...  
WO/2019/121776A1
According to the invention, for the purpose of interferometric determination of the position of an object (9), a coherent light beam (4) is split into two parts (6, 7), a first of the two parts (6) is reflected by the object, a second of...  
WO/2019/123791A1
This observation target object cover for performing an interference observation, using first light and second light having a greater coherence length than the first light, to acquire an interference light image of an observation target o...  
WO/2019/123265A1
Method for determining the refractive index (n) of a material of a contact lens, in particular of a soft contact lens, the contact lens (1) having a first surface and a second surface defining a lens geometry there between, by measuring ...  
WO/2019/120470A1
The present invention relates to a method and an assembly for chromatic confocal spectral interferometry, in particular also for spectral domain OCT (SD-OCT) using multi-spectral light. A multiple (e.g. two, three, four, etc.) axial spli...  
WO/2019/126786A1
Devices, systems and methods for optical spectroscopy using a Fourier transform that improve measurement speed, and relax the sampling rate and dynamic range requirements compared to conventional techniques, are described. One exemplary ...  
WO/2019/120472A1
The invention relates to an interferometer with a Schwarzschild objective, in particular for spectral interferometry for detecting distance, depth, profile, microprofile, shape, ripple and/or roughness of the optical path length in or on...  
WO/2019/117453A1
One embodiment of the present invention relates to a method for generating three-dimensional shape information of an object to be measured from an image including intensity information of an object hologram generated by interference betw...  
WO/2019/118000A1
Described herein are systems and methods for noninvasive functional brain imaging using low-coherence interferometry (e.g., for the purpose of creating a brain computer interface with higher spatiotemporal resolution). One variation of a...  
WO/2019/110166A1
The invention relates to a reference interferometer (1) for determining an optical path length change, in particular a relative optical path length change in interferometer arms (2), comprising a beamsplitter (3) and a laser light source...  
WO/2019/104393A1
Disclosed herein is a system (10) for interrogating an interferometer. The system (10) comprises an optical signals generation system (14) for concurrently generating a plurality of optical signals that each have a modulation parameter t...  
WO/2019/108634A1
An optical metrology device, such as an interferometer, detects sub-resolution defects on a sample, i.e., defects that are smaller than a pixel in the detector array of the interferometer. The optical metrology device obtains optical met...  

Matches 1 - 50 out of 11,390