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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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WO/2019/108691A1 |
A digital slide scanning apparatus that includes a scanning stage, a focusing sensor, an imaging sensor, and at least two processors. A main processor is configured to control the scanning stage to move a sample relative to the focusing ...
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WO/2019/097118A1 |
An artifact (101) for assisting imaging based on electromagnetic radiation and/or mechanical waves is presented. The artifact comprises a substrate (102) and layers (103-107) on top of the substrate. The layers comprise organic material ...
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WO/2019/099017A1 |
A spectrometer for downhole applications can be calibrated without using radioactive sources. A spectrum of measured gamma ray counts can be received from a spectrometer in a calibration mode. A spectrum-to-window ratio can be used to de...
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WO/2019/087201A1 |
An interferometer system comprises a light redirecting system for splitting an input light beam into two secondary light beams to respectively propagate along a first optical arm and a second optical arm, and for recombining the secondar...
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WO/2019/087040A1 |
Techniques and apparatus for producing sampled Optical Coherence Tomography (OCT) interference signals without aliasing, based on a swept-source OCT interference signal. An example apparatus comprises a k-clock circuit configured to sele...
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WO/2019/081490A1 |
Assembly for detecting the surface profile (52) of an object surface (110) by means of interferometric distance measurement, comprising: a radiation source (10, 20, 30) for generating monochromatic light (22, 24, 34); an optic assembly (...
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WO/2019/083981A1 |
Single-shot, adaptive metrology of rotationally variant optical surfaces, such as toroids, off-axis conies and freeform surfaces. An adaptive interferometric null test uses a high definition liquid crystal phase-only spatial light modula...
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WO/2019/081807A1 |
An apparatus comprising: means for modulating an input beam of light wherein the input beam of light is obtained from an optical coherence tomography arrangement; means for dispersing the modulated beam of light; and means for detecting ...
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WO/2019/084569A1 |
An apparatus for analyzing light includes an input aperture for receiving light; a first set of one or more lenses configured to relay light from the input aperture; and a prism assembly configured to disperse light from the first set of...
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WO/2019/077557A1 |
The invention concerns a method and a related system for measuring thermo-elastic deformations of objects. The invention uses an interferometric metrology instrument (2) configured to carry out optical measurements, and a thermal chamber...
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WO/2019/076701A1 |
The invention relates to a machining device (1) for machining a workpiece (2), in particular by means of welding, the machining device comprising: a machining head (3) for providing a machining beam, in particular a laser beam (4), for m...
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WO/2019/075309A1 |
In some embodiments, systems, methods, and media for multiple reference arm spectral domain optical coherence tomography are provided which, in some embodiments, includes: a sample arm coupled to a light source; a first reference arm hav...
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WO/2019/073231A1 |
A field detector (2) comprises a field-responsive element (10) which undergoes a dimensional change when exposed to a predetermined field; and an interferometric read-out arrangement arranged to detect the dimensional change of the field...
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WO/2019/075376A1 |
An exemplary system, method, and computer-accessible medium for generating an image(s) of an three-dimensional anatomical flow map(s) can include receiving an optical coherence tomography ("OCT") signal(s), splitting the OCT signal(s) in...
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WO/2019/070226A1 |
A method for altering the intensity of light across the field of view of an image sensor in a microscope apparatus having a light source, an image sensor having pixels, and a specimen stage, wherein light from the light source travels al...
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WO/2019/071044A1 |
A stuck slide determination system is provided that determines if a slide (e.g., glass slide), positioned on a scanning stage at the start of the scanning process, gets stuck and does not move along with the scanning stage after the scan...
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WO/2019/069228A1 |
Techniques for measuring optical aberrations of the eye are disclosed. An example method comprises positioning the eye in a measurement location adjacent to a measurement arm of an optical coherence tomography (OCT) interferometer appara...
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WO/2019/063403A1 |
The invention relates to a measuring device for contactlessly measuring a distance to a surface (19) or a distance between two surfaces, comprising a measurement light source (11), which produces polychromatic measurement light (12), and...
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WO/2019/068038A1 |
A digital scanning apparatus is provided that includes imaging and focusing sensors and a processor to analyze the image data captured by the imaging and focusing sensors and adjust the focus of the scanning apparatus in real time during...
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WO/2019/063247A1 |
The invention relates to a method and a device for characterising the surface shape of an optical element, in particular a mirror or a lens of a micro-lithographic projection exposure system. A method according to the invention comprises...
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WO/2019/068045A1 |
Apparatus and methods for scanning a 2D or 3D image of a specimen without relative Z-axis motion between the specimen and the objective lens. In an embodiment, the apparatus includes a tilted camera having individual lines of pixels. Eac...
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WO/2019/068039A1 |
Two-pass capture of a macro image. In an embodiment, a scanning apparatus comprises a stage, a high-resolution camera, and a lens that provides a field of view, substantially equal in width to a slide width, to the high-resolution camera...
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WO/2019/063437A1 |
The invention relates to a compensation optical system (30) for a measuring system (10), said measuring system being used to determine a form of an optical surface (12) of a test object (14) by interferometry and said compensation optica...
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WO/2019/068043A1 |
Real-time autofocus. In an embodiment, a scanning apparatus includes an imaging sensor, a focusing sensor, an objective lens, and processor(s) configured to analyze image data captured by the imaging and focusing sensors, and move the ob...
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WO/2019/062466A1 |
A real-time normalization modification apparatus for PGC demodulation in a sine phase modulation interferometer, containing an optical path structure for measuring an interferometer and monitoring the interferometer; an electro-optic pha...
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WO/2019/056022A1 |
Provided herein are devices and systems comprising an illumination module configured to provide a source light to an optical interference module, which converts the source light to a line of light and processes light signal; an interfere...
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WO/2019/055324A1 |
A video measurement system includes an imaging system, a reticle projector for projecting an image of a reticle through the imaging system onto the test object, and a camera for capturing images of the test object together with the retic...
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WO/2019/049016A1 |
An apparatus for optical detection of ultrasound includes one or more optical resonators (OR - 200), one or more optical passive-demodulation interferometers (OPDI - 22), and one or more respective electro-optical readout circuits (EORC ...
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WO/2019/051301A1 |
Apparatus and methods are disclosed for measuring polarization properties and phase information, for example as can be used in microscopy applications. According to one example of the disclosed technology, an apparatus includes a light s...
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WO/2019/045152A1 |
The present invention relates to an integrated optical measurement system and a three-dimensional integrated optical measurement method which are for a non-contact three-dimensional measuring instrument and, more particularly, to a metho...
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WO/2019/037360A1 |
The present invention is applicable to the technical field of optical imaging correction, and provides a fast tilt phase error compensation method and device based on wavefront rotation, comprising: collecting, by using a coaxial digital...
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