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WO/2020/197813A1 |
An example method includes causing a light projecting system of a distance sensor to project a pattern of light onto an object. The pattern of light includes a plurality projection artifacts arranged in a grid. Rows and columns of the gr...
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WO/2020/187713A1 |
A device for removing a portion of an object includes a stage, a metrology apparatus, a material removal device, and an actuator. The metrology apparatus includes a radiation source, an optical system, and a detector. The material remova...
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WO/2020/182238A1 |
The present invention relates to a device, use of the device and a method for high contrast imaging, particularly suitable for imaging of moving object of interest such as gas expanding from a gas jet or physical or chemical or biologica...
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WO/2020/183395A1 |
The invention relates to a system and method for detecting vibrations on the periphery of an optical fibre, which is divided into five subsystems that are connected together. First, a light-source subsystem (6) generates light, which is ...
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WO/2020/186041A1 |
A dental optical coherence tomography system for scanning a sample has a swept source laser configured to generate output light having a range of wavelengths. Two or more optical channels each provide a reference and sample path for the ...
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WO/2020/178234A1 |
Device and method (100) for measuring interfaces of an optical element (5) to be measured, this element forming part of a plurality of similar optical elements comprising at least one optical element called the "reference" optical elemen...
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WO/2020/180755A1 |
An example apparatus includes a light source, first and second polarizers, an image sensor, a filter, and control circuitry. The light source outputs a light beam, and the first polarizer passes first polarized light from the output ligh...
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WO/2020/174088A1 |
The invention relates to a method for controlling a semiconductor-laser-diode-based SS-interferometer system (SS = swept source), which allows for a wide range of application and is suitable for use in ophthalmology, in particular for im...
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WO/2020/172897A1 |
Disclosed are a detection device (300) suitable for detecting a lens surface shape, and a stitching interferometer (400) comprising the detection device (300). The detection device (300) comprises: a barrel-shaped detection frame (302), ...
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WO/2020/174266A1 |
The present disclosure concerns an imaging system for imaging a sample immersed in a controlled environment. The system comprises - at least one enclosure configured to hold at least one imaging sensor or camera inside the enclosure, the...
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WO/2020/174665A1 |
This Michelson interferometer comprises a fixed mirror, a movable mirror, a movement mechanism, and a beam splitter. The movable mirror is provided so as to be capable of moving in one direction and the opposite direction from the one di...
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WO/2020/169845A1 |
The invention relates to a device and to a method for measuring a distance to a reflective object (80). The device has a radiation source for generating an object beam (12) and a reference beam (14), the object beam propagating to the ob...
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WO/2020/164786A1 |
The invention relates to a device and a method for characterizing the surface shape of a test object. A device according to the invention for characterizing the surface shape of a test object has a test arrangement (130, 230) for determi...
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WO/2020/165495A1 |
A system for detecting a wave occurring in/on a membrane comprises a source (101) for directing an excitation signal obliquely to the membrane and a receiver (102) for measuring interference between a first part of the excitation signal ...
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WO/2020/161712A1 |
Some embodiments relate to a device for assessing middle ear content or condition, comprising: a body which tapers towards a narrow end having a diameter small enough to be introduced into an external ear canal; a plurality of light sour...
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WO/2020/163420A1 |
An endoscope system (200, 300) for imaging an interior of a patient (180) comprises an endoscope tube (210, 310), an imaging unit (350) for imaging the interior of the patient, wherein the imaging unit is at least partially located insid...
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WO/2020/159957A1 |
A probe for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A polarizing fiber optically coupled within the probe body transmits a source...
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WO/2020/159844A1 |
A method of correcting distortion of an image, including: analyzing, by a processor, an image segment of the image to identify a speckle artifact, the image segment being obtained from a scanning imaging device; determining, by the proce...
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WO/2020/160229A1 |
A multi-photon imaging system includes a laser module having a first channel for outputting a two-photon excitation laser pulse and a second channel for outputting a three-photon excitation laser pulse. The system further includes a firs...
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WO/2020/152672A1 |
A depth or spectral measurement system includes an emission unit that is configured to emit light in a continuous wavelength-encoded light pattern in a continuous wavelength- encoded light pattern in which the emitted light varies with a...
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WO/2020/152772A1 |
This Michelson interferometer (FINCH Michelson interferometer 10) is provided with: a main interferometer having a beam splitter 12 for dividing a beam of incoming light into a first beam and a second beam, a movable mirror 13 that is di...
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WO/2020/144674A1 |
A method comprising: directing a continuous-wave source laser beam to an optical resonator that is impinged by acoustic waves, wherein said source laser beam is propagated through said optical resonator; and detecting a signal associated...
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WO/2020/146764A1 |
Systems and methods for image-based guidance using automated instrument tracking. An en face image frame, generated from en face image data captured by a first imaging system (e.g., an SER imaging system), is analyzed to determine a loca...
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WO/2020/146490A1 |
A method for determining estimated depth data for an object includes scanning the object to produce scan data corresponding to a surface region of the object using a first scanning process, configuring an artificial neural network with f...
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WO/2020/139096A1 |
The invention relates to the field of measuring and testing technology, and more particularly to interferometric technology for measuring linear dimensions, and can be used for measuring absolute lengths and distances. The proposed techn...
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WO/2020/133820A1 |
A method and system for measuring the interference of a two-degree-of-freedom heterodyne optical grating having high tolerance, the system comprising a separate modulation heterodyne laser module (1), an optical grating interference mirr...
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WO/2020/124134A1 |
The present application relates to an atom interferometry method. The atom interferometry method releases atoms from an atom source into an interferometer region. Pulses of light are then directed at the atoms to place the atoms in diffe...
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WO/2020/128293A1 |
The present invention relates to a laser device for polarization interferometry using a temporally phase-modulated laser source and a passive phase-retarder element. This device, based on interference between transverse electric TE and t...
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WO/2020/128423A1 |
A device (200) and method for inspecting an optical surface (232) of an optical element (230) or an optical system is presented.The device (200)includes a source of electromagnetic radiation(210), a sensor (240) that includes a plurality...
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WO/2020/127254A1 |
An apparatus comprising means for: causing illumination of different areas of a sample with an optical frequency imaging beam at different positions at different times, wherein adjacent positions are configured to cause the corresponding...
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WO/2020/118799A1 |
Provided is a non-dead-zone cold atom interferometer with high frequency output, comprising: a three-dimensional magnetic optical trap, wherein predetermined included angles are formed between a first group of optical splitters and an at...
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WO/2020/121311A1 |
A method of optical sensing comprises coupling an excitation optical signal into a first optical fiber to induce Rayleigh backscattering, thereby providing a backscattered signal. The backscattered signal is optically amplified in the fi...
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WO/2020/117457A1 |
An extended length of optical fiber having an offset core with an inscribed Bragg grating is used a distributed sensor in combination with an optical frequency domain reflectometer (OFDR) to enable measurement small-scale (e.g., sub-mill...
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WO/2020/115737A1 |
System and methods are provided for detecting vibrations of one or more objects comprising at least one illumination source configured to project structured light pattern; a Time-of-Flight (ToF) imaging device comprising: an illumination...
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WO/2020/115719A1 |
An optical receiver is provided that includes a detector array of multiple detector elements, and processing circuits coupled to the multiple detector elements. The detector array is configured to receive light from an external source, m...
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WO/2020/116019A1 |
An atomic beam is irradiated with a first laser beam (701a), a second laser beam (701b), and a third laser beam (701c). The first laser beam and the third laser beam each have a wavelength that corresponds to a transition between a groun...
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WO/2020/109419A1 |
The invention relates to a method, an interferometer and a signal processing device, each for determining an input phase and/or an input amplitude of an input light field. An input light field is divided into a first light field and a se...
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WO/2020/112521A1 |
Spectrometer systems are provided including a detector array (320); an imaging lens assembly (327) coupled to the detector array, the imaging lens assembly including a first element of positive optical power (336) followed by a second el...
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WO/2020/106335A1 |
Scatterometry overlay (SCOL) measurement methods, systems and targets are provided to enable efficient SCOL metrology with in-die targets. Methods comprise generating a signal matrix by: illuminating a SCOL target at multiple values of a...
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WO/2020/106944A1 |
A method and apparatus are directed to characterizing a continuously moving pharmaceutical manufacture via interferometry-based scanning. The method includes forming a depth characterization of the pharmaceutical manufacture along a scan...
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WO/2020/105036A1 |
A measurement system is presented configured for integration with a processing equipment for applying optical measurements to a structure. The measurement system comprises: a support assembly for holding a structure under measurements in...
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WO/2020/098227A1 |
A method and device for correcting non-linear errors of a single-frequency laser interferometer, which relate to the technical field of laser measurement. The present invention uses a liquid crystal phase retarder to generate a continuou...
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WO/2020/100064A1 |
Apparatus and method for detecting light, the apparatus comprising: - means for splitting an input beam of light, which is obtained from an optical coherence tomography arrangement into at least a first and a second beam of light; - mean...
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WO/2020/098132A1 |
Disclosed in the present invention is a phase delay extraction and compensation method in a PGC phase demodulation method, comprising: converting, by means of an analog-to-digital converter, an amplified and filtered sinusoidal phase mod...
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WO/2020/098177A1 |
Disclosed by the present invention is a method for measuring a downward inclination angle of an antenna based on linear regression fitting. The method comprises the following steps: performing instance segmentation on an input original a...
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WO/2020/094625A1 |
This invention relates to a method and a device for in situ process monitoring and control down to a single pulse measurement during laser processing, like ablation, laser printing additive manufacturing and modification of refractive in...
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WO/2020/094478A1 |
The present invention relates to an optical fiber sensor, comprising an optical fiber having embedded therein at least one fiber core (14, 16, 18, 20) extending along a length of the optical fiber, the at least one fiber core having a pl...
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WO/2020/089900A1 |
A holographic interferometer, comprising: an imaging device capturing an interference pattern created by at least two polarized light beams; a structured phase retardation element located in an optical path of at least one polarized ligh...
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WO/2020/083744A1 |
According to the invention, a coherent light beam is split into at least two part beams to detect changes in direction of said beam. The at least two part beams are overlaid to form an interference pattern which has light intensity minim...
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WO/2020/086920A1 |
The inspection system includes an illumination source, a TDI-CCD sensor, and a dark field/bright field sensor. A polarizer receives the light from the light source. The light from the polarizer is directed at a Wollaston prism, such as t...
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