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Matches 1 - 50 out of 10,912

Document Document Title
WO/2018/011466A1
A device for measuring an optical thickness of a layer (110)consisting of one or more materials comprises a measurement section (103) for producing measurement results based on interference between optical waves reflected from the layer ...  
WO/2018/010961A1
There is provided an interferometer system, comprising an heterodyne interferometer and a processing system. The heterodyne interferometer is arranged to provide a reference signal and a measurement signal. The reference signal has a ref...  
WO/2018/009342A1
A fiber includes M primary cores and N redundant cores, where M an integer is greater than two and N is an integer greater than one. Interferometric circuitry detects interferometric pattern data associated with the M primary cores and t...  
WO/2018/007211A1
A measuring method and a measuring system for interferometrically measuring the imaging quality of an optical imaging system are configured, by adapted design of measurement structures of associated structure carriers, to carry out a wav...  
WO/2018/008851A1
A thickness measuring apparatus according to an embodiment of the present invention may comprise: a light emission unit for irradiating light to an object; a lens unit for collecting light generated in the light emission unit; a lattice ...  
WO/2018/009529A1
The present disclosure provides a common-path optical waveguide probe. The common-path optical waveguide probe includes an optical waveguide, a lens, and a reference reflector. The optical waveguide includes a proximal end and a distal e...  
WO/2018/007101A1
An interfere) metric microscopy arrangement (1) is presented having an objective lens (20) that receives a light beam (9) emerging after sample interaction, wherefrom the light beam (9) is received by a beam splitter unit (30), positione...  
WO/2018/002593A1
There is described an interferometer for use in an optical locker. The interferometer comprises at least two transparent materials having different thermal path length sensitivities. The interferometer is configured such that an input be...  
WO/2018/005987A1
A system (100) for interrogating parameters at a plurality of locations in a sample (108) includes first and second ultrafast laser sources (102, 104), a reference device (110), and detector and processor units (124, 128). The first and ...  
WO/2018/000036A1
Methods and apparatus are presented for confocal microscopy using dispersed structured illumination. In certain embodiments the apparatus also comprises an optical coherence tomography (OCT) system, and OCT images acquired from two or mo...  
WO/2018/001751A1
An illumination system for a metrology apparatus that can achieve illumination spatial profile flexibility, high polarization extinction ratio, and high contrast. The illumination system includes a polarizing beam splitter (PBS), an illu...  
WO/2017/223542A1
An interferometry system including a coherent light source operable to generate a beam of coherent light is provided. Separate waveguide pathways are optically associated between the coherent light source a photodetector. A transceiving ...  
WO/2017/223036A1
The invention relates to systems and methods for observing living cells or organisms, wherein the systems and methods utilize a microscopy system having an illumination source and an objective lens. A specimen including a predetermined a...  
WO/2017/222785A1
An atomic interferometer and methods for measuring phase shifts in interference fringes using the same. The atomic interferometer has a laser beam traversing an ensemble of atoms along a first path and an optical components train with at...  
WO/2017/216242A1
An efficient OCT data collection and processing method for obtaining a high-axial-resolution image with explicit ranging over an extended depth is described. The method includes collecting a first dataset at a transverse location of the ...  
WO/2017/218860A1
A metrology apparatus has an illumination source that directs collimated light to a reference surface and to an optical component having a test surface that is in parallel with the reference surface. A first imaging lens defines a Fourie...  
WO/2017/217590A1
The present invention relates to an apparatus and a method for measuring the thickness and shape of a multilayer film structure using an image spectrometer. More specifically, the present invention relates to a method and an apparatus ca...  
WO/2017/213874A1
An interferometric measurement system measures a spun optical fiber sensor that includes multiple optical cores configured in the fiber sensor. A calibration machine includes a calibration fixture having known dimensions, one or more aut...  
WO/2017/211665A1
The invention relates to a method for the reference beam-free determination of a phase of an input beam bundle (110, Ein). In the method, an input beam bundle (110, Ein) having a plurality of input beams is divided into a main beam bundl...  
WO/2017/213464A1
Presented are a structured illumination microscopy system using a digital micromirror device and a time-complex structured illumination, and an operation method therefor. A structured illumination microscopy system using a digital microm...  
WO/2017/214268A1
A method for determining characteristics of a test cavity, the method includes for each of a plurality of optical frequencies within a bandwidth of a tunable laser, measuring interference signals from the test cavity and a reference cavi...  
WO/2017/214155A1
A sensitivity boosted laser dispersion spectroscopy system for sensing a sample in a sample cell or in an open path crossing the sample. The system includes a local oscillator arm and a sample arm containing the sample cell or the open p...  
WO/2017/212700A1
[Problem] To measure longer distances more accurately at the time of distance measurement employing the interference of light. [Solution] The disclosed distance measurement light source comprises at least: an n-type cladding layer and a ...  
WO/2017/205892A1
An optical delay line system comprising: a plurality of cascading delay lines adapted for use in an optical system, wherein a first cascading delay line of at least two of the plurality of cascading delay lines is arranged to: direct the...  
WO/2017/209729A1
A method for imaging a tooth surface, the method executed at least in part on a computer, directs an excitation signal toward the tooth from a scan head and obtains a depth-resolved response signal emanating from the tooth, wherein the r...  
WO/2017/209544A1
According to one aspect of the present invention, provided is a pattern structure inspection method comprising the steps of: emitting waves, from a wave source, at a sample including a pattern area in which a structure having a constant ...  
WO/2017/209352A1
The present invention provides an absolute distance measurement apparatus. The absolute distance measurement apparatus comprises: a mode-locked optical comb laser; a first optical splitter for receiving a beam output from the mode-locked...  
WO/2017/205530A1
A method of imaging a sample having birefringent crystals (or other materials) using a lens-free polarized microscopy device includes illuminating the sample contained on a sample holder with circularly polarized partially coherent or co...  
WO/2017/203756A1
Provided is a three-dimensional-measurement device with which it is possible to expand the range of measurement using light of differing wavelengths and to improve measurement efficiency. This three-dimensional-measurement device 1 is pr...  
WO/2017/203525A1
A system is described, for use in optical measurement of a sample. The system comprising: an illumination unit configured for providing coherent illumination of one or more selected wavelength ranges and directing it onto one or more sel...  
WO/2017/205063A1
The present disclosure relates to systems and devices configured to determine the distance to objects within a field of view. Namely, at least a portion of the field of view may be illuminated with a coherent light source. Due to interac...  
WO/2017/198699A1
The invention describes a laser sensor module. The laser sensor module comprises at least a first laser (111) being adapted to emit a first measurement beam (111') and at least a second laser (112) being adapted to emit a second measurem...  
WO/2017/198971A1
This instrument comprises an object (18) and an apparatus for measuring a surface or volume finish of this object (18). The apparatus includes a device (10, 12, 4, 16, 20) for exposing the object to at least one beam of waves, a detector...  
WO/2017/201548A1
Compact optical spectrometers are provided to measure optical spectral composition of light.  
WO/2017/195029A1
Devices and methods are disclosed for determining relative motion. In one implementation, an interferometer is provided. The interferometer may include a body, a light source configured to project a coherent light to an opposing surface,...  
WO/2017/194277A1
The invention relates to a position measurement system (PMS) configured to measure a position of an object (GR), comprising: • - an optical system (20) to obtain a first measurement wave (12) and a second measurement wave (13) from a r...  
WO/2017/194832A1
An artifact (101) for determining resolution of imaging based on electromagnetic radiation, mechanical waves, or both is presented. The artifact comprises a substrate (102) and layers (103, 104) on top of the substrate. The layers compri...  
WO/2017/191639A1
A system and technique are presented, for use in remote sensing of acoustic and/or mechanical vibration data from an inspection region. The system comprises: input port for receiving input data comprising a sequence of image data pieces ...  
WO/2017/191128A1
The invention relates to the measurement of intraocular lengths by means of dual-beam Fourier low-coherence interferometry on the basis of Fresnel-zone-type space-time domain interferograms of the Purkinje-Sanson reflexes. The eye to be ...  
WO/2017/187510A1
The present disclosure pertains to a distance measurement device with which it is possible to highly accurately measure the distance to a physical object. The distance measurement device is provided with a light source unit for emitting ...  
WO/2017/189942A1
A beam-shaping optical system includes a sheath defining a central cavity having an inner wall, an optical fiber positioned within the cavity and engaged with the inner wall of the sheath, and a beam-shaping insert positioned within the ...  
WO/2017/190055A1
Nonlinear interferometers include a nonlinear optical medium that is situated to produce a conjugate optical beam in response to a pump beam and a probe beam. The pump, probe, and conjugate beams propagate displaced from each other along...  
WO/2017/183017A1
A measurement system is presented for use in metrology measurements on patterned samples. The system comprises: at least one light source device configured to generate broadband light, at least one detection device configured to provide ...  
WO/2017/182107A1
In a method for measuring the depth of the vapour cavity (88) during an industrial machining process with a high-energy beam (19), an optical measuring beam (70a) is directed towards the base of a vapour cavity (88). An optical coherence...  
WO/2017/184345A1
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 single mode fiber optically coupled within the probe body transmits a sourc...  
WO/2017/178306A1
The present invention relates to a method (100) for inspecting and measuring a face of an object comprising at least two surfaces that are offset depthwise with respect to each other, said surfaces in particular forming a stair or a tren...  
WO/2017/180543A1
A mobile or portable device comprises an illuminating arrangement comprising a light source, and an amplitude splitting interferometer configured to form an interferogram of light emitted by the light source. The illuminating arrangement...  
WO/2017/181200A1
Systems, methods and apparatuses for performing wound analysis using THz imaging are provided. Due to the large complex component of water's dielectric constant in the THz regime, and the relative frequency invariance of non-aqueous tiss...  
WO/2017/181201A1
Methods and apparatus for corneal imaging and sensing are provided. Apparatus capable of utilizing single or multiple frequency emissions at terahertz (THz) wavelengths to create reflectivity maps of the cornea in either a contact or non...  
WO/2017/180129A1
Fabry-Perot based optical computing devices and temperature sensors are disclosed for a number of applications including, for example, in-situ downhole fluid analysis and temperature detection.  

Matches 1 - 50 out of 10,912