35results about "Methods for obtaining spatial resolution" patented technology

An apparatus (100) for optically characterizing a textile sample (106) includes a display subsystem (102) including an observation window (108). A radiation subsystem (114) includes a radiation source (120) for directing first, ultraviolet radiation (122) and second, visible radiation (123) toward the sample (106) and causing the sample (106) to produce fluorescent radiation (124) and reflected radiation (125). A sensing subsystem (126) includes an imager (130) for capturing the fluorescent radiation (124) and reflected radiation (125) in an array of pixels (408). A control subsystem (132) includes a processor (136) for controlling the display subsystem (102), the radiation subsystem (114), and the sensing subsystem (126), and for generating a fluorescent and reflected radiation image (400) containing both spectral information and spatial information about the fluorescent radiation (124) and the reflected radiation (125).

The invention relates to a control unit for a fluid control device wherein the control unit comprises a pressure unit for providing positive and / or negative pressure, at least one first control unit outlet being fluidically connectable to a processing device comprising at least one receptacle for receiving a fluid sample, at least one second control unit outlet being fluidically connectable to a treatment device having a chamber for receiving the processing device, and a connection unit by means of which the pressure unit is fluidically connectable or connected with the first control unit outlet and / or with the second control unit outlet wherein the control unit is adapted to control the processing of the fluid sample in the processing device by applying a positive or negative pressure provided by the pressure unit to the first control unit outlet by means of the connection unit and to control a physical state in the chamber of the treatment device.

A method characterizes gas emissions inside an area bounded by first, second, third, and fourth paths. A first spectrometer transmits a first beam along the first path. The first beam is retroreflected back to the first spectrometer, where it is detected to obtain a first signal. A second spectrometer transmits a second beam along the second path. The second beam is retroreflected back to the second spectrometer, where it is detected to obtain a second signal. A third spectrometer transmits a third beam along the third path. The third beam is retroreflected back to the third spectrometer, where it is detected to obtain a third signal. A fourth spectrometer transmits a fourth beam along the fourth path. The fourth beam is retroreflected back to the fourth spectrometer, where it is detected to obtain a fourth signal. The four signals are processed to identify gas sources inside the area.

Method for producing a surface-treated gallium arsenide substrate, comprising the following steps: a) Providing a gallium arsenide substrate; b) Oxidation treatment of at least one surface of the gallium arsenide substrate in the dry state using UV radiation and / or ozone gas; c) Contacting at least one surface of the gallium arsenide substrate with at least one liquid medium; comprising the following sub-steps: ci) Contacting at least one surface of the gallium arsenide substrate with alkaline aqueous solution, c-ii) subsequent contact of at least one surface of the gallium arsenide substrate with water, c-iii) subsequent contact of at least one surface of the gallium arsenide substrate with acidic aqueous solution, c-iv) subsequent further contact of at least one surface of the gallium arsenide substrate with water. d) Marangoni drying of the gallium arsenide substrate.

A device for detecting a mixture ratio of two components of a textile fabric contains a radiation source for transmitting electromagnetic radiation in a spectral band in the direction of the textile fiber structure, a radiation sensor for receiving at least a part of the electromagnetic radiation, and a spectral filter with spectral properties in the spectral band for filtering at least one part of the electromagnetic radiation. The transmittance of the spectral filter in the spectral band has at least one local maximum and at least one local minimum. The spectral properties of the spectral filter in the spectral band are adapted to the spectral properties of the radiation source and each of the two components such that a radiation intensity received by the radiation sensor is a monotonous function of the mixture ratio of the two components. The device is simple in design and allows the use of spatially resolving imaging radiation sensors.

A leak detection system comprises a transmitter, a detector, and an electronic control unit (ECU). The transmitter directs electromagnetic energy with a predetermined wavelength range, such as infrared energy, onto the surface of a product. The product defines a chamber containing a tracer gas. The detector is positioned between the transmitter and the product at an offset distance from the surface. The detector detects the reflected energy. The ECU receives a signal from the detector, displaying a spectrum of the reflected energy, and identifies a detected leak in the product. This involves comparing the spectrum of the reflected energy with a predefined spectrum of the tracer gas. The tracer gas has a wavelength within the transmitter's predefined wavelength range. In response to the leak, the ECU generates an output signal that identifies the presence and location of the leak.

A portable, handheld multi-modal imaging system is disclosed. The multi-modal system comprises a bacterial detection module and a target measurement module. A processor of the system is configured to receive optical signals from the bacterial detection module and the target measurement module and to output a representation of the target.

A refractive index distribution generation device includes a processor and a memory. The processor performs a refractive index distribution generation process of generating a refractive index distribution corresponding to a processing-target image. The refractive index distribution generation process includes an input process of inputting, from the memory, the processing-target image, first refractive index information indicating a refractive index of a first structure, and second refractive index information indicating a refractive index of a second structure different from the first structure, and a setting process of setting respective refractive indexes that constitute a refractive index distribution. The setting process includes a first setting process of setting a refractive index based on the first refractive index information at a position corresponding to a first image region of the processing-target image on the basis of a signal intensity, and a second setting process of setting a refractive index based on the second refractive index information at a position corresponding to an image region different from the first image region of the processing-target image. The first image region is an image region corresponding to the first structure.

Disclosed is a portable handheld imaging system comprising at least one excitation light source, a first image sensor, a first filter, a white light source, a second image sensor, a second filter, a third image sensor, a third filter, a thermal sensor, and a processor configured to receive detected fluorescent and white light optical signals, and outputting a representation of the target surface to a display based on the detected fluorescent and white light optical signals, where the processor is further configured to receive image data from the second image sensor and the third image sensor and output a stereoscopic or three-dimensional image.

The present disclosure relates to a method for localizing or tracking individual emitters in a sample according to the MINFLUX principle, wherein the sample is illuminated at several illumination positions in a close range around the emitter from different illumination directions with modulation light which comprises a linearly or flatly extended intensity minimum. A position of the emitter in the sample is calculated from the emissions of the emitter detected at the illumination positions. The invention further relates to a light microscope for carrying out the method.

A surface water quality monitoring method based on a high spatial resolution satellite includes: step 1. building standard surface water quality pools by mixing natural water bodies with clean water in different proportions to obtain surface water quality data; step 2. obtaining high spatial resolution remote sensing images for processing; step 3. identifying remote sensing bands with higher correlation through correlation analysis by presetting ratio values of remote sensor data bands and the standard surface water quality pools; step 4. building a water quality parameter retrieval model, and comparing and retrieving the remote sensing bands with higher correlation and the surface water quality data to obtain water quality data; and step 5. identifying abnormal points of the water quality based on the water quality data and water quality data threshold of the surface water.

Provided herein are systems, devices and methods for the rapid and accurate measurement of analyte particles binding-induced aggregation of reporter particles. In the presence of analyte particles of interest, reporter particles form aggregates which increase in mean particle size as the concentration of analyte increases. From analysis of the mean particle size, determined from sample frames, the presence and / or concentration of analyte can be determined.

Disclosed are a detection system and an image forming apparatus. A detection system includes a plurality of terahertz light sources, and a plurality of terahertz wave detection devices that detect terahertz waves, wherein the plurality of terahertz light sources includes a first terahertz light source that outputs terahertz waves in a first on / off pattern having a first period, and a second terahertz light source that outputs terahertz waves in a second on / off pattern having a second period different from the first period.

An observation device (1A) is provided with a light source (11), a mirror (22), a condenser lens (24), an objective lens (25), a beam splitter (41), an imaging unit (43), and an analysis unit (50). An analysis unit (50) irradiates an object (S) to be observed with light in each of a plurality of light irradiation directions by changing the orientation of a reflection surface of a mirror (22), and acquires interference intensity images at a reference position from an imaging unit (43) for each of the plurality of light irradiation directions. The three-dimensional refractive index distribution of the object to be observed is obtained by performing necessary processing on the basis of the interference intensity images. As a result, it is possible to achieve an observation device capable of observing an object to be observed while reducing the influence of multiple scattered light even when the object to be observed is a multiple scatterer.

A leak detection system includes an emitter, detector, and electronic control unit (ECU). The emitter directs electromagnetic energy having a predetermined wavelength range, e.g., infrared energy, toward a surface of a product. The product defines an enclosure chamber containing a trace gas. The detector is positioned between the emitter and the product at an offset distance from the surface. The detector detects reflected energy. The ECU receives a signal from the detector that is indicative of a spectrum of the reflected energy and identifies a detected leak in the product. This includes comparing the spectrum of the reflected energy to a predetermined spectrum of the trace gas. The trace gas has a wavelength within the predetermined wavelength range of the emitter. The ECU generates an output signal in response to the leak, with the output signal identifying a presence and location of the leak.

Provided is a semiconductor measurement apparatus including a light source configured to emit light, a digital light processor configured to generate structured light based on the light emitted by the light source, a first polarizer configured to transmit the structured light, a second polarizer configured to transmit light reflected from a sample, passing through the first polarizer, a spectrometer configured to receive light transmitted through the second polarizer, and at least one processor configured to generate polarization data by analyzing the light received by the spectrometer.

A battery sensing system and a method of battery sensing are disclosed. The system includes an optical system configured to provide and direct a light beam through a first optical fiber to one or more cells contained within a battery housing and an analyzer configured to obtain absorption / scattering, fluorescence and / or Raman spectra based on an interaction of the light beam with the one or more cells and provide information on a status of the one or more cells.

The present disclosure relates to the field of a soil analysis apparatus. The apparatus comprises an enclosure, a provision for introducing a soil solution to be analyse, reservoir, a plurality of storage containers to store reagent solution, a frame member having a plurality of apertures to support a plurality of dispensing pipes, at least one pump coupled to a control unit and in fluid communication with the storage containers and the reservoir to dispense a predetermined quantity of the reagent and the soil solution into a receptacle. Further, at least one robotic arm assembly coupled with a control unit, traverses within the enclosure to receive the soil solution and reagents solution and to perform a mixing operation to obtain a mixture of soil solution and reagent solution. Further, an image capturing unit is present to capture images of the mixture to analyse the soil properties and nutrient content.

Provided is a refractive index distribution generation device capable of improving the accuracy of a refractive index distribution of even a thick sample.　This refractive index distribution generation device comprises a processor and a memory. The processor executes refractive index distribution generation processing of generating a refractive index distribution for a processing target image. The refractive index distribution generation processing includes: input processing of inputting, from a memory, the processing target image, first refractive index information indicating the refractive index of a first structure, and second refractive index information indicating the refractive index of a second structure different from the first structure; and setting processing of setting each refractive index constituting the refractive index distribution. The setting processing includes: first setting processing of setting a refractive index, which is based on the first refractive index information, at a position corresponding to a first image region of the processing target image on the basis of a signal strength; and second setting processing of setting a refractive index, which is based on the second refractive index information, at a position corresponding to an image region different from the first image region of the processing target image. The first image region is an image region corresponding to the first structure.

An observation apparatus 1A includes a light source 11, a mirror 22, a condenser lens 24, an objective lens 25, a beam splitter 41, an imaging unit 43, and an analysis unit 50. The analysis unit 50 irradiates an observation object S with light along each of a plurality of light irradiation directions by changing an orientation of a reflection surface of the mirror 22, acquires an interference intensity image at a reference position for each of the plurality of light irradiation directions from the imaging unit 43, and obtains a three-dimensional refractive index distribution of the observation object by performing predetermined processing based on the acquired interference intensity images. Thus, an observation apparatus capable of reducing influence of multiple scattered light and observing an observation object even in the case in which the observation object is a multiple scattering object is realized.

The invention relates to a device (1) for detecting the mixture ratio of two components (41, 42) of a textile fiber structure (4), containing a radiation source (2) for transmitting electromagnetic radiation (3) in a spectrum band in the direction of the textile fiber structure (4), a radiation sensor (8) for receiving at least one part of the electromagnetic radiation (7), and a spectral filter (6) with spectral properties in the spectral band for filtering at least one part of the electromagnetic radiation (5). The degree of transmission of the spectral filter (6) in the spectral band has at least one local maximum and at least one local minimum. The spectral properties of the spectral filter (6) in the spectral band are adapted to the spectral properties of the radiation source (2) and each of the two components (41, 24) such that the radiation intensity received by the radiation sensor (8) is a monotonous function of the mixture ratio of the two components (41, 42). The device (1) is simply constructed and allows the use of spatially resolved imaging radiation sensors (8).

A method characterizes gas emissions inside an area bounded by first, second, third, and fourth paths. A first spectrometer transmits a first beam along the first path. The first beam is retroreflected back to the first spectrometer, where it is detected to obtain a first signal. A second spectrometer transmits a second beam along the second path. The second beam is retroreflected back to the second spectrometer, where it is detected to obtain a second signal. A third spectrometer transmits a third beam along the third path. The third beam is retroreflected back to the third spectrometer, where it is detected to obtain a third signal. A fourth spectrometer transmits a fourth beam along the fourth path. The fourth beam is retroreflected back to the fourth spectrometer, where it is detected to obtain a fourth signal. The four signals are processed to identify gas sources inside the area.

The present disclosure relates to non-invasive nerve identification using snapshot polarimetry. The present disclosure further relates to a system for nerve identification, the system comprising a camera including a sensor, and a filter having a linear polarizer array, an illumination system configured to illuminate a target area with polarized light illumination, the polarized light illumination having at least one predetermined polarization angle, the illumination system including one more light sources, and one or more polarizer filters, and a processor configured to process imaging data obtained from the camera, and output a birefringence map of the target area including indicia of a nerve structure.

Techniques are provided for sensing and using humidity dynamics. In a first set of embodiments, a humidity dynamics sensor includes a chamber that is open only at one wall opening. The sensor also includes a pair of humidity sensors disposed in a wall of the chamber at different distances from the wall opening. Each sensor is configured to measure humidity inside the chamber. The sensor also includes a gasket surrounding the wall opening of the chamber. At least a portion of the wall of the chamber is transparent to at least a portion of photosynthetically active optical wavelengths. The gasket is configured to form an airtight seal with a surface of a subject.

A method for screening molecular crystal megalibraries for non-centrosymmetric structure can include scanning a substrate comprising a plurality of molecular crystals with a tunable laser, a focusing objective, and a detector, to identify molecular crystals emitting a second harmonic generation (SHG) signal. The method also includes correlating the regions having an SHG signal with elemental composition and optical images to identify compositions of molecular crystals having a non-centrosymmetric crystalline structure. The method can be performed at a plurality of measuring temperatures to identify the Curie temperature of a composition. The method can further include designing a composition with a target Curie temperature.

Provided herein are systems, devices, and methods for rapid and accurate measurement of analyte particle binding-induced aggregation of reporter particles. In the presence of analyte particles of interest, the reporter particles form aggregates whose average particle size increases with increasing analyte concentration. From analysis of the average particle size determined from the sample frame, the presence and / or concentration of the analyte can be determined.

Provided is an antibiotic susceptibility evaluation apparatus including a sample unit including a sample and at least an antibiotic disk arranged on the sample, a light source radiating coherent light to the sample unit, an image sensor detecting transmitted light passing through the sample unit to obtain a sample image, and a controller configured to receive a first sample image, which is an image of the sample at an initial time when the antibiotic disk is arranged on the sample unit, and a second sample image, which is an image of the sample after a preset time, to obtain a spatial correlation of an interference pattern between the first sample image and the second sample image, and to evaluate susceptibility of the sample to antibiotics based on the spatial correlation according a position.

This application belongs to the field of coherent diffraction imaging, specifically disclosing a method and system for reconstructing stacked diffraction imaging based on subgradient projection regularization. Through this application, based on the convex problem optimization theory of subgradient projection, a spatially varying gradient weighting function is further introduced into the stacked diffraction imaging reconstruction model to adaptively adjust the update step size, thereby improving the iterative convergence speed. This method can achieve a balanced improvement in convergence speed within the support domain without introducing any additional computational overhead by penalizing or suppressing extreme step sizes during the update process. Furthermore, this method requires no hardware modification, is directly compatible with stacked diffraction imaging models, and reduces the parameter sensitivity of the iterative algorithm during reconstruction, achieving robust convergence without fine-tuning.

A measurement system may direct an illumination beam including at least one of a first frequency comb or a second frequency comb to a sample and generate a sequence of images of the sample based on the first frequency comb and the second frequency comb. The system may include one or more coding optical elements to encode data associated with one or more transfer matrix elements into the sequence of images of the sample. The system may further generate a transfer matrix dataset including measurements of at least one of the one or more transfer matrix elements associated with the sample based on at least one of a spectral, spatial, or temporal analysis of the sequence of images, and generate one or more measurements of the sample based on the transfer matrix data set.

The present invention provides a geological-system based data capture apparatus for capturing data to be used in modifying hyperspectral data relating to a geological structure The data capture apparatus includes a spectral irradiance measuring device for providing spectral irradiance data. The data capture apparatus also includes a visual atmospheric sensor for providing visual atmospheric data. Further, the data capture apparatus includes a data accumulator for accumulating the provided spectral irradiance data and the provided visual atmospheric data. Advantageously, the accumulated spectral irradiance data and visual atmospheric data may be used in modifying the light-sensitive hyperspectral data for improved mapping of the geological structure.