Abstract: Methods, systems, and devices involving patterned radiation are provided in accordance with various embodiments. Some embodiments include a device for projecting pattern radiation. Some embodiments include a method for estimating coordinates of a location on an object in a 3D scene. Some embodiments include a system for estimating the coordinates of a location on an object in a 3D scene. A variety of radiation patterns are provided in accordance with various embodiments. Some embodiments may relate to the use of patterned illumination to identify the angular information that may be utilized to measure depth by triangulation.

Abstract: A tamper seal detection system for detecting a sealing sticker on a packaging box includes a housing at least partially bounding an inspection zone, the inspection zone being configured to receive the packaging box. A first sensor is configured to detect the presence of the first sealing sticker located on the packaging box when the packaging box is received within the inspection zone. A push guide is movable relative to the inspection floor between a first position and a spaced apart second position and can be used to push the packaging box out of the inspection zone.

Abstract: A gas analyzer is provided, capable of measuring specific gas amount information within a measurement target gas in which pressure varies greatly. The gas analyzer includes a calculation member for calculating specific gas amount information of the nth cycle, a gas pressure change amount calculation unit for calculating an amount of gas pressure change at each time, and a correction signal creation member for generating a time changing, corrected light intensity at each wavelength ?, by performing a fitting process using the time-changing intensity over a long time period in a time zone in which the amount of gas pressure change is small but using the time-changing intensity over a short time period in a time zone in which the amount of gas pressure change is large.

Abstract: An imaging laser range finder including an objective lens having an optical axis, an object side, and an image side, a controllable pixelated light modulator disposed along the optical axis on the image side of the lens, and a detector disposed optically downstream from the pixelated light modulator on the image side of the lens. The controllable pixelated light modulator is advantageously a MEMS-based system such as a digital mirror device (DMD). An increased field of view may be obtained by incorporating a pair of opposing surface reflectors between an imaging lens and the controllable pixelated light modulator. Associated methods are disclosed.

Abstract: An apparatus, a method and a system for the parallelized recording of at least one variable during a biological/chemical process are disclosed. A matrix, which has at least one container and which can be positioned on a measurement carrier, is provided to accommodate the liquid samples. A measuring unit, which comprises a controllable radiation source for electromagnetic radiation and at least one sensor for detecting electromagnetic radiation, is fixedly disposed in or on the measurement carrier. When at least one matrix with the containers is placed onto the measurement carrier, the respective measuring unit is assigned to the base of each container from the outside. During the measurement by the measuring unit, a movement device is used to move the measurement carrier with a defined radial movement about a fixed axis orthogonal to the gravitational force.

Abstract: Provided is a sensor head that can be miniaturized without compromising the measurement accuracy. A case of the sensor head includes a first case part and a second case part respectively having a substantially cylindrical shape with an axis, i.e., optical axis, as a central axis and being opened at an end part, and a connection member having a substantially annular shape with the axis as a central axis. The first case part and the second case part are connected to each other by screwing female thread parts and respectively formed on the inner circumferential surfaces thereof to a male thread part of the connection member.

Abstract: A method for authenticating an object, comprising determining a physical dispersion pattern of a set of elements, determining a physical characteristic of the set of elements which is distinct from a physical characteristic producible by a transfer printing technology, determining a digital code associated with the object defining the physical dispersion pattern, and authenticating the object by verifying a correspondence of the digital code with the physical dispersion pattern, and verifying the physical characteristic.

Abstract: The present invention belongs to the field of laser plasma emission spectrometry, and in particular relates to a method for improving the detection sensitivity on a carbon element in laser-induced breakdown spectroscopy.

Abstract: A spectrometer includes an illuminating section; a receiving section configured to detect radiation reflected from an object including an optically inhomogeneous scattering medium; a hardware section configured to obtain a solution of an inverse problem to reconstruct an absorption spectrum of the optically inhomogeneous scattering medium, wherein the illuminating section includes at least one light-emitting diode source, a radiation spectral curve of which is divided, by at least two spectral filters having different spectral transmission curves, into at least two spectral regions, to form an equivalent radiation spectrum from at least two spectral sources, and wherein the hardware section applies the solution of the inverse problem based on information about a spectral content of the radiation of the illuminating section, a signal obtained in a form of a response from the optically inhomogeneous scattering medium, and a spectral sensitivity curve of the receiving section.

Abstract: An on-line measuring system, a datum calibrating method, a deviation measuring method and a computer-readable medium are provided. The datum calibrating method includes following steps. A work piece is scanned by a scanning unit to obtain a global point cloud data. A local CAD data of the work piece is obtained according to a predetermined range. A local CAD geometric feature of the local CAD data is obtained. A local point cloud data of the global point cloud data is obtained according to a local range corresponding to the predetermined range. A local scanning geometric feature of the local point cloud data is obtained. The local scanning geometric feature and the local CAD geometric feature are compared to obtain at least one spatial freedom limit. A system basis is obtained according to six spatial freedom limits, if the number of the at least one spatial freedom limit reaches six.

Abstract: The detection chip according to the present invention has an accommodating part, a metal film, a first reaction field, and a second reaction field. The accommodating part accommodates a liquid. The metal film is arranged in a bottom part of the accommodating part so that one face thereof faces into the accommodating part. The first reaction field and the second reaction field are arranged in mutually different regions on one face of the metal film. A capture body is immobilized in the first reaction field and the second reaction field. When the liquid is accommodated in the accommodating part, the depth of the liquid on the first reaction field differs from the depth of the liquid on the second reaction field.

Abstract: A chromatic confocal sensor includes: a light source portion that emits a plurality of light beams having different wavelengths; a plurality of optical heads that converge the plurality of light beams emitted from the light source portion at different focal positions and emit measurement light reflected by a measurement point at the focal positions; a spectrometer including a line sensor, and an optical system that includes a diffraction grating that diffracts a plurality of measurement light beams emitted from the plurality of optical heads, and emits the plurality of measurement light beams diffracted by the diffraction grating to a plurality of different light-receiving areas of the line sensor; and a position calculation portion that calculates a position of a plurality of measurement points as a measurement target of the plurality of optical heads based on a light-receiving position of the plurality of light-receiving areas of the line sensor.

Abstract: A deformation verification system of a vehicle body includes a dip tank in which fluid is contained. The dip tank has a transparent window from the outside to see the inside. A moving device is configured to lower the vehicle body into the fluid, to move the vehicle body in the fluid and to raise the vehicle body. A camera is installed to detect the form of the vehicle body through the transparent window.

Abstract: An approach to noninvasively and remotely detect the presence, location, and/or quantity of a target substance in a scene via a spectral imaging system comprising a spectral filter array and image capture array. For a chosen target substance, a spectral filter array is provided that is sensitive to selected wavelengths characterizing the electromagnetic spectrum of the target substance. Elements of the image capture array are optically aligned with elements of the spectral filter array to simultaneously capture spectrally filtered images. These filtered images identify the spectrum of the target substance. Program instructions analyze the acquired images to compute information about the target substance throughout the scene. A color-coded output image may be displayed on a smartphone or computing device to indicate spatial and quantitative information about the detected target substance.

Abstract: An articulated sensor head includes three different sensor modules. A first of the sensor modules is carried on an extended shank that is mounted in a pivotable fashion from an articulating wrist. A housing carrying a second and a third of the sensor modules is releasably fastened to the extended shank. The second and third sensor modules are carried by the housing in a fixed angular orientation with respect to an orientation of the first sensor module.

Abstract: Provided is an optical source apparatus that may generate two different optical frequency combs. The optical source apparatus includes an optical resonator and a continuous wave laser emitting laser light having a spectrum component corresponding to a resonance frequency of the optical resonator, and the optical resonator is configured to generate a first frequency comb and a second frequency comb having different modes by interacting with the laser light emitted by the continuous wave laser.

Abstract: A non-destructive method of estimating hematocrit (Hct) of whole blood from a dried blood sample prepared from the whole blood, the method comprising: a) determining the amount of hemoglobin derivatives comprising oxyhemoglobin, met-hemoglobin and hemichrome (total hemoglobin) in a dried blood sample, wherein the sum of the amounts of the hemoglobin derivatives remains constant in the dried blood sample in function of time, and b) estimating the hematocrit from the sum of the amounts of the hemoglobin derivatives, wherein the hematocrit is estimated using a calibration curve providing a correlation between hematocrit and the amount of the hemoglobin derivatives in a dried blood sample. The amount of the hemoglobin derivatives is preferably determined by measuring the reflectance, absorbance, or transmittance of the dried blood sample at the quasi-isosbestic point of the hemoglobin derivatives about 589 nm or at multiple wavelengths within the range of 450 to 750 nm.

Abstract: A wearable device includes a measurement device adapted to be placed on a wrist or ear having a light source with LEDs to measure physiological parameters. The measurement device generates an optical beam having a near infrared wavelength between 700-2500 nanometers by modulating the LEDs, and lenses to deliver the beam to tissue, which reflects the beam to a receiver having spectral filters in front of spatially separated detectors coupled to analog to digital converters that generate at least two receiver outputs. Signal-to-noise ratio of the beam reflected from the tissue is improved by comparing the receiver outputs, and by increasing light intensity from the LEDs. The receiver is synchronized to the modulation of the LEDs and uses a lock-in technique that detects the modulation frequency. The measurement device generates an output signal representing a non-invasive measurement on blood within the tissue.

Abstract: A method and spectral light-based apparatus with an embedded (built-in) spectral calibration module for acquiring multi-spectral reflectance images from a digital camera are disclosed. The apparatus may be an attachment device, which may be integrated with a consumer digital camera (such as smartphone camera), and may measure and/or estimate spectral reflectance and true color values for an object recorded by the camera.

Abstract: Exemplary methods and systems for incorporating bio-sensors in drones to wirelessly detect biological molecules and hazards without exposing an operator to harmful contaminants or conditions. Bio-sensors can incorporate simultaneous dual-detection methods to ensure accuracy of measurements. Methods of operation include registering blank and safe air profiles for comparison against unknown air profiles to accurately determine the presence of bio-contaminants in unknown air.