Abstract: A spectrally broadened radiation apparatus, including a laser configured to emit, through an output of the laser, radiation substantially only in the visible region of the electromagnetic spectrum, the radiation having a nominal wavelength, and an optical fiber optically coupled to the output of the laser, the optical fiber having an input to receive the radiation from the laser and having an output to provide spectrally broadened output radiation, the optical fiber configured to spectrally broaden the radiation from the laser to a spectral width of at least 0.5 nm around the nominal wavelength.

Abstract: A Raman spectroscopic measurement system for measuring the material composition of a mixed phase fluid having a gas phase dispersed in a liquid phase or vice versa is disclosed, which includes an insert to be inserted into a process. The insert includes a measurement chamber partially defined by a phase separating membrane that enables the gas phase to diffuse into and out of the measurement chamber and facilitates coalescing of the liquid phase which into a collector. A first probe of the measurement system is configured to transmit excitation light into the measurement chamber and to receive a Raman signal emanating from the gas phase therein, and a second probe is configured to transmit excitation light into the drain and to receive a Raman signal emanating from the liquid phase therein. The measurement system further includes a spectrometer to determine the material composition of the fluid from the Raman signals.

Abstract: The present invention relates to digital pathology, and relates in particular to a digital pathology scanner illumination unit. In order to provide digital pathology scanning with improved illumination, a digital pathology scanner illumination unit (10) is provided that comprises a light source (12), a light mixing chamber (14), and a light diffuser (16). The light source comprises a plurality of light elements (18) that are arranged longitudinally along a linear extension direction. The mixing chamber comprises a transparent volume (22) providing a mixing distance (DM) between the plurality of the light elements and the light diffuser such that light with a uniform intensity is provided at a downstream edge (26) of the mixing chamber; and the mixing chamber is arranged, in terms of light propagation, between the plurality of the light elements and the light diffuser.

Abstract: A series of optical spectral sensors for gas and vapor measurements using a combination of solid-state light sources (LED or Broadband) and multi-element detectors, housed within an integrated package that includes the interfacing optics and acquisition and processing electronics. The sensor is designed to be produced at a low cost and capable of being fabricated for mass production. Spectral selectivity is provided by a custom detector eliminating the need for expensive spectral selection components. The multi-component gas monitor system of the present invention has no moving parts and the gas sample flows through a measurement chamber where it interacts with a light beam created from the light source, such as a MEMS broad band IR source or a matrix of LEDs. A custom detector(s) is/are configured with multi-wavelength detection to detect and measure the light beam as it passes through the sample within the measurement chamber.

Abstract: An embodiment of the present disclosure provides a spectrum inspecting apparatus. The apparatus includes a laser source; a focusing cylindrical lens configured to converge a light beam onto a sample; a light beam collecting device configured to collect a light beam signal, which is excited by the light beam, from the sample, so as to form a strip-shaped light spot; a slit configured to receive the collected light beam and couple it to downstream of a light path; a collimating device; a dispersing device configured to disperse the collected light beam so as to form a plurality of sub-beams having different wavelengths; an imaging device configured to image the sub-beams on the photon detector array respectively, wherein the light beam emitted from the laser source has a rectangular cross-section, the strip-shaped light spot impinges on the slit and its length is smaller than a length of the slit.

Abstract: One example insect sensing system includes a light emitter configured to emit light; a structured light generator positioned to receive the emitted light and configured to generate structured light from the emitted light; a plurality of light sensors arranged in a line, each of the light sensors oriented to receive at least a portion of the structured light and output a sensor signal indicating an amount of light received by the respective light sensor; a processing device configured to: obtain the sensor signals from each of the light sensors, and determine a presence of an insect based a received sensor signal from at least one light sensor, the sensor signal indicating a reduced amount of received light by the at least one light sensor. Another example insect sensing system includes a camera comprising an image sensor and a lens having an aperture of f/2.8 or wider; and a processor configured to obtain an image from the camera and detect an insect in the image.

Abstract: Methods and systems to extract a spectrum of a hyperspectral interferogram, with innovative treatment of off-axis spectral correction and other features, which may be efficiently performed on-board a satellite.

Abstract: A device for imaging the surfaces of a sample having topography with the aid of confocal microscopy, in particular confocal Raman and/or fluorescence microscopy, comprising a first light source, in particular a laser light source for generating excitation radiation, in particular Raman radiation and/or fluorescence radiation and a second light source, wherein the first laser light source emits radiation in a first wavelength range and the second light source emits radiation in a second wavelength range, wherein the first wavelength range and the second wavelength range do not overlap.

Abstract: Sensor calibration methods and systems can for providing accurate color values are disclosed. In one example, a method includes obtaining color measurements that indicate an amount of ambient light, as well as clustering the color measurements, and storing cluster parameters for the clustered color measurements. The method can further include automatic calculation of, for each cluster, generic transformation parameters for conversion of a color measurement to a calibrated color value. In another example, a method can include exposing a light sensor to a calibration ambient lighting, calculating sensor correction parameters for the light sensor, and storing the calculated parameters. As an additional example, an electronic device is adapted to determine calibrated color values with machine readable media storing cluster parameters, sensor correction parameters, and generic transform parameters used by the electronic device to calculate calibrated color values for ambient light sensor measurements.

Abstract: A Raman spectrum inspection apparatus and a security monitoring method for a Raman spectrum inspection apparatus are provided. The Raman spectrum inspection apparatus includes: a laser device configured to emit an exciting light; an optical device configured to guide the exciting light to an object to be detected and collect a light signal from the object; a spectrometer configured to split the collected light signal to generate a Raman spectrum of the object; and a security detector configured to detect an infrared light emitted from the object.

Abstract: A probe system for measuring a measurement object in optical and tactile fashion is provided which includes a tactile sensor. The tactile sensor includes a tactile probe element. The tactile probe element has a sensor surface and is configured to probe the measurement object in a tactile fashion at at least one probing point on the sensor surface. The probe system further includes a microscope camera which includes an illumination device configured to produce an illumination light beam. The microscope camera further includes a microscope optical unit configured to focus the illumination light beam in the probing point and to produce a magnified image of the measurement object in an image plane. The microscope camera also includes an image capture device configured to record the magnified image and is at least partly arranged in the tactile probe element.

Abstract: A cell analyzer and a sorting method for the cell analyzer are disclosed. Multiple optical signals generated by each of particles irradiated with light in a blood sample in a detection region are collected. The particles includes a first category of particles and a second category of particles. For each of the particles, Intensities of a first group of optical signals, which includes at least two optical signals selected from the multiple optical signals, and a pulse width of a second group of optical signals, which includes at least one optical signal selected from the multiple optical signals are acquired. For each of the particles, one or more reinforcement signals related to the particle are calculated based on an intensity of a first optical signal selected from the first group of optical signals and a pulse width of a second optical signal selected from the second group of optical signals, where the first optical signal is as same as or different from the second optical signal.

Abstract: The invention relates to a method for electronically analyzing a time-variant signal (Ue(t)) having at least one extreme value, the amplitude and time of which are to be detected, by means of a detection circuit that operates as a peak value store and follows the time-variant signal after a threshold value (Us) is exceeded until the maximum amplitude is reached, wherein exceedance of the extreme value results in a peak indicator signal (Usi(t)) being generated and the maximum amplitude being stored, which is characterized in that to capture more than one extreme value in the time-variant signal, the tracking of the signal (Ue(t)) is deactivated after production of the first peak indicator signal and after a drop below the threshold value and, after the signal exceeds the threshold value again as time progresses, further tracking of the signal (Ue(t)) is activated until the next extreme value to be detected is reached and a further peak indicator signal (Usi(t)) is generated and this further maximum amplitude

Abstract: This calibration apparatus calibrates a camera mounted on a vehicle and includes: an image obtaining unit that obtains an image of outside of the vehicle; and a calibration unit that calibrates a camera parameter which is the roll angle and/or the pitch angle of the camera by using corresponding feature points in an image of the vehicle captured before a change in the attitude thereof and in an image captured after the change in the attitude thereof.

Abstract: A polarization property image measurement device includes: a first radiation unit that radiates light beams in different polarization conditions onto a target object after subjecting the light beams to intensity modulation at frequencies different from one another; a light receiving unit including first photoelectric conversion units that photoelectrically convert the light beams having been radiated from the first radiation unit and scattered at the target object in correspondence to each of the different polarization conditions, and second photoelectric conversion units that photoelectrically convert visible light from the target object; and a processor that detects signals individually output from the first photoelectric conversion units at the different frequencies and differentiates each signal from other signals so as to determine an origin of the signal as one of the light beams; and creates an image of the target object based upon signals individually output from the second photoelectric conversion un

Abstract: An object detection system uses a change in a linear polarization statistic between a first image at a first time and a second image at a second time to determine the presence or the likelihood of an object beneath a surface. The presence of the object may be determined by regions of anomalously high changes in the polarization statistic. The system may use a polarization change detection detector which may simultaneously capture images in multiple polarization channels. Further, the polarization change detection detector may be coupled with a laser interferometry system.

Abstract: A wavelength calibration apparatus includes a light source configured to deliver a backlight beam characterized by a backlight spectrum. The apparatus includes a gas reference cell configured to absorb light from the backlight beam and transmit an imprinted light beam characterized by an imprinted light spectrum. The apparatus further includes a spectrometer configured to (i) receive the transmitted imprinted light beam from the gas reference cell and to apply a plurality of reference spectral selection factors to spectrally resolve the imprinted light beam into reference indicia groups, (ii) detect a plurality of reference spectral power readings, and (iii) deliver a reference dataset for associating the reference spectral power readings with the reference spectral selection factors. A wavelength calibrator of the apparatus determines a wavelength calibration factor based on a difference between the reference dataset and a standard dataset.

Abstract: A monitoring probe is for monitoring a fluid inside a process system. The probe has a first portion comprising a plurality of optical sensors provided along a waveguide for monitoring a plurality of measurands from the fluid, wherein each optical sensor is configured to monitor at least one measurand from the fluid. The first portion of the probe is elongate and is configured to be inserted through an aperture of the process system into a chamber of the process system such that the optical sensors are in communication with the fluid. The probe further has an attachment element for securing the probe to the process system.

Abstract: Around a crankshaft (S) supported by a support device (10), a first shape measuring device (31) to a fourth shape measuring device (34) are disposed, and the crankshaft (S) and the first shape measuring device (31) to the fourth shape measuring device (34) are relatively movable in an axial direction (X direction) of the crankshaft (S). The first shape measuring device (31) and the third shape measuring device (33) are disposed so as to face to one X direction and acquire partial shape information (including the other side surfaces in the X direction of counterweights (S2)) of the crankshaft S, and further, the second shape measuring device (32) and the fourth shape measuring device (34) are disposed so as to face to the other X direction and acquire partial shape information (including one side surfaces in the X direction of the counterweights (S2)) of the crankshaft S. This makes it possible to accurately inspect a shape of the crankshaft (S) in a short time.

Abstract: The disclosed embodiments include a light detection and ranging (LIDAR) system. The LIDAR system includes a modular LIDAR device, which includes a scanner component and a structurally separate base component. The scanner component is mountable on an external surface of a vehicle, and includes a light source and detector to capture LIDAR data including a measure of a distance to an object relative to the vehicle. The scanner component also includes a communications transmitter to transmit LIDAR data indicative of the distance, and a power receiver to wirelessly power the scanner component. The base component is at least partially mountable on an interior surface of the vehicle, and includes a power transmitter to wirelessly power the scanner component, a communications receiver to wirelessly receive the LIDAR data, and a processor to enable autonomous or semi-autonomous navigation of the vehicle based on processed LIDAR data.