Abstract: Improved wafer-scale testing of optoelectronic devices, such as CMOS image scan devices, is provided. A probe card includes an LED light source corresponding to each device under test in the wafer. The LED light sources provide light from a phosphor illuminated by the LED. A pinhole and lens arrangement is used to collimate the light provided to the devices under test. Uniformity of illumination can be provided by closed loop control of the LED light sources using internal optical signals as feedback signals, in combination with calibration data relating the optical signal values to emitted optical intensity. Uniformity of illumination can be further improved by providing a neutral density filter for each LED light source to improve uniformity from one source to another and/or to improve uniformity of the radiation pattern from each LED light source.

Abstract: A spectrum adjuster produces a pure analyte spectrum and includes: a dynamic opacity optic that receives input light, receives an adjustment signal, produces primary adjusted light, and produces secondary adjusted light from the input light based on the adjustment signal; a light source in optical communication with the dynamic opacity optic; a detector in optical communication with the dynamic opacity optic and that receives transmitted light from the sample and produces a transmitted light signal based on an amount of transmitted light received; and an adjustment controller that receives the transmitted light signal, produces the adjustment signal, and communicates the adjustment signal to the dynamic opacity optic.

Abstract: An optical system for inspecting a transparent plate includes a light source for casting incident light onto a face of the transparent plate so that there is a primary reflected light and secondary reflected light from the face of the transparent plate, a photo sensor for receiving light from the face of the transparent plate, and a blocking element for blocking the secondary reflected light while allowing the primary reflected light to reach the photo sensor.

Abstract: An apparatus and method for checking value documents, in particular bank notes, and a value document processing system having at least one sensor for capturing an electromagnetic radiation transmitted by a value document and generating corresponding transmission signals, and an evaluation device for checking whether the value document has a foreign object taking into account the transmission signals. From the transmission signals an edge course of the value document is derived and a rectangle is approximated to the edge course. By comparing the edge course of the transmission image with the rectangle, the presence of a foreign object such as an adhesive tape, can be ascertained.

Abstract: Colorimeter includes an illumination light reception unit, an attached part, a detection unit, a recognition unit, a color measurement control unit, and an output unit. To the attached part, a mask member is attached to cover the illumination light reception unit. The detection unit detects parts disposed on the mask member. The recognition unit recognizes information on the kind of the mask member in accordance with a detection result by the detection unit. The color measurement control unit causes the recognition unit to recognize information on the kind of mask member in accordance with the detection result at a first timing, and on the kind of mask member in accordance with the detection result at a second timing. The output unit performs a predetermined output in response to a discordance between the information on the kind of mask member at the first timing and at the second timing.

Abstract: A backing member (50a) is pressed in a perpendicular direction (D3) by a predetermined sheet conveyed to a colorimetric position (P), and is disposed behind the predetermined sheet at the colorimetric position (P) when viewed from a colorimetric unit (40). A supporter (90) supports the backing member (50a) in a manner that the backing member (50a) can move in the perpendicular direction (D3). Holders (23a, 23b, 23c) hold a color tile member (80a) disposed on the backing member (50a) in a state that the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the color tile member (80a) being thicker than the predetermined sheet and disposed on the backing member (50a) is larger than the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the predetermined sheet.

Abstract: A device for treating a surface, in particular to a cleaning robot, has a detection device for identifying the type of surface, which detection device has a light source for irradiating the surface with light and has a sensor for detecting the light which is reflected by the surface. In order to improve the identification of the type of surface, it is proposed that a three-dimensional screen panel which forms a plurality of partial volumes is associated with the sensor, wherein each partial volume is in each case associated with a different sensor subarea of the sensor, and wherein adjacent sensor subareas are optically separated from one another by means of the screen panel such that light is prevented from passing from a first partial volume to a second partial volume. Furthermore, the invention relates to a method for operating a device for treating a surface.

Abstract: A cell analyzer and a particle sorting method and device are disclosed. The method comprises: acquiring a pulse width of at least one optical signal according to a detected optical signal, selecting at least one optical signal as a combined optical signal, and respectively calculating a signal intensity of the combined optical signal with the pulse width in a combinatorial way to obtain at least one reinforcement signal, where a difference between a first category of particles and a second categories of particles in the reinforcement signal is increased relative to a difference therebetween in the combined optical signal; and on the basis of the reinforcement signal and at least another signal, forming a new scatter diagram, where the at least another signal is one of other reinforcement signals and the optical signal, distinguishing the first category of particles from the second category of particles according to the new scatter diagram.

Abstract: An inspection station includes a conveyor, a first scanner, a second scanner, a controller, and an interface. The conveyor is configured to continuously transport a vehicle body through the station. The first scanner is configured to detect features of the vehicle body and associated feature coordinates relative to a global coordinate system. The second scanner is configured to detect paint thicknesses on surfaces of the vehicle body and associated paint thickness coordinates relative to the global coordinate system. The controller is programmed to map corresponding pairs of the feature coordinates and paint thickness coordinates into a single set of local coordinates having a datum defined by the vehicle body such that each of the local coordinates defines a location of one of the features relative to the datum and one of the paint thicknesses at the location. The interface is configured to display the features and corresponding paint thicknesses.

Abstract: A system and method for inspecting a railway track bed using a plurality of sensors that are synchronized for rapid interrogation of a railway track bed while the sensors are in motion at a high rate of speed.

Abstract: A device for measuring an aberration has an image sensor, projection optics for optically projecting onto the image sensor, an optical unit for influencing the optical projection onto the image sensor so that the result on the image sensor is a multiple image of a plurality of sub-images, wherein the optical unit has at least one region per sub-image, wherein the regions influence different lateral portions of a wavefront incident on the projection optics in different ways, and an evaluator configured to determine information relating to the aberration based on the multiple image.

Abstract: The present disclosure is directed toward a method for aligning a radiation head of a terahertz sensor system with a target surface. The method includes: scanning a selected area of the target surface with a terahertz radiation beam emitted by the radiation head; sensing a peak amplitude for each reflected radiation signal from a plurality of reflected radiation signals received by the radiation head during the scanning of the selected area; and identifying a normal position of the radiation head with respect to the target surface based on a maximum peak amplitude from among the peak amplitudes of the reflected radiation signals.

Abstract: A system and a method are provided for sampling and analyzing organic material, including soil, fertilizer, manure and leaves. A sample container having porous sidewalls and a unique identifier is provided. A geographic position corresponding to a location where a sample was taken is associated with the unique identifier. The sample container with the sample contained therein is received, and the sample is compacted while inside the sample container. The sample is analyzed while inside the sample container using a Laser Induced Breakdown Spectroscopy (LIBS) system and analysis results are generated. The analysis results of the sample are associated with the unique identifier of the sample container.

Abstract: A system and method for shape sensing with optical fiber include collecting (610) shape data from a shape sensing optical fiber device. The shape data are tested (620) to determine data positions that exceed an acceptable threshold based on geometrical expectations of the shape data. The shape data corresponding to the data positions that exceed an acceptable threshold are rejected (640). Acceptable shape data are rendered (650) to provide a stable shape sensing data set.

Abstract: Systems and methods for characterizing solid state lighting devices are provided. In certain examples, systems and methods for measuring various parameters of light emitting diodes (LEDs), characterizing each LED based on the measured parameters and selecting one or more of the characterized LEDs such that the emitted light from each of the selected LEDs is mixed with the light from the other selected LEDs to create a desired overall light output are described.

Abstract: A method for repairing a structure in an additive manufacturing system is provided. The method includes detecting a defect in a structure formed using an additive manufacturing process, the structure including a first surface that faces a powder containing region and a second surface that faces a substantially powder free region, generating a supplemental scan path that covers at least a portion of the structure based on a location of the detected defect, and controlling a consolidation device, based on the supplemental scan path, to remedy the defect.

Abstract: In one embodiment, an apparatus for measuring a color of a non-solid colored sample includes an integrating sphere having a sensor port, a sample port, and a plurality of registration marks affixed to an interior surface of the integrating sphere, outside a periphery of the sample port, a camera positioned near the sensor port, and a plurality of filters positioned between the integrating sphere and camera. An optical axis of the camera extends from the camera, through at least one of the plurality of filters, through the sensor port, to the sample port.

Abstract: There is provided a forming mold 40 made on the basis of a standard more reliable than an average roughness of a surface of a metal film that generates surface plasmon resonance, the forming mold being capable of improving an S/N ratio of an optical element 20. A forming mold 40 for a substrate 21 of an optical element 20 used for measurements utilizing surface plasmon, wherein an Spc value of a molding surface 51t for transferring a shape onto a surface 21a of the substrate 21 on a side facing an object to be measured is equal to or less than 100 [1/mm].

Abstract: A plasma spectroscopic analysis method includes a concentration process of concentrating a target in a sample, in the vicinity of one of a pair of electrodes in the presence of the sample; a plasma generation process of generating plasma in the sample by applying a voltage to the pair of electrodes; and a detection process of detecting emission of the target generated by the plasma, wherein the plasma generation process is performed in the presence of a defoaming agent.

Abstract: Systems and methods for transmitting power and information using acoustic energy produced by transducers are provided. The systems have particular application for powering and communication with electronics through drilling and pipe systems. Pairs of acoustic wedges holding transducers are provided for sending energy and information through a substrate which may be a steel pipe. Each wedge has an angled transducer which can be used to produce shear waves. The waves propagate through the substrate and are received by a second acoustic wedge. The shear waves, on reaching the second acoustic wedge, are converted back into electrical signals by a second transducer. Tangential shear waves, high, shallow wave transmission angles, and direct steel-steel bonding between wedges and substrates may be used.