Abstract: According one embodiment, a non-heterodyne radiation imager includes a substrate having a ground plane layer. The radiation imager also includes a plurality of antenna elements operable to receive radiative input. Each support element of a plurality of support elements mechanically couples an antenna element of the plurality of antenna elements to the substrate. A plurality of energy detectors is operable to measure the radiative input received by the plurality of antenna elements.

Abstract: A sensor for detecting intensity of radiation such as of infrared radiation includes an ROIC substrate (9) and a resistance element (1) arranged at a distance of the surface of the ROIC substrate. The resistance element comprises one more semiconducting layers such as a silicon semiconducting layer and a semiconducting layer of a silicon-germanium alloy forming a heterojunction. The semiconducting layer or layers can be doped with one or more impurity dopants, the doping level or levels selected so that the layer retains the basic crystallographic properties of the respective material such as those of monosilicon or a monocrystalline silicon-germanium alloy. The impurity dopants are selected from the elements in groups IE, IV, and V, in particular among boron, aluminium, indium, arsenic, phosphorous, antimony, germanium, carbon and tin. The doping can be abrupt so that there is an interior layer inside said semiconducting layer or layers having a significantly higher doping level.

Abstract: A wall switch motion sensor detects motion using a lens and an infrared detector, and in response performs a function (for example, turns on a light). The motion sensor is also adapted to respond to IR remote control signals of the type customarily used to control electronic consumer devices in the home. In one example, a user uses an ordinary remote control device to transmit a sequence of IR control signals and dead times toward the motion sensor. The detector in the motion sensor detects each IR control signal as an increased amount of IR energy, whereas it detects a dead time as a period of less IR energy. If the periodicity of the sequence is appropriate, then the wall switch motion sensor determines that the sequence is an instruction. In one example, the instruction is to turn on/off the light controlled by the wall switch motion sensor.

Abstract: A switch module, an electronic device using the same and a method for manufacturing the same are provided. The switch module includes a circuit board, an infrared (IR) light receiver, at least one light emitting unit and a cover. The IR light receiver is disposed on the circuit board for receiving an infrared light. The light emitting unit is disposed on the circuit board for emitting a visible light. The cover includes a first casing and a second casing, and covers the IR light receiver. The first casing shields the IR light receiver. The second casing is connected to the second casing. The transparency of the second casing is larger than that of the first casing. The second casing receives the visible light and then the visible light is emitted to the outside of the second casing.

Abstract: According to one embodiment, an optical device comprises a housing. A structure is disposed within the housing. The structure has an optical entrance whereby radiation may enter. An aperture is located between the optical entrance and a radiation detector. At least one brace is rigidly coupled to the structure and the housing.

Abstract: A machine tool monitoring device includes a detection device (32) for detecting the presence of a type of material, in particular human tissue, in a machine tool area (34) via spectral evaluation of radiation (S). The detection device (32) includes a sensor unit (50) having at least one sensitivity range (64) for detecting radiation in a wavelength range (WL2) located at least partially in the infrared spectrum (72).

Abstract: Disclosed are a method and system for tracking multiple infrared signal coordinates. The method for tracking multiple infrared signal coordinates includes: sequentially operating a plurality of infrared generators; photographing the infrared generators; calculating frequency photographed by each infrared generators; and when the calculated frequency at the time of calculating does not meet the reference value, delaying, by a delay time, the flickering of the infrared generator where the frequency does not meet the reference value.

Abstract: In at least one embodiment, a sensing apparatus is provided. The sensing apparatus comprises a substrate, a thermopile, and a readout circuit. The thermopile includes an absorber positioned above the substrate for receiving thermal energy and for generating an electrical output indicative of the thermal energy. The readout circuit is positioned below the absorber and includes at least one first switch positioned therein for being electrically coupled to the thermopile to provide a bypass in the event the thermopile is damaged.

Abstract: According to the present invention, a measurement device includes an electromagnetic wave detector, a phase measurement unit and a deriving unit. The electromagnetic wave detector detects an electromagnetic wave having a frequency equal to or more than 0.02 THz and equal to or less than 12 THz having traveled inside an object to be measured, which is an aggregation of particles. The phase measurement unit measures a change in phase of the electromagnetic wave generated by the travel inside the object to be measured based on a detection result by the electromagnetic wave detector. The deriving unit derives hardness or porosity of the object to be measured based on a measurement result by the phase measurement unit.

Abstract: A terahertz-wave element includes a waveguide (2, 4, 5) that includes an electro-optic crystal and allows light to propagate therethrough, and a coupling member (7) that causes a terahertz wave to enter the waveguide (2, 4, 5). The propagation state of the light propagating through the waveguide (2, 4, 5) changes as the terahertz wave enters the waveguide (2, 4, 5) via the coupling member (7).

Abstract: A liquid crystal panel (10) comprises a liquid crystal injection port (12) for injecting liquid crystal between a pair of substrates, wherein a metal pattern (16) capable of reflecting infrared is provided in a region for providing a sealing resin for sealing the liquid crystal injection port (12).

Abstract: An imaging system (20) includes an array (24) of photonic band gap material cells. The band gap material has an absorption edge at about the emission frequency of a source (22) of electromagnetic energy. Images from a field of view (26) directed onto the photonic band gap array (24) increase the temperature of the illuminated cells, shifting the absorption edge frequency for those cells. A focal plane array (28) detects the electromagnetic radiation transmitted through the photonic band gap array (24) from the source (22). The intensity of the transmitted radiation is proportional to the shift in the photonic band gap edge.

Abstract: An optical position detection device includes a first detection light source unit that outputs a detection light from one side to the other side in a first direction, a second detection light source unit that is separated from the first detection light source unit along a second direction crossing the first direction, and outputs a detection light from the one side to the other side in the first direction, a light detection unit having sensitivity toward the other side in the first direction, and a position detection unit that detects the position of the object based on the light reception in the light detection unit.

Abstract: A method of orienting a semiconductor wafer. The method includes rotating a wafer about a central axis; exposing a plurality of edge portions of the rotating wafer to light having a predetermined wavelength from one or more light sources; detecting a subsurface mark in one of the plurality of edge portions of the rotating wafer; and orienting the wafer using the detected subsurface mark as a reference.

Abstract: The sensing device is provided. A sensing device according to an exemplary embodiment of the present invention includes a lower panel, an upper panel facing the lower panel, a liquid crystal layer positioned between the lower panel and the upper panel, an infrared ray sensor formed in at least one of the lower panel and the upper panel, a visible light sensor formed in at least one of the lower panel and the upper panel, and a backlight device positioned at an outer surface of the lower panel, wherein the backlight device includes a plurality of light emitting members representing different colors and an infrared ray light emitting member.

Abstract: Various techniques are disclosed for providing reference signals to image detectors in accordance with one or more embodiments of the invention. For example, in one or more embodiments, switched capacitors may be used to provide bias voltages to individual unit cells of a focal plane array such that the bias voltages are held by the unit cells over one or more integration periods while the unit cells are decoupled from an input line. As a result, the bias voltages may be free from noise incident on the input line and thus may more accurately bias the individual unit cells.

Abstract: A device and method for diffusion optical tomography are disclosed. The device includes a sensing circuit with a plurality of light sources and sensors and an optical tomography element having a control unit, a computation unit and an image reconstruction unit. First, the computation unit constructs an image model of an object using optical parameters of the object, and performs decomposition on the image model. Then, the control unit instructs the light sources to emit light to the object, and receives a plurality of optical signals generated by the object in response to the light. Finally, the image reconstruction unit combines the optical signals and the decomposed image model and reconstructs an image of the object based on the combination of the optical signals and the decomposed image model.

Abstract: A system and method for fluorescence spectral imaging of target material to detect the presence of a contaminant (such as aflatoxin in corn) is provided. An ultraviolet light source is coupled with a light-excluding compartment. The fluorescence from the UV excited target passes through a filter (liquid crystal tunable, acoustic-optic tunable, a filter wheel, or other wavelength splitting device) and a lens, to a spectral imaging camera. Fluorescence spectral image data from the camera are analyzed by a computer and presented in human-readable form. Aflatoxin detection in contaminated corn kernels is based on peak fluorescence and peak fluorescence shift in the spectral range from 451 nm to 500 nm. Aflatoxin contamination level within the target material is quantified based on peak fluorescence and peak fluorescence shift and computed corn kernel pixel statistics.

Abstract: The invention concerns a passive terahertz radiation source configured to emit electromagnetic radiation having frequency in the range of 10 GHz to 50 THz and a method for generating a terahertz radiation. The passive terahertz radiation source comprises: a source of a pulsed excitation light; an emitter comprising one or more emitter elements, each emitter element comprising a semiconductor layer being arranged such that at least a portion of a first major surface of said semiconductor layer is exposed to the excitation light, wherein each emitter element is configured such that upon exposure to the excitation light, a gradient of the charge carrier density is generated in the semiconductor layer in the area of transition between a first area of the semiconductor layer and a second area of the semiconductor layer, the gradient being substantially parallel to the first major surface of the semiconductor layer.

Abstract: A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction response to changes in amplitude of incident radiation is substantially linear throughout a non-saturation region to enable operation in non-avalanche mode. The system also includes a modulated radiation source, such as a modulated laser, for producing amplitude-modulated radiation with which to direct upon the variable resistor and modulate its conduction response. A voltage source and an output port, are both operably connected to the variable resistor so that an electrical signal may be produced at the output port by way of the variable resistor, either generated by activation of the variable resistor or propagating through the variable resistor. In this manner, the electrical signal is modulated by the variable resistor so as to have a waveform substantially similar to the amplitude-modulated radiation.

Abstract: A system with a first analytical testing device configured collect a first and second signal associated with a characteristic parameter of a sample material, wherein the characteristic parameter is capable of enabling evaluation of ethanol production yield for plant material corresponding to the sample material. A drying unit is configured to drive the sample material to a substantially standard moisture level. A fermentation unit is configured to ferment the sample material. A second analytical testing device is configured to collect a reference measurement associated with the characteristic parameter. The reference measurement is capable of being correlated to the first and second signals for building a calibration model used to evaluate ethanol production yield of plant material corresponding in composition to the sample material. Associated methods are also provided.

Abstract: A novel phase-coded aperture, associated imaging system, and design method is disclosed. The optical imaging system includes a coded-aperture followed optically by a detector array and includes an image processor. A diffraction pattern in the form of a band-limited uniformly redundant array is formed on the detector array when focusable radiation from a point source in object space is modulation by the transmission function of the coded-aperture. Since diffraction effects cannot be ignored in the optical regime, an iterative phase retrieval method is used to calculate the phase-coded aperture transmission function. Correlation type processing can be applied for the image recovery.

Abstract: A physiological sensor having reduced sensitivity to interference includes a light source, a light detector in optical communication with the light source, and a sensor pad at least partially housing the light source and the light detector. The sensor pad is configured to be capacitively isolated from a patient. Moreover, the physiological sensor may be electrically connected to an amplifier having a signal ground and a monitor.

Abstract: An ambit light sensor with a function of IR sensing and a method of fabricating the same are provided. The ambit light sensor includes a substrate, an ambit light sensing structure, an infrared ray (IR) sensing structure, and a dielectric layer. The ambit light sensing structure is located over the substrate for sensing and filtering visible light. The IR sensing structure is located in the substrate under the ambit light sensing structure for sensing IR. The dielectric layer is located between the ambit light sensing structure and the IR sensing structure.

Abstract: A method and device for measuring the soot load in the exhaust gas systems of diesel engines using a sensor which is mounted downstream of a particulate filter and comprises a sensor element, to measure the operability of the particulate filter. According to the method, the soot load of the sensor element is measured resistively or capacitively using electrodes. The measuring voltage of the sensor element is controlled depending on at least one actual operating parameter of the diesel engine.

Abstract: A light emitting unit is positioned to the subject side than a light receiving unit in a sensing device. The light emitting unit includes a light emitting layer, a first electrode, a second electrode which has an opening, and an insulating layer that is provided at a position that corresponds to the opening portion of the second electrode and that partially insulates the first electrode and the second electrode. The light receiving unit includes a light receiving element that receives reflected light. The light blocking layer is provided at a position that corresponds to the opening portion, and an opening portion is formed thereon. In a case when viewed in a plan view, the light blocking layer overlaps the opening portion, and a light receiving face of the light receiving element is positioned within the opening.

Abstract: A pyroelectric infrared body sensing switch circuit comprises an amplification circuit, a delay unit, an execution unit, and an infrared detection circuit comprising one or more pyroelectric infrared detection elements. A power unit comprises first and second power circuits. Each of the first and second power circuits receives AC power and supplies DC power through RC voltage reduction, full-wave rectification, filtration, and voltage stabilization. The first power circuit supplies power to the execution unit and the second power circuit supplies power to the infrared detection circuit, the amplification circuit, and the delay unit. A signal outputted from the infrared detection circuit is inputted to the amplification circuit. A signal outputted from the amplification circuit controls the activation of the delay unit. A signal output from the delay unit controls the execution unit.

Abstract: Techniques are disclosed to provide a reference signal via a switched capacitor filter for image detector arrays in accordance with one or more embodiments. For an example embodiment, a method of providing a sampled and filtered reference signal to an image detector array includes receiving a reference signal; sampling the reference signal with a first capacitor to store a sampled reference signal based on the reference signal; coupling a second capacitor to the first capacitor to share charge stored on the first and second capacitors to generate the sampled and filtered reference signal to store on the second capacitor; and decoupling the second capacitor from the first capacitor, wherein the sampled and filtered reference signal is stored on the second capacitor to provide for one or more image detectors within the image detector array.

Abstract: A glass substrate having a fine structure on the surface thereof, wherein said glass substrate is made of vanadium-containing glass and said vanadium-containing glass has a resistivity no higher than 109 ?·cm, with the content of vanadium (in the form of V2O5) being no less than 10 wt % and no more than 60 wt %. The glass substrate prevents dust attraction and retains its antifouling properties over a long period of time.

Abstract: Image apparatus, eyewear, and imaging methods are disclosed. The image apparatus may include a waveguide substrate having a viewing region and a detecting region. The viewing region includes a plurality of parallel partially reflective surfaces. Light from a scene may be received in the viewing region of the waveguide substrate with a portion passed through the viewing region and another portion reflected toward the detecting region of the waveguide substrate. The detecting region may direct the other portion toward a detector.

Abstract: Detector for terahertz radiation with a micro-plasma cell (1) having a cavity (5) including a plasma in operation when applying a DC bias to the micro-plasma cell (1). Furthermore, the detector is provided with read-out electronics (20) connected to the micro-plasma cell (1). The read-out electronics measure changes of an electron density in the plasma in the micro-plasma cell (1) with respect to the DC bias provided electron density. The cavity (5) includes a gas composition near atmospheric pressure or higher, and the gas composition includes a Penning mixture.

Abstract: A food quality examination device using a high-sensitivity light-receiving element. The light-receiving element includes a III-V compound semiconductor stacked structure including an absorption layer having a pn-junction therein, wherein the absorption layer has a multiquanturn well structure composed of group III-V compound semiconductors, the pn-junction is formed by selectively diffusing an impurity element into the absorption layer, a diffusion concentration distribution control layer composed of III-V group semiconductor is disposed in contact with the absorption layer on a side of the absorption layer opposite the side adjacent to the group III-V compound semiconductor substrate, the bandgap energy of the diffusion concentration distribution control layer is smaller than that of the group III-V semiconductor substrate, the concentration of the impurity element selectively diffused in the diffusion concentration distribution control layer is decreased to be 5×1016/cm3 or less toward the absorption layer.

Abstract: Microbolometer pixel structures including membrane material in a current path between at least two spaced electrodes, the membrane material having multiple openings defined in the current path that are configured such that substantially the entire volume of electrically conductive membrane material in at least a portion of the current path contributes to conduction of current between the electrical contacts.

Abstract: Systems and methods are disclosed for the detection and identification of objects, wherein an illumination device emits polychromatic light in the infrared range, creating a light curtain, or an essentially two-dimensional area of light in the X and Z axis. The light from the light curtain and light reflected or transmitted by an object in the light curtain is imaged, via aperture-imaging optics, onto an aperture that is in the optical path and behind the aperture-imaging optics. The aperture is an elongated opening extending along the Z axis. A wavelength-dispersive device, such as a grating, diffracts light admitted by the aperture wavelength-dispersively in a diffraction direction along the Y axis. An image sensor detects the diffraction image and generates image signals which are analyzed to identify the materials comprising the object. An output signal may be generated in response to the material identified.

Abstract: A thermoelectric infrared detector. The detector includes an absorption platform comprising a material that increases in temperature in response to incident infrared radiation, the platform covering substantially an entire area of the detector. The detector includes a thermocouple substantially suspended from contact with a substrate by at least one arm connected to the substrate and a thermal connection between the absorption platform and the thermocouple.

Abstract: According to some embodiments, a method and apparatus are provided to receive a first signal from a sensor, determine that a user is present based on the received first signal, receive a second signal from the sensor, and determine if the user is still present based on the received second signal.

Abstract: A photonic measurement system, such as an atomic absorption spectrometer, includes source, sample and detection modules that are interconnected by fiber optic cables. A first set of fiber optic cables guides light from one or more light sources in the source module to each of at least two analysis chambers in the sample module. A second set of fiber optic cables guides light from the analysis chambers to a detector in the detection module. The detector provides to a processing sub-system signals that correspond to intensities of the guided light. One analysis chamber is selected to perform a sample analysis at a given time, and the processing sub-system processes the signals associated with the selected analysis chamber as measurement signals. The processing sub-system may further process the signals associated with a given non-selected analysis chamber as reference signals.

Abstract: A process for the non-destructive determination of the quality of a weld seam, the process steps comprising: providing a first and a second component; connecting the first and second components by a weld seam produced by a welding operation; and measuring a surface temperature of the weld seam and surface temperatures of areas of the first and second components adjacent to the weld seam that were heated by the welding operation. A system for carrying out the process for the non-destructive determination of the quality of a weld seam, the system comprising: a measuring device, an analyzing unit, and a welding device.

Abstract: In a method for detecting objects by utilizing near infrared (NIR) light and far infrared (FIR) light, an NIR environment image and an FIR environment image generated by photographing a current environment with the NIR light and the FIR light respectively are received. The NIR and FIR environment images are respectively analyzed to obtain several NIR-environment-image analysis values and FIR-environment-image analysis values. A current-environment category is generated according the NIR-environment-image analysis values and the FIR-environment-image analysis values. First object detection information and second object detection information are obtained by respectively performing object-detection onto the NIR environment image and the FIR environment image. Information of at least one detected object in the current environment is obtained according to the current-environment category, the first object detection information and the second object detection information.

Abstract: A modular multi-use thermal imaging system is disclosed. In one embodiment, the modular multi-user thermal imaging system includes a modular mounting structure and a modular multi-use thermal imaging device configured to attach to one or more structures via the modular mounting structure.

Abstract: An electromagnetic wave measurement device includes an electromagnetic wave outputter that outputs an electromagnetic wave having a frequency equal to or more than 0.01 THz and equal to or less than 100 THz toward a device under test. An electromagnetic wave detector detects the electromagnetic wave which has transmitted through the device under test. A relative position changer changes a relative position of an intersection of an optical path of the electromagnetic wave transmitting through the device under test and the device under test, with respect to the device under test, so that the intersection is at a predetermined relative position due to the refraction of the electromagnetic wave by the device under test. A characteristic value deriver derives a characteristic value of the electromagnetic wave based on a detection result of the electromagnetic wave detector, the characteristic value being associated with the predetermined relative position.

Abstract: Reflective means comprising substrates, selectively reflects electromagnetic radiation whose frequency lies between 3×109 Hz and 1013 Hz, and includes, for example, a layer of high resistivity silicon, on which the radiation is arranged to be incident, and means for selectively generating charge carriers in the layer to reflect the radiation, for example, by illuminating a face of the substrate with electromagnetic radiation whose wavelength lies between 5 ?m and 100 mn in order to generate the charge carriers. The reflective means may form part of an imaging device in which a scene to be imaged is illuminated by radiation which passes through the reflective means in a coaxial arrangement, the reflected radiation being received by the reflective element while the reflective region is scanned over its entire surface, to produce a stream of radiation reflected from the scene which can be detected and used to drive a display.

Abstract: A system for evaluating the susceptibility of a soybean plant to iron deficiency chlorosis is described. Soybean plants are planted in range and rows multiple micro-plots and a cart is used to pass a radiometric sensor over the micro-plots. The cart may have a sensor housing that is divided into multiple partitions with a radiometric sensor assembly positioned within each partition. Each sensor assembly generates a data signal and a computer receives and stores the data signals. The field cart is positioned above the range. The number of partitions corresponds to the number of rows in the range and each sensor assembly is positioned above a single row.

Abstract: A method and apparatus for inspecting a composite structure. A resin inspection system comprises a housing having an open section, a movement system associated with the housing, a light source associated with the housing, an infrared measurement system associated with the interior of the housing, and a visible light sensor system. The movement system is configured to move the housing on a surface of a composite structure. The light source is configured to emit light. The infrared measurement system is configured to generate infrared measurement information from infrared light detected by the infrared measurement system through the open section. The visible light sensor system is configured to generate image information about the surface of the composite structure.

Abstract: An occupancy sensor may include a plurality of user-selectable mounting features that enable the sensor to be mounted to building structure in a variety of ways. The sensor may include: a nipple for engaging a connector associated with the building structure; one or more key hole slots for engaging fasteners associated with the building structure; and one or more flat side surfaces for engaging corresponding flat surfaces of a mounting plate associated with the building structure. A spring on the flat side surface may lock the sensor to the mounting plate. The nipple may be removable to allow the sensor to be flush mounted to the building structure. The sensor may also include a user-adjustable lens that enables a user to make discrete adjustments of the field of view of the sensor according to present levels. Other embodiments are disclosed and claimed.

Abstract: A hob device is provided that has a monitoring unit to monitor a cooking area of a hob. The monitoring unit includes a sensor array of multiple infrared sensors to record infrared light.

Abstract: An apparatus for measuring pungency of red pepper powder includes a near infrared measuring unit; a reference spectrum measuring unit; a red pepper powder injecting unit; a red pepper powder height equalizing unit; a red pepper powder transferring unit; a red pepper powder ejecting unit; a display unit; a button unit; and a measurement controller for, if a reference spectrum measurement opening signal is detected, operating a reference spectrum measurement opening and closing unit, injecting the reference material, measuring the spectrum of the reference material, if the reference spectrum measurement closing signal is detected, operating the opening and closing unit, removing the reference material, closing the opening and closing unit, injecting the red pepper powder, and measuring the near infrared spectrum of red pepper powder, correcting near infrared spectrum data to the spectrum of the reference material, calculating a degree of pungency, and displaying the degree of pungency.

Abstract: Disclosed are a gas flow meter and a method for measuring the velocity of gas, wherein the reliability of real time measurement may be improved and a specific gas may be selected and measured. The gas flow meter includes: at least a gas detecting section for radiating light having a wavelength that is absorbed by a specific gas to the specific gas, of which flow velocity is to be measured, in a mixture gas including at least one gas, detecting the irradiance absorption of the corresponding wavelength of the specific gas, and providing a detection signal corresponding to the detected irradiance and a control section for calculating the flow velocity of the specific gas to be measured in real time based on the detection signal, which is provided from the gas detection section.

Abstract: The invention relates to a portable radiometric imaging device and to a corresponding method, finding a particular application in detecting articles carried by passengers or contained in baggage, for example in airports and train stations. The device includes a plurality of receiver antennas for picking up electromagnetic radiation from a plurality of parts of a body or an article and converting them into a plurality of signals representative of said radiation, a plurality of receiver modules associated with the antennas for receiving the signals representative of the radiation and converting them into a plurality of electrical signals, and a digital processor unit for responding to the electrical signals to create one or more digital signals representative of the electromagnetic radiation for display on a display as an image of the body or article.

Abstract: The present invention may include methods and apparatus for the detection of explosives using near infrared or infrared spectroscopy to detect nitro or even carbonyl groups. Embodiments may include, at least one radiation emitter may emit at least one wavelength towards a target. At least one reflected wavelength may be generated after the wavelength collides with the target. A reflected wavelength may then be detected by at least one detector and analyzed with an analyzer.