Abstract:
A system includes a computational system to receive a design of an integrated computational element (ICE) including specification of a substrate and a plurality of layers, their respective target thicknesses and complex indices, such that a notional ICE fabricated based on the ICE design is related to a characteristic of a sample. Additionally, the system includes a deposition chamber including a deposition source to provide a deposition plume having a plume spatial profile, and a support to support a plurality of instances of the substrate during fabrication of a plurality of instances of the ICE. The support is spaced apart from the deposition source and has a shape that corresponds to the plume spatial profile, such that when the supported instances of the substrate are distributed over the support, thicknesses of instances of each of the deposited layers are substantially uniform across the plurality of instances of the ICE.
Abstract:
Apparatus for performing Raman spectroscopy may include a first laser source having a first emission wavelength and a second laser source having a second emission wavelength. A separation between the first and second emission wavelengths may correspond to a width of a Raman band of a substance of interest. A switch may provide switching between the first and second laser sources. An ensemble of laser emitters may be provided. A Bragg grating element may receive laser light from the ensemble. An optical system may direct light from the Bragg grating element into an optical fiber. A combined beam through the optical fiber may contain light from each of the emitters.
Abstract:
Apparatus for performing Raman spectroscopy may include a first laser source having a first emission wavelength and a second laser source having a second emission wavelength. A separation between the first and second emission wavelengths may correspond to a width of a Raman band of a substance of interest. A switch may provide switching between the first and second laser sources. An ensemble of individually addressable laser emitters may be provided. A Bragg grating element may receive laser light from the ensemble. An optical system may direct light from the Bragg grating element into an optical fiber. A combined beam through the optical fiber may contain light from each of the emitters.
Abstract:
The present invention provides a method of measuring a width of a color filter unit of a liquid crystal panel. The method includes providing a bottom glass substrate having a TFT array thereon; forming the color filter plate locating within an effective region of the liquid crystal panel by photo-etching process, and forming one or more measure modules locating of the liquid crystal panel and on the TFT array by the photo-etching process; and measuring widths of the one or more measure modules out of the effective region to obtain the width of the filter units within the effective region. The method provided is capable of effectively controlling widths of the color filter units formed in process of manufacturing the liquid crystal panel, thus quality of the liquid crystal panel is raised.
Abstract:
A device includes a freely manipulable color-mapping wand. The wand includes at least one color detector for measuring an intensity of light within at least one spectral range that is incident from a region of a surface. A navigation sensor produces a signal that is interpretable to yield a position of at least a portion of the color-mapping wand.
Abstract:
Impinging electromagnetic radiation generates pairs of majority and minority carriers in a substrate. A spectrometer device for detection of electromagnetic radiation impinging on a substrate comprises means for generating, in the substrate, a majority carrier current; at least one detection region for collecting generated minority carriers, the minority carriers being directed under influence of the majority carrier current; and means for determining spectral information based on minority carriers collected at the at least one detection region.
Abstract:
Devices, apparatus and methods are disclosed for non-contact pneumatic sampling and sampling of surfaces, persons, articles of clothing, buildings, furnishings, vehicles, baggage, packages, mail, and the like, for contaminating aerosols indicative of a hazard or a benefit, where the contaminating aerosols are chemical, radiological, biological, toxic, or infectious in character. In a first device, a central orifice for pulling a suction gas stream is surrounded by a peripheral array of convergingly-directed gas jets, forming a virtual sampling chamber. The gas jets are configured to deliver millisecond pneumatic pulses that erode particles from solid surfaces at a distance. In another aspect of the invention, a suction gas stream is split using an air-to-air concentrator so that a particle-enriched gas flow is directed to a particle trap and any particles immobilized in the particle trap (including any adsorbed vapors associated with the particles) are selectively analyzed to detect trace residues associated with explosives.
Abstract:
An infrared sensor module, a touch sensing method thereof, and an auto calibration method applied to the same are disclosed, the touch sensing method includes turning on the infrared sensor module which includes a sensor block with a light receiving region and is arranged to be perpendicular to a surface of a display panel, the light receiving region being divided into m×n blocks (where, each of m and n is a natural number of two or more) arranged in m rows by n columns, each of the blocks having a plurality of light receiving pixels arranged in a row direction, scanning optical signals of each block, selecting the block having maximum output optical signals with respect to the blocks of each column, and summing the optical signals of the light receiving pixels of the block selected from the column.
Abstract:
An ear thermometer with an infrared sensor, a control unit and a power supply unit in a housing has a wireless communication interface. The wireless communication interface is a WLAN or Bluetooth interface for communication with a base station, in which temperature measurement values are displayed and stored.
Abstract:
Techniques for filtering light include, along a central optical axis, an entrance window; a first polarizer, a narrowband polarization-changing material, a second polarizer, and an exit window. The optical paths through the filter are substantively unscattered and pass through unstressed components between the polarizers. The polarization-changing material changes polarization for a narrow wavelength band on the order of about 0.01×10−9 meters and does not condense on optical windows and polarizers during the operational lifetime. An aspect ratio, defined by a distance from the entrance window to the exit window divided by an optical aperture for the entrance window, is less than 4/1. This filter thus transmits light substantively unattenuated in the narrow wavelength band up to a maximum acceptance angle greater than 5 degrees. Combined with optics and imaging detectors, it is suitable for wide area surveillance, including daylight surveillance for combustion like forest fire and missile plume.