Abstract:
In the spectroscopy module 1, a light detecting element 4 is provided with a light passing opening 4b through which light made incident into a body portion 2 passes. Therefore, it is possible to prevent deviation of the relative positional relationship between the light passing opening 4b and a light detection portion 4a of the light detecting element 4. Further, an optical element 7, which guides light made incident into the body portion 2, is arranged at the light passing opening 4b. Therefore, light, which is to be made incident into the body portion 2, is not partially blocked at a light incident edge portion of the light passing opening 4b, but light, which is to be made incident into the body portion 2, can be guided securely. Therefore, according to the spectroscopy module 1, it is possible to improve the reliability.
Abstract:
A hand-held, self-contained, battery-powered test instrument for analyzing composition of a sample includes an exciter for exciting at least a portion of the sample, a compact cross-dispersed spectrometer for receiving an optical signal from the excited portion of the sample and a processor for processing spectral data about the optical signal from the spectrometer. The exciter may include a spark generator and a counter electrode, a laser or other device for generating the optical signal from the sample portion. The spectrometer has a wavelength range broad enough to enable the test instrument to detect and determine relative quantities of carbon, phosphorous, sulfur, manganese, silicon, iron and other elements necessary to identify common alloys. The spectrometer includes a structural member made of a light-weight material having a small coefficient of thermal expansion (CTE). The spectrometer is dimensionally stable over a range of expected ambient temperatures, without controlling the temperature of the spectrometer.
Abstract:
Eine Vorrichtung zur Halterung eines mobilen Farbmessgeräts an einem Messobjekt, insbesondere einem Monitor, umfasst einen flexiblen schlauchförmigen Traggurt (G), der wenigstens teilweise mit einem körnigen Beschwerungsmaterial befüllt und mit einem Befestigungsorgan (1) zur Anbringung am Farbmessgerät (MD) ausgestattet ist. Die Haltevorrichtung umfasst ferner eine mit Mess- und Bedienungsöffnungen ausgestattete Tasche (T) zur Aufnahme des mobilen Farbmessgeräts (MD), wobei der Traggurt (G) an der Tasche (T) befestigt ist. Der Traggurt (G) ist im Wesentlichen als geschlossene Schlaufe ausgebildet und ist mit einem Klettverschluss zur Längenverstellung ausgestattet. Die Haltevorrichtung erlaubt die einfache und bequeme Positionierung des Messgeräts am Monitor und dient gleichzeitig auch noch als Tragriemen.
Abstract:
An optical analyser comprises a light source having a plurality of emitters (4a..e) selectably energisable by means of control unit (12) and computer (10). A tilting filter arrangement (8) is also provided having a plurality of optical interference filters (20c) say. Each filter is simultaneously tiltable to vary a wavelength of incident light from associated emitter, (4c) say, transmitted there through and along an associated light path (16a..e), towards an analysing region (18).
Abstract:
A multi-spectral sensor system and methods are disclosed. One aspect of the invention comprises a multi-spectral sensor system mountable to a mobile platform. The system may comprise an image capturing system, a first translation stage affixed to the image capturing system and a stationary optics assembly, The system may further comprise a motion controller configured to move the first translation stage and image capturing system across the stationary optics along a traveling direction opposite of a traveling direction of the mobile platform and at substantially the same rate as the mobile platform is moving during a stare operation.
Abstract:
An electron microscope (10) is adapted to enable spectroscopic analysis of a sample (16). A parabolic mirror (18) has a central aperture (20) through which the electron beam can pass. The mirror (18) focuses laser illumination from a transverse optical path (24) onto the sample, and collects Raman and/or other scattered light, passing it back to an optical system (30). The mirror (18) is retractable (within the vacuum of the electron microscope) by a sliding arm assembly (22).
Abstract:
A multi-spectrum, multi-channel imaging spectrometer includes two or more input slits or other input for each input channel. The input slits are vertically and horizontally displaced from each other. The vertical displacements cause spectra from the channels to be vertically displaced on a single image sensor on a stationary image plane. The horizontal displacements cause light beams from the input channels to strike a convex grating at different incidence angles and produce separate spectra having different spectral ranges. A retroflective spectrometer includes a convex grating that, by diffraction, disperses wavelengths of light at different angles and orders approximately back along an incident light beam. A single concave mirror reflects both the input channel and the dispersed spectrum. A prism, set of mirrors, beam splitters or other optical element(s) folds the input channel(s) of a spectrometer to enable the input(s) to be moved away from the plan of the image sensor.
Abstract:
An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may be used to encode radiation using a single modulator.
Abstract:
Method and apparatus for analyzing radiation using analyzers (100) where encoding of selected spectral or spatial components is achieved by spatially varying the reflectance properties of a rotating spatial radiation modulators (22). Input radiation from light source (24) is passed into the analyzer and the encoded beams are directed onto one or more detectors.