Abstract:
Die Erfindung betrifft ein Spektrometer mit einer ersten Lichtquelle (12), die Lichtstrahlung (24) in einem ersten Wellenlängenbereich erzeugt, einer zweiten Lichtquelle (14), die Lichtstrahlung (26) in einem zweiten Wellenlängenbereich erzeugt, einer Spiegeleinheit (16) zur Umlenkung der Lichtstrahlung (24, 26) in eine Messstrecke (18), wobei die Strahlung (24, 26) beider Wellenlängenbereiche die Messstrecke (18) auf dem gleichen optischen Pfad durchläuft, einem Detektor (20) zum Nachweis der die Messstrecke (18) durchlaufenen Strahlung (24, 26) und mit einer Auswerteeinheit (22) zum Auswerten der auf den Detektor (20) auftreffenden Strahlung (24, 26) und Bestimmen einer Konzentration einer in der Messstrecke (18) vorliegenden Messgaskomponente. Um ein verbessertes Spektrometer bereit zu stellen, mit dem auf kostengünstige Weise eine Mehrkanaligkeit erreicht werden kann und ein entsprechendes Verfahren zum Betrieb eines solchen Spektrometers bereit zu stellen, wird vorgeschlagen, dass die Spiegeleinheit (16) als Mikrospiegelarray (32) ausgebildet ist und ein einzelner Mikrospiegel (34) nur einen Teil der Strahlung (24, 26) umlenkt.
Abstract:
A optical device storage package includes a storage portion configured to store an optical device (etalon), a base portion which constitutes a bottom portion of the storage portion, a side wall portion which is integrally molded with the base portion and which constitutes a side surface portion of the storage portion, and a first lid portion joined to the side wall portion so as to cover the storage portion, constituting a top portion opposing the bottom portion of the storage portion and hermetically sealing the top portion, wherein the first lid portion is formed of a light-transmissive member.
Abstract:
A multispectral staring array (10) comprises, amongst other things, at least two sensors (28, 30) where each sensor is adapted to detect an image in a different predetermined spectral sensitivity; a first lens (14) to focus capture spectral bands; a spectral filter (20, 22) between the lens (14) and the sensors (28, 30) to subdivide the incident spectral bands; and a second lens (24, 26) to direct and focus the subdivided incident spectral bands on each of the sensors (28, 30).
Abstract:
An intra-oral imaging apparatus for obtaining an image of a tooth has an image capture apparatus with an imaging sensor that is energizable to obtain image data and one or more optical elements for directing light from the tooth to the imaging sensor. An illumination apparatus has one or more light sources energizable to emit light and a spatial light modulator that is configurable to shape an illumination beam from the emitted light. One or more optical elements relay the shaped illumination beam toward the tooth surface. A control logic processor in signal communication with the imaging sensor obtains image data and in signal communication with the spatial light modulator shapes the illumination beam according to the obtained image data.
Abstract:
A structure having an optical slit therein. The structure includes a substrate having an opening therethrough and a metal layer disposed on the substrate, such metal layer having a photolithographically formed slit therein, such slit being narrower than the opening and being disposed over the opening, portions of the metal layer disposed adjacent the slit being suspended over the opening and other portions of the metal layer being supported by the substrate.
Abstract:
A digital imaging device comprising a light source, a pixel array detector having a rolling shutter functionality, a spatial light modulator configured to produce one or more modulation patterns during a frame exposure of the pixel array detector, and at least one timing signal configured to control a spatial-temporal relationship between a rolling shutter of the pixel array detector and the one or more modulation patterns provided by the spatial light modulator.
Abstract:
A particle detection and classification system is disclosed. The system determines the size of measured particles by measuring light scattered by the particles. The system simultaneously determines whether measured particles are biological or non-biological by measuring fluorescent light from the particles. The system uses a parabolic reflector, and optionally, a spherical reflector to collect fluorescence light.
Abstract:
A method and system(10) are presented for producing exciting radiation (P’) to be used in producing an output coherent anti-stokes Raman scattering (CARS) signal of a medium (12). An input spectral phase coherent optical pulse (P), carrying a pump, a Stokes and a probe photon, is optically processed by adjusting spectral phase and polarization of wavelength components of the input pulse to produce a unitary optical exciting pulse (P’) that carries the pump photon, the Stokes photon and multiple probe photons and is capable of inducing interference between contributions from at least some of vibrational levels in the CARS signal.