Abstract:
Kamera mit einer matrixförmigen Anordnung von Detektorflächen (5.1) eines Detektorarrays (5) zur Erzeugung eines pixelbasierten Bildes und einem Spektrometer (4) mit einer Sensorfläche (4.1), die wenigstens der Position einer Detektorfläche (5.1) des Detektorarrays (5) und damit einem Pixel des Bildes und maximal der Position einer zusammenhängenden Gruppe von Detektorflächen (5.1), die kleiner als das Detektorarray (5) ist, und damit einer zusammenhängenden Gruppe von Pixeln des Bildes zugeordnet werden kann, womit ein mit dem Spektrometer (4) erzeugbares Spektrum einem Bildausschnitt des Bildes zugeordnet werden kann.
Abstract:
A method of stabilizing output signals from a cascade optical detector in an optical spectroscopy apparatus, particularly a reflectance anisotropy spectroscopy apparatus, and generating a stable output photocurrent signal from the optical detector by controlling the supply voltage to the detector in constant photocurrent mode, wherein control is performed at a relatively low voltage, i.e. lower than 10 V.
Abstract:
Die Erfindung stellt eine Messvorrichtung bereit zum Analysieren einer lumineszierenden Probe und insbesondere Messen der Konzentration wenigstens eines Analyts in einer lumineszierenden Probe, aufweisend: ein Gehäuse mit einem Probenaufnahmeraum zum Aufnehmen eines Probenbehälters; einen Probenbehälter zum Aufnehmen der lumineszierenden Probe; eine Strahlungsempfängereinrichtung zum Empfangen von der lumineszierenden Probe abgegebenen Strahlung, und eine Auswerteeinrichtung zum Auswerten der von der Strahlungsempfängereinrichtung empfangenen Strahlung der lumineszierenden Probe. Außerdem stellt die Erfindung eine Messvorrichtung bereit, aufweisend ein Basisteil und einen an dem Basisteil austauschbar angeordneten Messkopf, wobei der Messkopf zum Analysieren einer lumineszierenden Probe oder als Spektrometer-Messkopf ausgebildet ist.
Abstract:
An imaging apparatus and method are provided for improving discrimination between parts of a scene enabling enhancement of an object in the scene. A camera unit (12) is arranged to capture first and second images from the scene (8) in first and second distinct and spectrally spaced apart wavebands. An image processing unit (14) processes the images so captured and processes polarimetric information in the images to enable better discrimination between parts of the scene. An image of the scene, including a graphical display of the polarimetric information, may be displayed on a visual display unit (16) thus enhancing an object in the scene for viewing by a user. Correlation parameters indicating, possibly on a pixel-by-pixel basis, the correlation between the actual image intensity (30) at each angle of polarisation and a modelled expected image intensity may be used to enhance the visibility of an object.
Abstract:
Systems, methods, and apparatus for performing surface type detection in connection with locate and marking operations. In some embodiments, one or more sensors (e.g., radiation sensors, acoustic sensors, color sensors, light sensors, etc.) may be employed to collect information regarding a surface, such as a ground surface on which marking material is to be dispensed to mark the presence or absence of an underground facility. The collected sensor data may be analyzed to provide an estimate of a type of the surface that is being sensed. For example, a still-image or video camera may be used as a sensor that detects visible light reflecting from a surface. One or more images of the surface captured by the camera may be analyzed using some suitable image analysis software to identify one or more characteristics (e.g., color, intensity, randomness, presence/absence of lines, etc.) that may be indicative of a surface type. As another example, one or more radiation sensors may be employed to measure an amount of electromagnetic radiation reflected by the sensed surface one or more selected wavelengths or ranges of wavelengths to identify a spectral signature that may also be indicative of a surface type.
Abstract:
The invention features devices and methods for collecting and measuring light from external light sources. In general, the devices of the invention feature a light diffusing element, e.g., as a component of a light collector, connected by a light conducting conduit, e.g., a fiber optic cable, to a light measuring device, e.g., a spectrometer. This light diffusing element allows, e.g., for substantially uniform light diffusion across its surface and thus accurate measurements, while permitting the total footprint of the device to remain relatively small and portable. This light diffusing element also allows flexibility in scaling of the device to permit use in a wide range of applications.
Abstract:
The invention relates to a miniaturized optoelectronic system for producing static or moving images of scenes or individual objects (11) and for determining and evaluating the spectral properties of the objects (11) within a scene or of individually imaged objects (11). According to the invention, a system of this type comprises optical components and beam paths for producing static of moving images of a scene or of an individual object (11), optical components and beam paths for determining the spectral properties of one or more objects (11) contained in the scene or of the individual object (11), at least one image sensor as an optoelectronic converter, electronic components for processing the output signals of the image sensor, an information output unit designed to present the results in a sensory manner, preferably for presenting the spectral properties in association with the objects (11) in a visually perceptible manner, and means for supplying power to electronic components, wherein a design of the system in the form of a hand-held device, also referred to as a handheld, is provided for.
Abstract:
The invention relates to a method of selecting the most probable variant of a matching paint candidate colour standard for vehicle repair using a mobile device having a colour display and an input unit and which is capable of data exchange with a central computer via an at least partly wireless communication line, wherein information indicating the location of the mobile device is sent to the central computer via the at least partly wireless communication line. The indication of the location of the mobile device is taken into account in the selection of candidate colour standards and/or the selection of variants.