Abstract:
The present invention relates to a spectrometer (1; 1') for measuring the concentration of at least one analyte in a fluid sample (2; 2'), comprising a light source (3; 3') for producing a light beam (4; 4'), a photosensor (5; 5') for receiving the light beam (4; 4'), and a measuring section (6; 6') in the beam path of the light beam (4' 4'), in which measuring section the fluid sample (2; 2') can be introduced, wherein the measuring section (6; 6') can be changed.
Abstract:
Ein Spektrometer umfasst einen ersten teiltransparenten Spiegel (1a), einen zweiten teiltransparenten Spiegel (1b), einen verformbaren Abstandshalter (7a, 7b), der zwischen dem ersten teiltransparenten Spiegel (1a) und dem zweiten teiltransparenten Spiegel (1b) angeordnet ist, und eine Mehrzahl von Detektorelementen. Der verformbare Abstandshalter (7a, 7b) ist ausgebildet, um einen Abstand zwischen dem ersten teiltransparenten Spiegel (1a) und dem zweiten teiltransparenten Spiegel (1b) in Abhängigkeit einer angelegten Spannung derart zu verändern, dass der erste teiltransparente Spiegel (1a) und der zweite teiltransparente Spiegel (1b) zueinander verkippt angeordnet sind. Die Mehrzahl von Detektorelementen sind entlang der Verkippungsrichtung des ersten und zweiten teiltransparenten Spiegels (1a, 1b) angeordnet, um unterschiedliche Wellenlängen einer einfallenden Strahlung zu detektieren.
Abstract:
An optical measurement Method and System for spectroscopy are disclosed for evaluating the parameters of a sample. The device generally includes a broadband source for generating a light beam. Reflected light beam are simultaneously analyzed as a function of the position within the beam to provide information at multiple wavelengths and/or angular distribution. A Furier filter, comprising dispersion element and a two-dimensional photodetector array are used so that the beam may be simultaneously or consicuently analyzed at multiple angles of returned from the sample (diffracted) light at multiple wavelengths.
Abstract:
An optical system comprising two lens cells, each lens cell comprising multiple lens elements, to provide imaging over a very wide image distance and within a wide range of magnification by changing the distance between the two lens cells. An embodiment also provides scannable laser spectroscopic measurements within the field-of-view of the instrument.
Abstract:
An optical spectroscopy tool is provided. In one embodiment a highly efficient means by which moderate resolution spectroscopy may be performed in the vacuum ultraviolet (VUV) is described. In one embodiment the techniques can be used as a high throughput spectrometer to spatially disperse wavelengths in and around the VUV in such a manner as to generate a substantially flat field focal plane, suitable for use in combination with an array detector. Some embodiments utilize prism based spectrometers. Some embodiments utilize detector elements that may be movable and/or located within the spectrometer. In some embodiments, collimated light may be provided as an input to the spectrometer.
Abstract:
The present subject matter relates to methods of high-speed analysis of product samples. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward a plurality of optical detectors. Signals from the detectors are compared with a reference signal based on a portion of the illuminating light passing through a reference element to determine characteristics of the product under analysis. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.
Abstract:
An optical spectroscopy tool is provided. In one embodiment a highly efficient means by which moderate resolution spectroscopy may be performed in the vacuum ultraviolet (VUV) is described. In one embodiment the techniques can be used as a high throughput spectrometer to spatially disperse wavelengths in and around the VUV in such a manner as to generate a substantially flat field focal plane, suitable for use in combination with an array detector. Some embodiments utilize prism based spectrometers. Some embodiments utilize detector elements that may be movable and/or located within the spectrometer. In some embodiments, collimated light may be provided as an input to the spectrometer.
Abstract:
Real time high speed high resolution hyper-spectral imaging. (a) electromagnetic radiation collimating element (16), collimating electromagnetic radiation (44) emitted by objects (12) in a scene or a sample (14); (b) optical interferometer (18), receiving and dividing collimated object emission beam, generating interference images, and piezoelectrically determining and changing magnitude of optical path difference of divided collimated object emission beam; optical interferometer (18) includes: beam splitter (20'), fixed mirror (22), movable mirror (24), piezoelectric motor (26), displacing movable mirror (24) along axis (60), distance change feedback sensor (28), sensing and measuring change in distance of movable mirror (24) along axis (60), piezoelectric motor controller (30), actuating and controlling piezoelectric motor (26); and thermo-mechanically stable optical interferometer mount (32A); (c) camera optics (34), focusing interference images of each optical path difference; (d) detector (36), recording interference images; (e) central programming and signal processing unit (38), and (f) display (40).
Abstract:
An individualized modeling equation for predicting a patient's blood glucose values is generated as a function of non-invasive spectral scans of a body part and an analysis of blood samples from the patient, and is stored on a central computer. The central computer predicts a blood glucose value for the patient as a function of the individualized modeling equation and a non-invasive spectral scan generated by a remote spectral device. If the spectral scan falls within the range of the modeling equation, the predicted blood glucose level is output to the patient. If the spectral scan falls outside the range of the modeling equation, regeneration of the model is required, and the patient takes a number of noninvasive scans and an invasive blood glucose level determination. The computer regenerates the individualized modeling equation as a function of the set of spectral scans and corresponding blood glucose values.