Abstract: The invention relates an analysis system having a positioning device for positioning a test element and a method for positioning the test element in the analysis system. The positioning device has a support surface for supporting the test element. A first switch component sits on the support element. A second switch component is positioned parallel to the first switch component. A connection is established when the second switch component is positioned in recess on the test element due to the displacement of the second switch component relative to the first switch component.

Abstract: The invention relates to embodiments of a method and a system for monitoring the correct positioning of a test element in a test element receptacle of an analysis unit, the test element carrying a sample to be analyzed by the analysis unit. Using a delimiting element, responsive signals resulting from irradiating an analysis region on the test element are effectively prevented from impinging upon a signal detector when the analysis region is in an incorrect position relative to the analysis unit. The delimiting element is provided with a light-opaque region and a light-transmissive region, and the light-opaque region is positioned such that responsive signals impinge upon it rather than the light-transmissive region when the analysis region is in an incorrect position.

Abstract: The invention relates to embodiments of a method and a system for monitoring the correct positioning of a test element in a test element receptacle of an analysis unit, the test element carrying a sample to be analyzed by the analysis unit. Using a delimiting element, responsive signals resulting from irradiating an analysis region on the test element are effectively prevented from impinging upon a signal detector when the analysis region is in an incorrect position relative to the analysis unit. The delimiting element is provided with a light-opaque region and a light-transmissive region, and the light-opaque region is positioned such that responsive signals impinge upon it rather than the light-transmissive region when the analysis region is in an incorrect position.

Abstract: A system and method for the optical determination of the concentration of an analyte in a body fluid. The system comprises an analytical test element which has a support layer and a detection area arranged thereon which contains the reagents required for the detection of the analyte in a body fluid as well as an instrument which has an illumination unit with at least one light source, a detection unit and an evaluation unit. The detection unit is optically scanned with the illumination unit and the detection unit.

Abstract: The invention relates an analysis system having a positioning device for positioning a test element and a method for positioning the test element in the analysis system. The positioning device has a support surface for supporting the test element. A first switch component sits on the support element. A second switch component is positioned parallel to the first switch component. A connection is established when the second switch component is positioned in recess on the test element due to the displacement of the second switch component relative to the first switch component.

Abstract: The invention concerns an opto-electronic sensor, in particular for the measurement of opaqueness in a medium, having a transmitter channel (6) irradiating light waves along a first axis (20) and with at least one receiver channel (8, 10) which detects light waves interacting with the medium and which cooperates within an evaluation unit. In order to optically isolate the transmitter and receiver channels from each other, the sensor is configured in such a fashion that a common window (12) made from an optically transparent material is provided for sealing the transmitter channel (6) and the receiver channel (8, 10) with respect to the medium to be measured and for coupling in and coupling out the light waves.

Abstract: A micropolarimeter comprises an analyzer (1) and a detector (3), which is typically a photodetector array. The detector has a circular configuration of a number N of sectors. Analyzer (1) and detector (3) form a unit with the analyzer assigning different polarization values to the sectors. Analyzer and the detector contain no moving parts. Three different embodiments are proposed for the analyzer: a glass cone, covered with a polarizing thin film stack, a metal grid polarizing array, and an array of polarizing waveguides. The micropolarimeter (14) is used preferably in a microellipsometer system which can serve as a tool for film diagnostics, especially optical characterization of thin films.