Abstract: An optical detector (110) is disclosed, the optical detector (110) comprising: at least one spatial light modulator (114) being adapted to modify at least one property of a light beam (136) in a spatially resolved fashion, having a matrix (132) of pixels (134), each pixel (134) being controllable to individually modify the at least one optical property of a portion of the light beam (136) passing the pixel (134); at least one optical sensor (116) adapted to detect the light beam (136) after passing the matrix (132) of pixels (134) of the spatial light modulator (114) and to generate at least one sensor signal; at least one modulator device (118) adapted for periodically controlling at least two of the pixels (134) with different modulation frequencies; and at least one evaluation device (120) adapted for performing a frequency analysis in order to determine signal components of the sensor signal for the modulation frequencies.

Abstract: A detector (118) for determining a position of at least one object (112) is disclosed, the detector (118) comprising: at least one longitudinal optical sensor (120), wherein the longitudinal optical sensor (120) has at least one sensor region (124), wherein the longitudinal optical sensor (120) is at least partially transparent, wherein the longitudinal optical sensor (120) is designed to generate at least one longitudinal sensor signal in a manner dependent on an illumination of the sensor region (124) by at least one light beam (126) traveling from the object (112) to the detector (118), wherein the longitudinal sensor signal, given the same total power of the illumination, is dependent on a beam cross-section of the light beam (126) in the sensor region (124); at least one illumination source (114) adapted to illuminate the object (112) with illumination light (115) through the longitudinal optical sensor (120); and at least one evaluation device (136), wherein the evaluation device (136) is designed to

Abstract: A detector (110) for determining a position of at least one object (112) is proposed.

Abstract: A detector (110) for determining a position of at least one object (112) is proposed.

Abstract: A detector for determining a position of at least one object. The detector includes: at least one optical sensor configured to detect a light beam traveling from the object towards the detector, the optical sensor including at least one matrix of pixels; and at least one evaluation device configured to determine an intensity distribution of pixels of the optical sensor that are illuminated by the light beam, the evaluation device further configured to determine at least one longitudinal coordinate of the object by using the intensity distribution.

Abstract: A detector device (111) for determining an orientation of at least one object (112) is disclosed.

Abstract: A detector (110) for determining a position of at least one object (118) is disclosed. The detector (110) comprises: at least one optical sensor (112), the optical sensor (112) being adapted to detect a light beam (150) traveling from the object (118) towards the detector (110), the optical sensor (112) having at least one matrix (152) of pixels (154); and at least one evaluation device (126), the evaluation device (126) being adapted to determine a number N of pixels (154) of the optical sensor (112) which are illuminated by the light beam (150), the evaluation device (126) further being adapted to determine at least one longitudinal coordinate of the object (118) by using the number N of pixels (154) which are illuminated by the light beam (150).

Abstract: An optical detector (110) is disclosed.

Abstract: An optical detector (110) is disclosed, the optical detector (110) comprising: at least one spatial light modulator (114) being adapted to modify at least one property of a light beam (136) in a spatially resolved fashion, having a matrix (132) of pixels (134), each pixel (134) being controllable to individually modify the at least one optical property of a portion of the light beam (136) passing the pixel (134); at least one optical sensor (116) adapted to detect the light beam (136) after passing the matrix (132) of pixels (134) of the spatial light modulator (114) and to generate at least one sensor signal; at least one modulator device (118) adapted for periodically controlling at least two of the pixels (134) with different modulation frequencies; and at least one evaluation device (120) adapted for performing a frequency analysis in order to determine signal components of the sensor signal for the modulation frequencies.

Abstract: A detector (110) for optically detecting at least one object (112) is proposed. The detector (110) comprises at least one optical sensor (114). The optical sensor (114) has at least one sensor region (116). The optical sensor (114) is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor region (116). The sensor signal, given the same total power of the illumination, is dependent on a geometry of the illumination, in particular on a beam cross section of the illumination on the sensor area (118). The detector (110) furthermore has at least one evaluation device (122). The evaluation device (122) is designed to generate at least one item of geometrical information from the sensor signal, in particular at least one item of geometrical information about the illumination and/or the object (112).

Abstract: A detector (110) for optically detecting at least one object (112) is proposed. The detector (110) comprises at least one optical sensor (114). The optical sensor (114) has at least one sensor region (116). The optical sensor (114) is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor region (116). The sensor signal, given the same total power of the illumination, is dependent on a geometry of the illumination, in particular on a beam cross section of the illumination on the sensor area (118). The detector (110) furthermore has at least one evaluation device (122). The evaluation device (122) is designed to generate at least one item of geometrical information from the sensor signal, in particular at least one item of geometrical information about the illumination and/or the object (112).

Abstract: A detector (110) for determining a position of at least one object (112) is proposed.

Abstract: A process for marking articles, wherein the article to be marked is contacted with at least one marker and the absorption spectrum of the at least one marker in contact with the article has at least one narrow band with a half-height width of <1500 cm?1 which is in the UV and/or visible and/or IR wavelength region of the electromagnetic spectrum. The markers are selected from organic dyes, inorganic chromophores and pigments. The article to be marked comprises paper, metal, glass, ceramic or plastic.

Abstract: A detector (110) for optically detecting at least one object (112) is proposed. The detector (110) comprises at least one optical sensor (114). The optical sensor (114) has at least one sensor region (116). The optical sensor (114) is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor region (116). The sensor signal, given the same total power of the illumination, is dependent on a geometry of the illumination, in particular on a beam cross section of the illumination on the sensor area (118). The detector (110) furthermore has at least one evaluation device (122). The evaluation device (122) is designed to generate at least one item of geometrical information from the sensor signal, in particular at least one item of geometrical information about the illumination and/or the object (112).

Abstract: A process for marking articles, wherein the article to be marked is contacted with at least one marker and the absorption spectrum of the at least one marker in contact with the article has at least one narrow band with a half-height width of <1500 cm?1 which is in the UV and/or visible and/or IR wavelength region of the electromagnetic spectrum. The markers are selected from organic dyes, inorganic chromophores and pigments. The article to be marked comprises paper, metal, glass, ceramic or plastic.

Abstract: A method for detecting differences between physically measurable properties of a sample and a reference sample. A two-dimensional reference field is generated and first and second two-dimensional patterns are produced respectively from the reference sample and the sample. A correction is made to sample response functions to eliminate time-dependent and location-dependent fluctuations of the detector.

Abstract: A device (110) for determining at least one optical property of a sample (112) is proposed. The device (110) comprises a tuneable excitation light source (114; 410) for applying excitation light (122) to the sample (112). The device (110) furthermore comprises a detector (128, 130; 312) for detecting detection light (132, 136; 314) emerging from the sample (112). The excitation light source (114; 410) comprises a light-emitting diode array (114), which is configured at least partly as a monolithic light-emitting diode array (114). The monolithic light-emitting diode array (114) comprises at least three light-emitting diodes (426) each having a different emission spectrum.

Abstract: A method is proposed for detecting at least one chemical compound V contained in a medium (312). The method comprises a verification step (420) which is used to determine whether V is contained in the medium (312). The method furthermore comprises an analysis step (424) in which a concentration c of the at least one chemical compound V is determined.

Abstract: A method for detecting differences between physically measurable properties of a sample and a reference sample. A two-dimensional reference field is generated and first and second two-dimensional patterns are produced respectively from the reference sample and the sample. A correction is made to sample response functions to eliminate time-dependent and location-dependent fluctuations of the detector.

Abstract: The present invention relates to a method for determining the identity or non-identity of at least one chemical compound V? homogeneous y distributed in a medium, by a) exposing the medium containing at least one homogeneously distributed chemical compound V? to analysis radiation with a variable wavelength ?, and b) determining the spectral measurement function I?(?) with the aid of the absorbed, reflected, emitted and/or scattered radiation, wherein a correlation function K(??,c?,c) is determined according to Equation I K ? ( ? ? ? ? ? , c ? , c ) = 1 / N · ? - ? + ? ? I ? ? ( ? , c ? ) · I ? ( ? + ? ? ? ? ? , c ) ? ? ? ? ? ( I ) in which K(??,c?,c) denotes the correlation depending on the relative shift ?? of the functions I?(?,c?) and I(?,c) and the concentrations c? and c of the at least one chemical compound V? and V, c? denotes the concentration of the at least one chemical compound V? homogeneously distributed in the medium, with a