Abstract:
A verification device (110) for verifying the identity of an article (114) is disclosed. The verification device (110) comprises: at least one illumination source (116) for illuminating at least one safety mark (124) of the article (114) with at least one light beam (122); at least one detector (118) adapted for detecting after an interaction of the light beam (122) with the safety mark (124), the detector (118) having at least one optical sensor (128), wherein the optical sensor (128) has at least one sensor region (130), wherein the optical sensor (128) is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor region (130) by the light beam (122), wherein the sensor signal, given the same total power of the illumination, is dependent on a beam cross-section of the light beam (122) in the sensor region (130); and at least one evaluation device (120) adapted for evaluating the sensor signal and for verifying the identity of the article (114) on the basis of the sensor signal. Further, a verification system (112), a method for verifying the identity of an article (114) and a use of an optical sensor (128) for verifying the identity of an article (114) are disclosed.
Abstract:
An optical detector(110) is disclosed, comprising: at least one optical sensor(122) adapted to detect a light beam(120) and to generate at least one sensor signal, wherein the optical sensor(122) has at least one sensor region(124), wherein the sensor signal of the optical sensor(122) exhibits a non-linear dependency on an illumination of the sensor region(124) by the light beam (120) with respect to a total power of the illumination; at least one image sensor(128) being a pixelated sensor comprising a pixel matrix(174) of image pixels(176), wherein the image pixels(176) are adapted to detect the light beam(120) and to generate at least one image signal, wherein the image signal exhibits a linear dependency on the illumination of the image pixels(176) by the light beam(1,6) with respect to the total power of the illumination; and at least one evaluation device(132), the evaluation device(132) being adapted to evaluate the sensor signal and the image signal. In a particularly preferred embodiment, the non-linear dependency of the sensor signal on the total power of the illumination of the optical sensor(122) is expressible by a non-linear function comprising a linear part and a non-linear part, wherein the evaluation device(132) is adapted to determine the linear part and/or the non-linear part of the non-linear function by evaluating both the sensor signal and the image signal. Herein, the evaluation device(132), preferably, comprises a processing circuit(136) being adapted to provide a difference between the sensor signal and the image signal for determining the non-linear part of the non-linear function.
Abstract:
A detector (110) and a method for optically determining a position of at least one object (112). The detector (110) comprises at least one optical sensor (114) for determining a position of at least one light beam (134) and at least one evaluation device (164) for generating at least one item of information on a transversal position of the object (112) and at least one item of information on a longitudinal position of the object (112). The sensor (114) has at least a first electrode (126) and a second electrode (128). At least one photovoltaic material (130) is embedded in between the first electrode (126) and the second electrode (128). The first electrode (126) or the second electrode (128) is a split electrode (136) having at least three partial electrodes (140, 142, 144, 146). The detector and the method can determine three-dimensional coordinates of an object in a fast and efficient way.
Abstract:
A data readout device (114) for reading out data from at least one data carrier (112) having data modules (116) located at least two different depths within the at least one data carrier (112) is disclosed. The data readout device (114) comprises: —at least one illumination source (122) for directing at least one light beam (124) onto the data carrier (112); -at least one detector (130) adapted for detecting at least one modified light beam modified by at least one of the data modules (116), the detector (130) having at least one optical sensor (132), wherein the optical sensor (132)has at least one sensor region (134), wherein the optical sensor (132)is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor region (134)by the modified light beam, wherein the sensor signal, given the same total power of the illumination,is dependent on a beam cross-section of the modified light beam in the sensor region (134); and -at least one evaluation device (136) adapted for evaluating the at least one sensor signal and for deriving data stored in the at least one data carrier (112) from the sensor signal. Further, a data storage system (110), a method for reading out data from at least one data carrier (112) and a use of an optical sensor (132) for reading out data are disclosed.
Abstract:
A detector (110) for determining a position of at least one object (112) with regard to at least one optical sensor (120) is proposed, wherein the optical sensor (120) has an image plane (122). The detector (110) comprises: at least one illumination source (134), wherein the illumination source (134) emits at least one light beam (136), wherein the light beam (136) comprises a component which is parallel to the image plane (122) of the optical sensor (120); the optical sensor (120), wherein the optical sensor (120) has a sensor region (126) in the image plane (122), wherein the optical sensor (120) is adapted to determine a transversal component of the position of the object (112) in an event where the object (112) approaches the optical sensor (120) in a manner that light is scattered from the component of the light beam (136) conducted parallel to the image plane (122) of the optical sensor (120), the transversal component of the position being a position in the image plane (122) of the optical sensor (120), the optical sensor (120) being adapted to generate at least one transversal sensor signal from the light scattered from the component of the light beam (136) conducted parallel to the image plane (122) of the optical sensor (120) in the sensor region (126), wherein the optical sensor (120) is further designed to generate at least one longitudinal sensor signal in a manner dependent on an illumination of the sensor region (126) by light which is scattered from the component of the light beam (136) conducted parallel to the image plane (122) of the optical sensor (120), wherein the longitudinal sensor signal is dependent on a variation of an intensity of the light is scattered from the component of the light beam (136) conducted parallel to the image plane (122) of the optical sensor (120) in the sensor region (126); and an evaluation device (132), wherein the evaluation device (132) is designed to generate at least one item of information on a transversal component of a position of the object (112) by evaluating the transversal sensor signal and wherein the evaluation device (132) is further designed to generate at least one item of information on a longitudinal component of a position of the object (112) by evaluating the longitudinal sensor signal.
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:
An optical detector (110) is disclosed. The optical detector (110) comprises: —an optical sensor (112), having a substrate (116) and at least one photosensitive layer setup (118) disposed thereon, the photosensitive layer setup (118) having at least one first electrode (120), at least one second electrode (130) and at least one photovoltaic material (140) sandwiched in between the first electrode (120) and the second electrode (130), wherein the photovoltaic material (140) comprises at least one organic material, wherein the first electrode (120) comprises a plurality of first electrode stripes (124) and wherein the second electrode (130) comprises a plurality of second electrode stripes (134), wherein the first electrode stripes (124) and the second electrode stripes (134) intersect such that a matrix (142) of pixels (144) is formed at intersections of the first electrode stripes (124) and the second electrode stripes (134); and —at least one readout device (114), the readout device (114) comprising a plurality of electrical measurement devices (154) being connected to the second electrode stripes (134) and a switching device (160) for subsequently connecting the first electrode stripes (124) to the electrical measurement devices (154).
Abstract:
An optical detector (110) is disclosed, comprising: at least one optical sensor (122) adapted to detect a light beam (116) and to generate at least one sensor signal, wherein the optical sensor (122) has at least one sensor region (126), wherein the sensor signal of the optical sensor (122) is dependent on an illumination of the sensor region (126) by the light beam (116), wherein the sensor signal, given the same total power of the illumination, is dependent on a width of the light beam (116) in the sensor region (126); at least one focus-tunable lens (130) located in at least one beam path (132) of the light beam (116), the focus-tunable lens (130) being adapted to modify a focal position of the light beam (116) in a controlled fashion; at least one focus-modulation device (136) adapted to provide at least one focus-modulating signal (138) to the focus-tunable lens (130), thereby modulating the focal position; and at least one evaluation device (140), the evaluation device (140) being adapted to evaluate the sensor signal.
Abstract:
An optical detector (110) is disclosed. The optical detector (110) comprises: an optical sensor (112), having a substrate (116) and at least one photosensitive layer setup (118) disposed thereon, the photosensitive layer setup (118) having at least one first electrode (120), at least one second electrode (130) and at least one photovoltaic material (140) sandwiched in between the first electrode (120) and the second electrode (130), wherein the photovoltaic material (140) comprises at least one organic material, wherein the first electrode (120) comprises a plurality of first electrode stripes (124) and wherein the second electrode (130) comprises a plurality of second electrode stripes (134), wherein the first electrode stripes (124) and the second electrode stripes (134) intersect such that a matrix (142) of pixels (144) is formed at intersections of the first electrode stripes (124) and the second electrode stripes (134); and at least one readout device (114), the readout device (114) comprising a plurality of electrical measurement devices (154) being connected to the second electrode stripes (134) and a switching device (160) for subsequently connecting the first electrode stripes (124) to the electrical measurement devices (154).
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 generate at least one item of information on a longitudinal position of the object (112) by evaluating the longitudinal sensor signal.