专利内容由知识产权出版社提供
专利名称：DETECTOR FOR AN OPTICAL DETECTION OF
AT LEAST ONE OBJECT
发明人：LUNGENSCHMIED, Christoph,BONSIGNORE,
Christian,HANDRECK, Anke,BRUDER,Ingmar,SEND, Robert
申请号：EP18702724.8申请日：20180207公开号：EP3580584A1公开日：20191218
摘要：A detector (110) for an optical detection of at least one object (112) is
proposed. The detector (110) comprises: - at least one optical sensor, wherein the opticalsensor has at least one sensor region (130), wherein the optical sensor is designed togenerate at least one sensor signal in a manner dependent on an illumination of thesensor region (130) by an incident modulated light beam (132), wherein the sensor signalis dependent on a modulation frequency of the light beam (132), wherein the sensorregion (130) comprises at least one capacitive device (134), the capacitive device (134)comprising at least two electrodes (166, 174), wherein at least one insulating layer (178)and at least one photosensitive layer (180) are embedded between the electrodes (166,174), wherein at least one of the electrodes (166, 74) is at least partially opticallytransparent for the light beam (132); and - at least one evaluation device (150), whereinthe evaluation device (150) is designed to generate at least one item of information on aposition of the object (112) by evaluating the sensor signal. In particular, the opticalsensor may be a longitudinal optical sensor (114) designed to generate at least one
longitudinal sensor signal, wherein the longitudinal sensor signal, given the same totalpower of the illumination, is further dependent on a beam cross-section of the lightbeam (132) in the sensor region (130), wherein the evaluation device (150) is designed togenerate at least one item of information on a longitudinal position of the object (112) byevaluating the longitudinal sensor signal. Alternatively or in addition, the optical sensormay be a transversal optical sensor (160), wherein one of the electrodes (166, 174) is anelectrode layer (222) having a low electrical conductivity adapted to determine a positionat which the incident light beam (132) impinged the sensor region (130), wherein thetransversal optical sensor (160) is designed to generate at least one transversal sensorsignal dependent on the position at which the incident light beam (132) impinged thesensor region (130), wherein the evaluation device (150) is designed to generate at leastone item of information on a transversal position of the object (112) by evaluating thetransversal sensor signal. Thereby, a simple and, still, efficient detector for an accuratedetermining of a position of at least one object in space is provided which exhibits astrong non-linear behavior of an extracted ac photocurrent with a variation of a size of animpinging light spot and which, on the other hand, allows a facile preparation.
申请人：trinamiX GmbH
地址：Industriestrasse 35 67063 Ludwigshafen am Rhein DE
国籍：DE
代理机构：Altmann Stößel Dick Patentanwälte PartG mbB
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