摘要:
A device for the recognition of caries, plaque or bacterial infection on teeth, which includes a light source for generating an excitation radiation which is to be directed onto a tooth to be investigated and producing an fluorescence radiation at the tooth. Also included is a detection device for detecting the fluorescence radiation of the tooth, and a spectral filter arranged in front of the detection device, wherein the wavelength of the excitation radiation emitted from the light source lies within the range of between 640 and 670 nm.
摘要:
Method for determining deviations between coordinate systems of different technical systems, comprising the steps of determining a coordinate position of a reference feature of a test object in the coordinate system (u,v) of a first of the technical systems, the attachment of at least one test feature to the test object, with the test feature being attached in the coordinate system of a second of the technical systems at a coordinate position that is determined in dependence on the determined coordinate position of the reference feature, the determination of a coordinate position of at least one test feature and/or at least one feature derived from it in the coordinate system (u,v) of the first technical system, and determination of deviations between the coordinate systems of the first and second technical system, at least on the basis of: (a) the determined coordinate position of at least one test feature and/or of at least one feature derived from it in the coordinate system (u,v) of the first technical system and (b) the coordinate position of the reference feature in the coordinate system (u,v) of the first technical system.
摘要:
Method for determining deviations between coordinate systems of different technical systems, comprising the steps of determining a coordinate position of a reference feature of a test object in the coordinate system (u,v) of a first of the technical systems, the attachment of at least one test feature to the test object, with the test feature being attached in the coordinate system of a second of the technical systems at a coordinate position that is determined in dependence on the determined coordinate position of the reference feature, the determination of a coordinate position of at least one test feature and/or at least one feature derived from it in the coordinate system (u,v) of the first technical system, and determination of deviations between the coordinate systems of the first and second technical system, at least on the basis of: (a) the determined coordinate position of at least one test feature and/or of at least one feature derived from it in the coordinate system (u,v) of the first technical system and (b) the coordinate position of the reference feature in the coordinate system (u,v) of the first technical system.