Abstract: A receptacle for a plurality of light-guiding fibres is provided. The receptacle has a glass part with a first end face, a second end face, a plurality of rectilinear channels extending between the first and second end faces, and a lateral surface between the first and second end faces along a longitudinal direction. The glass part has a length defined between the first and second end faces where the length is greater than a largest transverse dimension of the glass part. The rectilinear channels are open at the first end face and/or the second end face so that the light-guiding fibres are receivable therein, respectively. The rectilinear channels have a channel length that is greater than a channel transverse dimension. The lateral surface has a parting surface thereon.

Abstract: A panel-shaped glass element is provided that includes vitreous material having a thermal expansion coefficient of less than 10×10-6 K-1 as well as two opposing surfaces. The glass element furthermore has at least one recess which runs through the glass of the glass element and has a recess wall which runs around the recess and adjoins the two opposing surfaces. The recess wall has a structure with a multiplicity of mutually adjacent rounded dome-shaped depressions. A roughness of the recess wall is formed by these depressions as well as the ridges enclosing the depressions. The recess wall has a mean roughness value (Ra) which is less than 5 µm.

Abstract: A method of structuring a glass element having a first side face and a second side face is provided. The method includes the steps of: producing a filament-shaped flaw in the glass element with a pulsed laser beam along a focus line; etching to remove glass in the filament-shaped flaw to form a wall extending from the first side face towards the second side face, the wall having a boundary line that is tapered at a vertex between the wall and the first side face with a taper angle with respect to a perpendicular of the first side face; and adjusting the taper angle by controlling a feature of the focus line. The feature is selected from a group consisting of a position of the focus line, a length of the focus line, an intensity distribution of the focus line, and any combinations thereof.

Abstract: A coated window pane for rail vehicles, wherein the coating is made in a structured and electrically conductive form and includes filtering characteristics for radio signals, where the coating is structured as a conductive periodic grating, in which at least two annular coatings are respectively embedded in the intermediate spaces, the at least two annular coatings are respectively filled by a coated area, and the grating, the annular coatings and the coated areas are separated by insulating regions such that the coated, structured window panes have filtering characteristics such that signals or frequency ranges of signals from and to radio communication systems are arranged outside the vehicle pass through and signals or frequency ranges of signals from and to radio communication devices arranged inside the vehicle are blocked or are greatly attenuated, and such that high requirements with respect to heat shielding and sun shielding properties are also met.

Abstract: A light guide is provided that includes a fiber bundle, a jacket, a proximal end, a distal end, and a terminated end face. The fiber bundle has a plurality of optical fibers. The jacket encloses at least a part of the plurality of optical fibers and/or the fiber bundle. The jacket has a maximum outer lateral dimension that is greater than a maximum outer lateral dimension of the fiber bundle by at most 500 ?m. The terminated end face is on the proximal end and/or the distal end. The terminated end face has a maximum lateral outer dimension that is not larger than the maximum outer lateral dimension of the jacket.

Abstract: A coated window pane for rail vehicles, wherein the coating is made in a structured and electrically conductive form and includes filtering characteristics for radio signals, where the coating is structured as a conductive periodic grating, in which at least two annular coatings are respectively embedded in the intermediate spaces, the at least two annular coatings are respectively filled by a coated area, and the grating, the annular coatings and the coated areas are separated by insulating regions such that the coated, structured window panes have filtering characteristics such that signals or frequency ranges of signals from and to radio communication systems are arranged outside the vehicle pass through and signals or frequency ranges of signals from and to radio communication devices arranged inside the vehicle are blocked or are greatly attenuated, and such that high requirements with respect to heat shielding and sun shielding properties are also met.

Abstract: An antenna, a read/write unit, an radio frequency identification (RFID) arrangement and a method, wherein the antenna is configured to connect to an external antenna connection of the read/write unit via an antenna line, wherein the antenna includes a data memory having type information and/or having property information, the content of the data memory being readable by the read/write unit, and includes a measuring device for determining a value of the field strength or power of a radio frequency signal fed into the antenna by the read/write unit, and includes a device for informing the read/write unit about the value being reached or exceeded.

Abstract: An antenna, a read/write unit, an radio frequency identification (RFID) arrangement and a method, wherein the antenna is configured to connect to an external antenna connection of the read/write unit via an antenna line, wherein the antenna includes a data memory having type information and/or having property information, the content of the data memory being readable by the read/write unit, and includes a measuring device for determining a value of the field strength or power of a radio frequency signal fed into the antenna by the read/write unit, and includes a device for informing the read/write unit about the value being reached or exceeded.