Abstract: A cable core for a cable, in particular, for an induction cable that includes multiple such cable cores which have a conductor that is interrupted in the longitudinal direction at specified longitudinal positions at multiple separation points, thereby forming two conductor ends. An insulating intermediate piece is provided for connecting the conductor ends, and the conductor ends are arranged on both sides of the intermediate piece. The conductor and the intermediate piece are surrounded together by a continuous insulating jacket in order to form the cable core. In a preferred concept, a respective intermediate piece is arranged between the two conductor ends by two adapter elements. In another preferred concept, a respective intermediate piece, in particular, a ceramic intermediate piece, is connected directly to two conductor ends. A cable is formed from a plurality of such cable cores.

Abstract: A cable, in particular an induction cable, extends in a longitudinal direction along a longitudinal axis and is provided for laying in a pipe. A laying aid is mounted on the cable. The laying aid is formed so that the cable can be rotated about the longitudinal axis during laying. The cable is laid by a method for laying the cable which extends in a longitudinal direction, in which the laying aid is provided and the cable is laid in the longitudinal direction. The cable is rotated about a longitudinal axis extending in the longitudinal direction during laying.

Abstract: An induction cable contains a plurality of cable conductors each having a conductor strand surrounded by insulation. The conductor strand contains a plurality of conductor sections which are spaced apart in the longitudinal cable direction at resonance dividing points by insulating intermediate pieces. The induction cable furthermore has a coupling device on which a plurality of the conductor strands are separated forming coupling ends at coupling positions. The coupling ends are connected to each other via the coupling device. A simple providing and installing of the induction cable and a simple replacement of damaged cable parts is thus enabled.

Abstract: A method and an apparatus for determining surface data and/or measurement data relating to a surface, for the quality control of an at least a partially transparent object, an ophthalmic lens, having an optically active first surface and an opposite optically active second surface. The method includes irradiating polarized light with an irradiation polarization from at least one illumination device onto an analysis area of the object to be examined, wherein, for the purpose of setting the irradiation polarization, the light is passed through a polarizer assigned to the illumination device or integrated in the latter, and receiving light which is reflected at the first and/or second surface and has an analysis polarization by use of at least one receiving device, wherein the light is passed through an analyzer assigned to the receiving device or integrated in the latter.

Abstract: A cable core for a cable, in particular, for an induction cable that includes multiple such cable cores which have a conductor that is interrupted in the longitudinal direction at specified longitudinal positions at multiple separation points, thereby forming two conductor ends. An insulating intermediate piece is provided for connecting the conductor ends, and the conductor ends are arranged on both sides of the intermediate piece. The conductor and the intermediate piece are surrounded together by a continuous insulating jacket in order to form the cable core. In a preferred concept, a respective intermediate piece is arranged between the two conductor ends by two adapter elements. In another preferred concept, a respective intermediate piece, in particular, a ceramic intermediate piece, is connected directly to two conductor ends. A cable is formed from a plurality of such cable cores.

Abstract: Adjustment of an eyeglass lens or a pair of eyeglasses by means of an individual brightness-dependent centering of an eyeglass lens. In particular, a method for adjusting an individual eyeglass lens for at least one eye of an eyeglass wearer, including: defining an individual usage situation which comprises at least one target brightness value for the light to be captured by the at least one eye; determining a position of the pupil in at least one direction of view of the at least one eye which occurs or is expected at the at least one target brightness value; determining a reference point of the eyeglass lens, in which the eyeglass lens effects a required correction of individual refraction data for the at least one direction of view; on the basis of the determined individual value of the pupil position, providing and arranging the eyeglass lens in such a manner that the at least one reference point of the eyeglass lens is arranged in front of the at least one eye of the eyeglass wearer.

Abstract: An optical visual aid is disclosed that assists an observer looking at an object through at least one spectacle lens. The optical visual aid has a dioptric power matched to an eye of the observer for at least one viewing direction. The dioptric power is composed of a plurality of dioptric power components. A first dioptric power component of the plurality of dioptric power components has a best possible corrective power for the eye of the observer at a defined distance of the object from the corneal vertex of the eye for the viewing direction. At the same time, a further dioptric power component of the plurality of dioptric power components has an additional astigmatic, partly corrective power for the viewing direction for the eye of the observer at the defined distance.

Abstract: A system for stereoscopic visualization of image information includes a display device defining a display area for displaying a left and a right partial image. The display device displays the left partial image to a left eye of an observer focused on the display area in a first viewing direction using a left observation beam path and the right partial image to the right eye in a second viewing direction using a right observation beam path. The system includes a vision assist through which the left and right observation beam paths pass. The vision assist sets a beam course for the left and right viewing observation beam paths wherein, starting from the left and right eyes in a direction toward the display area, a perpendicular distance between the left and right observation beam paths decreases to a minimum at a finite distance from the display surface.

Abstract: The invention is directed to a spectacle lens and includes a body which is transparent or at least partly transparent to light and has a phase object which guides the light incident at an angle of incidence ? on a side facing away from an observer into a direction depending on the wavelength ? of the light and the angle of incidence ? thereof. The phase object has a multiplicity of diffraction structures, which diffract monochromatic light at a wavelength of 380 nm???800 nm with a diffraction efficiency of ??70% into one and same order of diffraction |m|?1 when the monochromatic light is incident at an angle of incidence ? on the side of the lens facing away from the observer which lies within a diffraction-structure-specific angle interval 15° wide and dependent on the wavelength of the light.

Abstract: In order to allow conductors to be connected to a plug bridge in a simple manner, the plug bridge has a support to which a plurality of contact pins and also a plurality of conductor connections which are electrically conductively connected to, in each case, one contact pin are fastened. The support contains a housing which, together with the conductor connections, is covered by a common dimensionally stable and inherently rigid cover part in a closed state. The cover part has, in the region of the conductor connections, separating webs which extend between the conductor connections in the closed state. The entire dimensionally stable cover part can be moved from an open position to a closed position in a pivotable manner on the support.

Abstract: A method and an apparatus for determining surface data and/or measurement data relating to a surface, for the quality control of an at least a partially transparent object, an ophthalmic lens, having an optically active first surface and an opposite optically active second surface. The method includes irradiating polarized light with an irradiation polarization from at least one illumination device onto an analysis area of the object to be examined, wherein, for the purpose of setting the irradiation polarization, the light is passed through a polariser assigned to the illumination device or integrated in the latter, and receiving light which is reflected at the first and/or second surface and has an analysis polarization by use of at least one receiving device, wherein the light is passed through an analyser assigned to the receiving device or integrated in the latter.

Abstract: Method for assessing an optical property of kth order of an optical element at an evaluation point. The optical element has a boundary surface formed of a refractive base surface and a phase-modifying optical element. The method includes determining the properties of a wavefront in the local surrounding of the evaluation point by means of a local wavefront tracing, and determining the optical property at the evaluation point based on the properties of the wavefront in the local surrounding of the evaluation point, wherein the local wavefront tracing has a local wavefront tracing upon passage through the boundary surface, and the local wavefront tracing upon passage through the boundary surface is performed according to the equation for the local wavefront tracing through the refractive base surface, the equation being supplemented by an additive additional term PK(k).

Abstract: Adjustment of an eyeglass lens or a pair of eyeglasses by means of an individual brightness-dependent centering of an eyeglass lens. In particular, a method for adjusting an individual eyeglass lens for at least one eye of an eyeglass wearer, including: defining an individual usage situation which comprises at least one target brightness value for the light to be captured by the at least one eye; determining a position of the pupil in at least one direction of view of the at least one eye which occurs or is expected at the at least one target brightness value; determining a reference point of the eyeglass lens, in which the eyeglass lens effects a required correction of individual refraction data for the at least one direction of view; on the basis of the determined individual value of the pupil position, providing and arranging the eyeglass lens in such a manner that the at least one reference point of the eyeglass lens is arranged in front of the at least one eye of the eyeglass wearer.

Abstract: An optical visual aid is disclosed that assists an observer looking at an object through at least one spectacle lens. The optical visual aid has a dioptric power matched to an eye of the observer for at least one viewing direction. The dioptric power is composed of a plurality of dioptric power components. A first dioptric power component of the plurality of dioptric power components has a best possible corrective power for the eye of the observer at a defined distance of the object from the corneal vertex of the eye for the viewing direction. At the same time, a further dioptric power component of the plurality of dioptric power components has an additional astigmatic, partly corrective power for the viewing direction for the eye of the observer at the defined distance.

Abstract: Adjustment of an eyeglass lens or a pair of eyeglasses by means of an individual brightness-dependent centering of an eyeglass lens. In particular, a method for adjusting an individual eyeglass lens for at least one eye of an eyeglass wearer. The method includes defining an individual usage situation which includes at least one target brightness value for the light to be captured by the at least one eye; determining a position of the pupil in at least one direction of view of the at least one eye which occurs or is expected at the at least one target brightness value; determining a reference point of the eyeglass lens, in which the eyeglass lens effects a required correction of individual refraction data for the at least one direction of view; on the basis of the determined individual value of the pupil position, providing and arranging the eyeglass lens in such a manner that the at least one reference point of the eyeglass lens is arranged in front of the at least one eye of the eyeglass wearer.

Abstract: The invention is directed to a spectacle lens and includes a body which is transparent or at least partly transparent to light and has a phase object which guides the light incident at an angle of incidence ? on a side facing away from an observer into a direction depending on the wavelength ? of the light and the angle of incidence ? thereof. The phase object has a multiplicity of diffraction structures, which diffract monochromatic light at a wavelength of 380 nm???800 nm with a diffraction efficiency of ??70% into one and same order of diffraction |m|?1 when the monochromatic light is incident at an angle of incidence ? on the side of the lens facing away from the observer which lies within a diffraction-structure-specific angle interval 15° wide and dependent on the wavelength of the light.

Abstract: An induction cable contains a plurality of cable conductors each having a conductor strand surrounded by insulation. The conductor strand contains a plurality of conductor sections which are spaced apart in the longitudinal cable direction at resonance dividing points by insulating intermediate pieces. The induction cable furthermore has a coupling device on which a plurality of the conductor strands are separated forming coupling ends at coupling positions. The coupling ends are connected to each other via the coupling device. A simple providing and installing of the induction cable and a simple replacement of damaged cable parts is thus enabled.

Abstract: A cable core for a cable, in particular for an induction cable, contains multiple such cable cores which have a conductor that is interrupted in the longitudinal direction at specified longitudinal positions at multiple separation points, thereby forming two conductor ends. An insulating intermediate piece is provided for connecting the conductor ends, the conductor ends being arranged on both sides of the intermediate piece. The cable core is characterized in that the conductor and the intermediate piece are surrounded together by a continuous insulating jacket in order to form the cable core. In a preferred concept, a respective intermediate piece is to be arranged between two conductor ends by two adapter elements. In another preferred concept, a respective intermediate piece, in particular a ceramic intermediate piece, is to be connected directly to two conductor ends. A cable is formed from a plurality of such cable cores.

Abstract: A cable, in particular an induction cable, extends in a longitudinal direction along a longitudinal axis and is provided for laying in a pipe. A laying aid is mounted on the cable. The laying aid is formed so that the cable can be rotated about the longitudinal axis during laying. The cable is laid by a method for laying the cable which extends in a longitudinal direction, in which the laying aid is provided and the cable is laid in the longitudinal direction. The cable is rotated about a longitudinal axis extending in the longitudinal direction during laying.

Abstract: In order to allow conductors to be connected to a plug bridge in a simple manner, the plug bridge has a support to which a plurality of contact pins and also a plurality of conductor connections which are electrically conductively connected to, in each case, one contact pin are fastened. The support contains a housing which, together with the conductor connections, is covered by a common dimensionally stable and inherently rigid cover part in a closed state. The cover part has, in the region of the conductor connections, separating webs which extend between the conductor connections in the closed state. The entire dimensionally stable cover part can be moved from an open position to a closed position in a pivotable manner on the support.