Abstract: An illumination system for producing a spatially distributed illumination pattern for measuring the cornea of an eye and, in particular, for determining the topography of the eye. In so doing, the system facilitates distance-independent measurements. The illumination system includes an illumination unit, an optical element for collimating the illumination light and a unit for producing a spatially distributed illumination pattern in the form of a fraxicon. In particular, the illumination unit includes a plurality of illumination modules which are arranged such that each illumination module illuminates part of the fraxicon, and consequently a full-area illumination is facilitated. The system for producing a spatially distributed illumination pattern serves to determine the topography of the cornea of an eye. Here, the system is designed as a compact module, and so it can be easily combined with other measurement systems, without interfering with the beam paths thereof.

Abstract: A method for determining the topography of the cornea of an eye on the basis of an optical, contactless data capture. In the method for determining the topography of the cornea of an eye, which is based on a deflectometric method, the deflectometric measurements are carried out with the aid of a keratometric method by virtue of additional OCT-based scans being made at the keratometric measurement points, wherein the two measurement systems are registered to one another and both the keratometric and the OCT-based measurement values are recorded and used for mutual calibration to determine and output the topographic data. The proposed method serves to determine the topography of the cornea of an eye. It is helpful to ascertain the topography in order to be able to draw conclusions about possible pathological changes. Moreover, the exact measurement of the corneal topography is of great importance for correcting refractive errors.

Abstract: A method for determining the topography of the cornea of an eye on the basis of an optical, contactless data capture. In the method for determining the topography of the cornea of an eye, which is based on a deflectometric method, the deflectometric measurements are carried out with the aid of a keratometric method by virtue of additional OCT-based scans being made at the keratometric measurement points, wherein the two measurement systems are registered to one another and both the keratometric and the OCT-based measurement values are recorded and used for mutual calibration to determine and output the topographic data. The proposed method serves to determine the topography of the cornea of an eye. It is helpful to ascertain the topography in order to be able to draw conclusions about possible pathological changes. Moreover, the exact measurement of the corneal topography is of great importance for correcting refractive errors.

Abstract: A method for determining the topography of the cornea of an eye on the basis of an optical, contactless data capture. In the method for determining the topography of the cornea of an eye, which is based on a deflectometric method, the deflectometric measurements are carried out with the aid of a keratometric method by virtue of additional OCT-based scans being made at the keratometric measurement points, wherein the two measurement systems are registered to one another and both the keratometric and the OCT-based measurement values are recorded and used for mutual calibration to determine and output the topographic data. The proposed method serves to determine the topography of the cornea of an eye. It is helpful to ascertain the topography in order to be able to draw conclusions about possible pathological changes. Moreover, the exact measurement of the corneal topography is of great importance for correcting refractive errors.

Abstract: An illumination system for producing a spatially distributed illumination pattern for measuring the cornea of an eye and, in particular, for determining the topography of the eye. In so doing, the system facilitates distance-independent measurements. The illumination system includes an illumination unit, an optical element for collimating the illumination light and a unit for producing a spatially distributed illumination pattern in the form of a fraxicon. In particular, the illumination unit includes a plurality of illumination modules which are arranged such that each illumination module illuminates part of the fraxicon, and consequently a full-area illumination is facilitated. The system for producing a spatially distributed illumination pattern serves to determine the topography of the cornea of an eye. Here, the system is designed as a compact module, and so it can be easily combined with other measurement systems, without interfering with the beam paths thereof.

Abstract: A method for determining the topography of the cornea of an eye on the basis of an optical, contactless data capture. In the method for determining the topography of the cornea of an eye, which is based on a deflectometric method, the deflectometric measurements are carried out with the aid of a keratometric method by virtue of additional OCT-based scans being made at the keratometric measurement points, wherein the two measurement systems are registered to one another and both the keratometric and the OCT-based measurement values are recorded and used for mutual calibration to determine and output the topographic data. The proposed method serves to determine the topography of the cornea of an eye. It is helpful to ascertain the topography in order to be able to draw conclusions about possible pathological changes. Moreover, the exact measurement of the corneal topography is of great importance for correcting refractive errors.

Abstract: A drive train for a motor vehicle comprises an internal combustion engine which has a crankshaft and is designed to provide drive power for the motor vehicle. A clutch arrangement has an input member and at least one output member, the input member being connected to the crankshaft. A transmission arrangement implements a plurality of gear stages, the transmission arrangement having a transmission housing, at least one input shaft, and at least one output shaft. The output shaft is connectable to driven wheels of the motor vehicle. An electric machine is designed to provide drive power for the motor vehicle and is connected to a transmission shaft of the transmission arrangement. The transmission shaft has a shaft section which extends from the transmission housing and is connected to the electric machine via a traction drive mechanism.

Abstract: A drivetrain for a motor vehicle has a first electric machine provides drive power, wherein the first electric machine is connected to an electrical energy store. A differential can distribute drive power to two driven wheels or axles of the motor vehicle. A first transmission arrangement which connects the first electric machine to the differential. A second electric machine which is coupled to an internal combustion engine in order to charge the electrical energy store in a generator mode. A second transmission arrangement connects the internal combustion engine to the differential. The second transmission arrangement has a first gear stage and a second gear stage which can be alternately engaged, for the transmission of drive power from the internal combustion engine to the differential, by means of a clutch arrangement.

Abstract: Method for determining an adjustment parameter in a hydraulic actuator arrangement for a motor vehicle drivetrain. The actuator arrangement has a pump and a hydraulic cylinder. A pressure port of the pump is connected to a port of the hydraulic cylinder. The adjustment parameter is a function of the volume of the fluid that must be delivered by the pump in order to realize a predetermined operating point of the actuator arrangement. The operating point is defined by a value pair of an operating point rotational speed value of the pump and an operating point control value of the pump. The method has the steps: regulating the pump to the operating point rotational speed value such that the pump delivers a fluid volume flow rate corresponding to the operating point rotational speed value; and integrating the fluid volume flow rate over the time until a termination operating state of the actuator arrangement, in which the control value of the pump is less than or equal to the operating point control value.

Abstract: A drive train for a motor vehicle comprises an internal combustion engine which has a crankshaft and is designed to provide drive power for the motor vehicle. A clutch arrangement has an input member and at least one output member, the input member being connected to the crankshaft. A transmission arrangement implements a plurality of gear stages, the transmission arrangement having a transmission housing, at least one input shaft, and at least one output shaft. The output shaft is connectable to driven wheels of the motor vehicle. An electric machine is designed to provide drive power for the motor vehicle and is connected to a transmission shaft of the transmission arrangement. The transmission shaft has a shaft section which extends from the transmission housing and is connected to the electric machine via a traction drive mechanism.

Abstract: Method for determining an adjustment parameter in a hydraulic actuator arrangement for a motor vehicle drivetrain. The actuator arrangement has a pump and a hydraulic cylinder. A pressure port of the pump is connected to a port of the hydraulic cylinder. The adjustment parameter is a function of the volume of the fluid that must be delivered by the pump in order to realize a predetermined operating point of the actuator arrangement. The operating point is defined by a value pair of an operating point rotational speed value of the pump and an operating point control value of the pump. The method has the steps: regulating the pump to the operating point rotational speed value such that the pump delivers a fluid volume flow rate corresponding to the operating point rotational speed value; and integrating the fluid volume flow rate over the time until a termination operating state of the actuator arrangement, in which the control value of the pump is less than or equal to the operating point control value.

Abstract: A drivetrain for a motor vehicle has a first electric machine provides drive power, wherein the first electric machine is connected to an electrical energy store. A differential can distribute drive power to two driven wheels or axles of the motor vehicle. A first transmission arrangement which connects the first electric machine to the differential. A second electric machine which is coupled to an internal combustion engine in order to charge the electrical energy store in a generator mode. A second transmission arrangement connects the internal combustion engine to the differential. The second transmission arrangement has a first gear stage and a second gear stage which can be alternately engaged, for the transmission of drive power from the internal combustion engine to the differential, by means of a clutch arrangement.

Abstract: The invention relates to a swimming aid that is to be worn on the body and provides floatability. Said swimming aid comprises a dimensionally variable part that can be adjusted to the body size and is provided with a first, detachable closing means, with the aid of which the variable body size adjustment can be made, and at least one buoyancy element. The inventive swimming aid comprises an additional second, detachable closing means that can be detached without modifying the set body size adjustment of the dimensionally variable part. A swimming aid in the form of a jacket and a swimming aid encompassing a supporting belt system are particularly preferred embodiments.

Abstract: The invention relates to a tilting table array for micro-positioning objects, preferably for defined generation of oscillating movements of optical objects, such as for instance mirror elements in projection lens arrays, including a tilting table carrying the object and connected to at least one drive element as well as a tilting table housing that is coupled to the tilting table via an elastic connection. According to the invention, the tilting table, the tilting table housing and the elastic connection comprise one monolithic unit.

Abstract: A color display tube (1) is disclosed having an improved suspension system of the color selection electrode (12). The positional stability of the color selection electrode (12) is of eminent importance for the color purity of the color display tube (1). If the color selection electrode (12) slightly shifts, the electron beams (7,8,9) may impinge on electroluminescent material of the wrong color, leading to discolorations. It is recognized that this positional stability is improved by applying free end portions (22) of a smaller diameter on the supporting elements (17) because this will lower the friction between the free end portions (22) and the suspension means (20). This smaller diameter has the disadvantage that the insertion of the color selection electrode (12) into the display window (3) of the color display tube (1) becomes more difficult. This invention solves this problem by applying free end portions (22), which are provided with a centering tip (44).

Abstract: A color display tube (1) is disclosed, which comprises an improved suspension system of the color selection electrode (12). The color display tube has suspension means that are constructed so as to be self-locking. The suspension means (20) are provided with an additional flat portion (31). This plate has an aperture (32) that is shaped such that it has at least three surfaces of engagement (42, 43) for the free end portion (22) of the supporting elements (17) connected to the inside of the upright edge (18) of the display window (3). When the color display tube is exposed to shock loading, the construction of the flat portion (31) is capable of absorbing this shock without the color selection electrode (12) becoming detached from the supporting elements (17). The action is based on the friction between the surfaces of engagement (42) and the free end portion (22).

Abstract: A color display tube (1) is disclosed, which comprises an improved suspension system of the color selection electrode (12). The color display tube has suspension means that are constructed so as to be self-locking. The suspension means (20) are provided with an additional flat portion (31). This plate has an aperture (32) that is shaped such that it has at least three surfaces of engagement (42, 43) for the free end portion (22) of the supporting elements (17) connected to the inside of the upright edge (18) of the display window (3). When the color display tube is exposed to shock loading, the construction of the flat portion (31) is capable of absorbing this shock without the color selection electrode (12) becoming detached from the supporting elements (17). The action is based on the friction between the surfaces of engagement (42) and the free end portion (22).

Abstract: A color display tube (1) is disclosed with an improved suspension system of the color selection electrode (12). The color display tube has suspension means that have a self-locking construction. The suspension means (20) are provided with an additional flat portion (31). This plate has an aperture (32) that is shaped such that it has at least three surfaces of engagement (42, 43) for the free end portion (22) of the supporting elements (17) which are connected to the inside of the upright edge (18) of the display window (3). When the color display tube is exposed to a shock the construction of the flat portion (31) is capable of absorbing this shock without the color selection electrode (12) coming down from the supporting elements (17). The action is based on the friction between the surfaces of engagement (42) and the free end portion (22).