Abstract: A compressor, which includes a housing and a rotor, in which the rotor includes a compressor wheel on at least one side, a compressor chamber being formed between the compressor wheel and the housing, the rotor being rotatably supported, an annular sealing channel being formed between the rotor and the housing, the sealing channel being routed from the compressor chamber to an area having a lower pressure, a connecting channel being routed from an area having a higher pressure to a first section of the sealing channel.

Abstract: The invention relates to a method and to a device for cooling a motor, the motor driving at least one, at least two-stage compressor (2) of a coolant circuit (1), which includes at least one first compression stage and a second compression stage (4), and a coolant is conducted through the coolant circuit (1), which is brought from a low pressure level to a medium pressure level in the first compression stage (3), and from the medium pressure level to a high pressure level in the second compression stage (4), and which is then expanded to the medium pressure level following the second compression stage (4) while outputting heat.

Abstract: A turbo compressor includes a first compressor stage, which has a first compressor wheel, and a second compressor stage, which has a second compressor wheel, the first compressor wheel and the second compressor wheel being situated on a common shaft (12), the shaft being supported without contact. To reduce the complexity of the turbo compressor, a contactless bearing of the shaft is situated between the first compressor wheel and the second compressor wheel.

Abstract: An implantable system for restoring accommodation capacity includes at least one ring configured to be implanted in a ciliary sulcus and a capacitor with a first capacitor plate and a second capacitor plate. The first capacitor plate is arranged on an implantable ring and the second capacitor plate is connected to a capsular bag.

Abstract: An implantable system for determining the accommodation requirement in an artificial accommodation system by optical measurement of the pupil diameter and the surrounding luminance, including at least one optical system, at least one data acquisition system that does not contact the ciliary muscle and measures a diameter of the pupil and luminance around at least one eye as a physical control signal for the accommodation requirement, at least one data processing system for generating an actuating signal for the optical system from the detected physical control signals or for the purpose of switching to the standby mode, at least one energy supply system, and at least one fixing system. The system has one sensor or a plurality of sensors with sensor elements for measuring the pupil diameter and the surrounding luminance.

Abstract: An implantable system for restoring accommodation capacity includes at least one ring configured to be implanted in a ciliary sulcus and a capacitor with a first capacitor plate and a second capacitor plate. The first capacitor plate is arranged on an implantable ring and the second capacitor plate is connected to a capsular bag.

Abstract: The present invention relates to an implantable system for determining the accommodation requirement in an artificial accommodation system by optical measurement of the pupil diameter and the surrounding luminance, comprising a) at least one optical system (3), b) at least one data acquisition system (8) which does not contact the ciliary muscle and has means for measuring a diameter of the pupil and luminance around at least one eye as a physical control signal for the accommodation requirement, c) at least one data processing system (9) for generating an actuating signal for the optical system (3) from the detected physical control signals or for the purpose of switching to the stand-by mode, d) at least one energy supply system (10), and e) at least one fixing system, wherein the system has one sensor (3) or a plurality of sensors with sensor elements for measuring the pupil diameter and the surrounding luminance.

Abstract: The present invention relates to an implantable system for determining the accommodation requirement in an artificial accommodation system by measuring the eyeball orientation using an external magnetic field, comprising a) at least one optical system (3), b) at least one data acquisition system (8) which does not contact the ciliary muscle and has means for measuring a spatial orientation of both eyeballs as a physical control signal for the accommodation requirement, c) at least one data processing system (9) for generating an actuating signal for the optical system (3) from the measured physical control signals, d) at least one energy supply system (10), and e) one fixing system, wherein the system in each case has means for measuring a magnetic field in both eyes and provision is made for transfer means for mutual information exchange between the means.