Abstract: An apparatus for moving an optical system includes a main body, a supporting body to which the optical system is attached, a drive, a first plate spring, and a second plate spring. The drive moves the supporting body relative to the main body along a longitudinal axis of the supporting body. The first plate spring is fastened, in an outer region, to the main body and, in an inner region, to a first side of the supporting body. The second plate spring is fastened, in an outer region, to the main body and, in an inner region, to a second side of the supporting body. The outer region and the inner region of the first plate spring and the outer region and the inner region of the second plate spring are each connected to one another via a plurality of arms which extend in the circumferential direction.

Abstract: A turbo-machine arrangement having a compressor section comprising a compressor shaft, an electric machine having a shaft, the compressor shaft is coaxial to the shaft. The compressor shaft is coupled to the electric machine shaft. The electric machine and compressor section are arranged in a common housing and mounted via bearings. The housing having a supply line via which uncompressed working medium is supplied, a discharge line, via which compressed working medium is discharged, and an ejector, supplied via a first connection with working medium at a first pressure level for drawing in working medium at a lower second pressure level via a second connection. A mixture formed in the ejector is supplied to the electric machine and/or another assembly to be cooled via a third connection.

Abstract: A turbo-machine arrangement having a compressor section comprising a compressor shaft, an electric machine having a shaft, the compressor shaft is coaxial to the shaft. The compressor shaft is coupled to the electric machine shaft. The electric machine and compressor section are arranged in a common housing and mounted via bearings. The housing having a supply line via which uncompressed working medium is supplied, a discharge line, via which compressed working medium is discharged, and an ejector, supplied via a first connection with working medium at a first pressure level for drawing in working medium at a lower second pressure level via a second connection. A mixture formed in the ejector is supplied to the electric machine and/or another assembly to be cooled via a third connection.