Abstract: The invention relates to a vacuum pump, in particular a vane pump, having a pump housing in which an intake chamber is provided, and a pump housing opening which feeds into the intake chamber, wherein an intake check valve is arranged in the pump housing opening and communicates with the atmosphere or feeds into an external vacuum chamber, with the intake check valve being accommodated in a pot-shaped valve housing, and with the pot-shaped valve housing having a housing bottom and a housing jacket, wherein the housing bottom is connectable to the housing jacket and the housing bottom can be snapped onto the housing jacket.

Abstract: Equipment (1) with which to fuse to each other at least two superposed laminar bands (2) and comprising two compressing members (3, 4) subtending between themselves a compression gap (5) through which said laminar bands (2) are guided. Additionally the equipment (1) comprises a laser (7) configured in a manner to transmit laser radiation (8) passing through the first compression member (3) and the compression gap (5) in the direction of the second compression member (4). According to the invention, the second compression member (4) is constituted by a resiliently borne sheetmetal-like support (9) which mechanically resiliently loads the laminar bands (2) in the compression gap (5) in the direction of the first compression member (3).

Abstract: Equipment (1) with which to fuse to each other at least two superposed laminar bands (2) and comprising two compressing members (3, 4) subtending between themselves a compression gap (5) through which said laminar bands (2) are guided. Additionally the equipment (1) comprises a laser (7) configured in a manner to transmit laser radiation (8) passing through the first compression member (3) and the compression gap (5) in the direction of the second compression member (4). According to the invention, the second compression member (4) is constituted by a resiliently borne sheetmetal-like support (9) which mechanically resiliently loads the laminar bands (2) in the compression gap (5) in the direction of the first compression member (3).

Abstract: The invention relates to a method for automatic lamp adjustment in a microscope without beam homogenizers in the illuminating beam path and a microscope equipped for the application of the method. According to the invention, the light power in the illuminating beam path is integrally measured with a detector behind the pupil plane of the microscope objective or behind the pupil plane of the illuminating beam path and the lamp is so adjusted relative to the illuminating beam path that the light power, which is detected by the detector, is a maximum. In a microscope, which is suitable for an automated lamp adjustment, for example, after an exchange of the lamp according to the method of the invention, motorized drives are provided for adjusting the lamp. These drives are driven sequentially by an evaluation and control computer until a maximum light power is detected with a detector.

Abstract: A power supply particularly suitable for high-speed optical data transmission employs readily available components to achieve desired voltage tolerances. More specifically, a voltage signal supplied to a load is converted into a digital signal and provided to a processor that derives a digital correction signal from the digital signal. The digital correction signal is then converted to an analog correction signal and is used by a feedback control circuit in the power supply to regulate the output voltage.

Abstract: The invention relates to a method for automatic lamp adjustment in a microscope without beam homogenizers in the illuminating beam path and a microscope equipped for the application of the method. According to the invention, the light power in the illuminating beam path is integrally measured with a detector behind the pupil plane of the microscope objective or behind the pupil plane of the illuminating beam path and the lamp is so adjusted relative to the illuminating beam path that the light power, which is detected by the detector, is a maximum. In a microscope, which is suitable for an automated lamp adjustment, for example, after an exchange of the lamp according to the method of the invention, motorized drives are provided for adjusting the lamp. These drives are driven sequentially by an evaluation and control computer until a maximum light power is detected with a detector.

Abstract: A power supply particularly suitable for high-speed optical data transmission employs readily available components to achieve desired voltage tolerances. More specifically, a voltage signal supplied to a load is converted into a digital signal and provided to a processor that derives a digital correction signal from the digital signal. The digital correction signal is then converted to an analog correction signal and is used by a feedback control circuit in the power supply to regulate the output voltage.

Abstract: The invention relates to one or more catheterization methods of altering conduction properties along pathways in the heart, and in vessels in conductive communication with the heart, and is particularly related to methods of ablative catheter treatment of atrial fibrillation and arrhythmias of accessory pathways.

Abstract: The invention relates to a method for automatic lamp adjustment in a microscope without beam homogenizers in the illuminating beam path and a microscope equipped for the application of the method. According to the invention, the light power in the illuminating beam path is integrally measured with a detector behind the pupil plane of the microscope objective or behind the pupil plane of the illuminating beam path and the lamp is so adjusted relative to the illuminating beam path that the light power, which is detected by the detector, is a maximum. In a microscope, which is suitable for an automated lamp adjustment, for example, after an exchange of the lamp according to the method of the invention, motorized drives are provided for adjusting the lamp. These drives are driven sequentially by an evaluation and control computer until a maximum light power is detected with a detector.

Abstract: A confocal microscope has a motorized scanning table for moving the sample perpendicularly to the optical axis of the microscope. The object is illuminated simultaneously at many places by means of a light source array. The light reflected or scattered at the object is detected by means of a diaphragm array, which is conjugate to the object and to the light source array. A sensor array is provided as a detector and makes a displacement of charges possible between individual positions in the scanning direction. The sensor is a so-called TDI sensor. The displacement of the charges is synchronized with the motion of the object corresponding to the motion of the image points in the plane of the sensor array. The image data can thereby be recorded during the motion of the object, so that even large object fields can be sensed in a short time with high lateral resolution.

Abstract: A confocal microscope has a motorized scanning table for moving the sample perpendicularly to the optical axis of the microscope. The object is illuminated simultaneously at many places by means of a light source array. The light reflected or scattered at the object is detected by means of a diaphragm array, which is conjugate to the object and to the light source array. A sensor array is provided as a detector and makes a displacement of charges possible between individual positions in the scanning direction. The sensor is a so-called TDI sensor. The displacement of the charges is synchronized with the motion of the object corresponding to the motion of the image points in the plane of the sensor array. The image data can thereby be recorded during the motion of the object, so that even large object fields can be sensed in a short time with high lateral resolution.

Abstract: The automatically acting injecting projectile, which may be fired from a rifle or handgun for anesthesia or drug treatment of animals, consists of a casing (9) on one end of which there is a plastic extension (10) and on the other a hollow needle (5). Gas propellant may be filled into pressure chamber (15) of the casing through a check valve (1) and channel (12). Upon impact of the injecting projectile in the body of the animal deformable projectile brake (7) is pushed back and jams on a stopping cone (6). At the same time outlet (5a) of hollow needle (5) is cleared by the moving sliding sleeve (8). Thus, piston (2) may be driven by the gas propellant, thereby injecting the drug contained in drug chamber (14) and the hollow needle into the surrounding tissue of the animal through outlet (5a).Charging with the drug before firing is carried out by puncturing a silicon caoutchouc seal (3) with a hypodermic needle through a puncture opening (4) in casing (9), and then injecting the drug into drug chamber (14).