Abstract: A circuit breaker for operation in a potentially explosive environment. The circuit breaker comprises a hybrid switch which has a main current path with an isolating element and a secondary current path, connected in parallel to the main current path. A semiconductor switch and a control circuit are also provided. The isolating element and the semiconductor switch are actuated by the control circuit.

Abstract: The disclosure relates to a method for scanning microscopy wherein a specimen is scanned simultaneously with a plurality of illumination spots of an excitation light. The light emitted by one specimen location irradiated with one illumination spot is detected independently of the light emitted by another specimen location illuminated with another illumination spot. A microscopic image of the specimen can be compiled from the emitted light detected for the different specimen locations. The method provides that the intensities of the different illumination spots are set independently of one another, and in that the illumination spots are guided over the specimen one after another in a scan line. The disclosure additionally relates to a scanning microscope.

Abstract: The disclosure relates to a method for scanning microscopy wherein a specimen is scanned simultaneously with a plurality of illumination spots of an excitation light. The light emitted by one specimen location irradiated with one illumination spot is detected independently of the light emitted by another specimen location illuminated with another illumination spot. A microscopic image of the specimen can be compiled from the emitted light detected for the different specimen locations. The method provides that the intensities of the different illumination spots are set independently of one another, and in that the illumination spots are guided over the specimen one after another in a scan line. The disclosure additionally relates to a scanning microscope.

Abstract: The invention relates to a method for scanning microscopy wherein a specimen is scanned simultaneously with a plurality of illumination spots of an excitation light. The light emitted by one specimen location irradiated with one illumination spot is detected independently of the light emitted by another specimen location illuminated with another illumination spot. A microscopic image of the specimen can be compiled from the emitted light detected for the different specimen locations. The method provides that the intensities of the different illumination spots are set independently of one another, and in that the illumination spots are guided over the specimen one after another in a scan line. The invention additionally relates to a scanning microscope.

Abstract: The invention relates to a method for scanning microscopy wherein a specimen is scanned simultaneously with a plurality of illumination spots of an excitation light. The light emitted by one specimen location irradiated with one illumination spot is detected independently of the light emitted by another specimen location illuminated with another illumination spot. A microscopic image of the specimen can be compiled from the emitted light detected for the different specimen locations. The method provides that the intensities of the different illumination spots are set independently of one another, and in that the illumination spots are guided over the specimen one after another in a scan line. The invention additionally relates to a scanning microscope.

Abstract: Currently, relatively weak light sources with low light intensities are used in wide-field microscopes. Inevitably, focusing in the pupil plane thereby results in low light intensities in the sample, since the output of the light source is distributed over a very large sample area. However, there are also wide-field technologies requiring very high intensities, for example, photo-activates localization (PAL) microscopy. It is the object of the invention to allow, with little expenditure, the flexible adjustment of the illumination light intensity in the sample. For this purpose, a laser (2) is used for a light source, and a variable lens (10) is arranged in the illumination beam path thus making a variable adjustment of a bean cross section of the illumination light in an intermediate image plane possible, wherein a divergence of the illumination light is identical for different beam cross sections. In this way, the size of the visual field of the microscope can be flexibly adjusted.

Abstract: A method of determining a measurement value on the basis of a plurality of single molecule events of marker molecules in a sample comprises the steps of selecting the marker molecules from a group of marker molecules which are transferable between a measurable state in which a measurement signal necessary for determining the at least one measurement value is obtainable from the marker molecules and a non-measurable state, of providing the marker molecules in the sample at such an absolute concentration that the at least one measurement value is not determinable, if all marker molecules are in their measurable state, and adjusting a measurement concentration of the marker molecules in the measurable state by means of applying the physical signal to the sample at such an intensity that the at least one measurement value is determinable within a defined measurement area of the sample.

Abstract: The invention relates to a holding loop for installation into a person conveying means, having a fastening loop (1) for pulling onto a holding rod, and a gripping loop (2) for a person, the two loops comprising a strap or a flat band. The fastening loop (1) is formed by fixing the strap or band ends or the strap or band sections above and/or below the holding rod in a hollow connecting element which has at least two individual elements (3a, 3b), which are arranged in pairs, with upper edge zones (4a, 4b) and lower edge zones (5a, 5b) and a respective central surface part as the advertising surface. The strap or band ends or strap or band sections are fastened between the individual elements (3a, 3b). An advertisement carrier can be pushed into the cavity via a lateral insertion gap (10). This is also possible if protective coverings are arranged over the individual elements.