Abstract: Various examples relate to determining a number and/or a confluency of cells in a microscopy image. To that end, the microscopy image is firstly rescaled and then processed.

Abstract: Various examples relate to determining a number and/or a confluency of cells in a microscopy image. To that end, the microscopy image is firstly rescaled and then processed.

Abstract: An overview image of a sample carrier is obtained in a method for ascertaining a measurement location of a microscope. A mapping or homography is determined, by means of which the overview image is perspectively convertible into a plan view image on the basis of a height of the sample carrier. The measurement location is identified, with the aid of the determined mapping/homography, in the overview image or in an output image derived therefrom.

Abstract: A method for regulating a light source of a microscope that illuminates an object, said method including specifying an intended value of an energy parameter of illumination radiation on the object; producing illumination radiation; providing an objective for focusing illumination radiation onto the object; ascertaining a transmission property of the objective for the illumination radiation; output coupling a component of the illumination radiation upstream of the objective as measurement radiation and measuring an actual value of the energy parameter of the measurement radiation; providing a relationship between energy parameters of the measurement radiation and energy parameters of the illumination radiation on the object, and setting the light source in such a way that the actual value of the energy parameter measured for the measurement radiation corresponds to the intended value of the energy parameter according to the relationship.

Abstract: Various examples of the disclosure relate to techniques to count cells in a microscopy image and/or to determine a degree of confluence of the cells in the microscopy image. To that end, machine-learned algorithms are used.

Abstract: Various examples of the disclosure relate to aspects associated with training a machine-learned algorithm configured to count cells in a microscopy image or to determine a degree of confluence of the cells.

Abstract: Various examples relate to determining a number and/or a confluency of cells in a microscopy image. To that end, the microscopy image is firstly rescaled and then processed.

Abstract: An overview image of a sample carrier is obtained in a method for ascertaining a measurement location of a microscope. A mapping or homography is determined, by means of which the overview image is perspectively convertible into a plan view image on the basis of a height of the sample carrier. The measurement location is identified, with the aid of the determined mapping/homography, in the overview image or in an output image derived therefrom.

Abstract: A microscope for imaging an object, comprising a lens for imaging the object through an imaging beam path, a light source for generating illumination radiation, at least one optical element for coupling the illumination radiation into the imaging beam path such that a common beam path is formed between the optical element and the lens, wherein the imaging radiation path runs through the common beam path, and the illumination radiation is guided through the common beam path. The microscope also comprises a monitoring device for measuring an energy parameter of the illumination radiation, said monitoring device determining an energy parameter of radiation which is incident on the monitoring device, and a beam splitter device which is arranged in the common beam path upstream of the lens in the illuminating direction and couples measurement radiation out of the illumination radiation onto the monitoring device.

Abstract: A method for regulating a light source of a microscope that illuminates an object, said method including specifying an intended value of an energy parameter of illumination radiation on the object; producing illumination radiation; providing an objective for focusing illumination radiation onto the object; ascertaining a transmission property of the objective for the illumination radiation; output coupling a component of the illumination radiation upstream of the objective as measurement radiation and measuring an actual value of the energy parameter of the measurement radiation; providing a relationship between energy parameters of the measurement radiation and energy parameters of the illumination radiation on the object, and setting the light source in such a way that the actual value of the energy parameter measured for the measurement radiation corresponds to the intended value of the energy parameter according to the relationship.

Abstract: A microscope for imaging an object, comprising a lens for imaging the object through an imaging beam path, a light source for generating illumination radiation, at least one optical element for coupling the illumination radiation into the imaging beam path such that a common beam path is formed between the optical element and the lens, wherein the imaging radiation path runs through the common beam path, and the illumination radiation is guided through the common beam path. The microscope also comprises a monitoring device for measuring an energy parameter of the illumination radiation, said monitoring device determining an energy parameter of radiation which is incident on the monitoring device, and a beam splitter device which is arranged in the common beam path upstream of the lens in the illuminating direction and couples measurement radiation out of the illumination radiation onto the monitoring device.

Abstract: The invention relates to a zoom objective lens with continuously adjustable magnification, comprising five lens groups, where the first lens group, the second lens group and the fifth lens group are fixed in relation to an object. The third lens group and the fourth lens group are axially displaceable. The following conditions apply to the lens: the variable air gap between the second lens group and the third lens group decreases or has a turning point with a transition from a low to a high magnification ?, the refractive power of the second, third and fifth lens groups is positive and the refractive power of the fourth lens group is negative.

Abstract: The invention relates to a zoom objective lens with continuously adjustable magnification, comprising five lens groups, where the first lens group, the second lens group and the fifth lens group are fixed in relation to an object. The third lens group and the fourth lens group are axially displaceable. The following conditions apply to the lens: the variable air gap between the second lens group and the third lens group decreases or has a turning point with a transition from a low to a high magnification ?, the refractive power of the second, third and fifth lens groups is positive and the refractive power of the fourth lens group is negative.

Abstract: Methods and apparatuses for laser microdissection are provided. For example, by a user at least one first system parameter is adjusted, for example varied, and at least one second system parameter of the laser microdissection system is adjusted automatically by the laser microdissection system such that a cut line has a desired cut line parameter.

Abstract: Methods and apparatuses for laser microdissection are provided. For example, by a user at least one first system parameter is adjusted, for example varied, and at least one second system parameter of the laser microdissection system is adjusted automatically by the laser microdissection system such that a cut line has a desired cut line parameter.