Abstract: A tube system for a microscope includes two lenses and a glass element. The tube system can have a compact build and chromatic aberrations that lie within a specified range.

Abstract: An apparatus for mounting an objective to a microscope structural member, and a method for operating a microscope. The apparatus for mounting an objective to a microscope structural member includes a receptacle, which is mounted or mountable to the microscope structural member, a slide-in part, which is mounted or mountable to the objective and is insertable into the receptacle where it can be brought into a locked position in which there is play between the slide-in part and the receptacle, and a tensioning unit, which, in the locked position, braces the slide-in part and the receptacle against each other in order to eliminate the play. The apparatus furthermore includes a first collision detection device, which has at least one first displacement sensor for detecting a displacement of the slide-in part and/or of the objective, in each case relative to the receptacle.

Abstract: An immersion objective comprises an objective body in which optical components are accommodated, at least one immersion fluid tank and at least one objective-body coupling connection on the objective body. The immersion fluid tank can be supported in a detachable manner via the objective-body coupling connection. At least one pump is supported via the objective body, wherein the pump is arranged in order to convey immersion fluid from the immersion fluid tank to an objective front side. A control electronics component is supported via the objective body and is configured to control the at least one pump.

Abstract: An immersion set for retrofitting an immersion objective comprises at least one immersion fluid tank, at least one pump fluidly connected to the immersion fluid tank, and a control electronics unit configured at least to control the pump. A fastening device is configured to realize the load-bearing fastening of the at least one immersion fluid tank, the at least one pump and the control electronics unit on the immersion objective or on a mounting adapter for the immersion objective.

Abstract: A protective device for protecting microscope components from contact with a liquid comprises at least one objective protection ring for arrangement around an objective, wherein the objective protection ring comprises an annular contact area for contacting the objective; and a stand protector with a drainage channel for draining a liquid. The objective protection ring comprises a lower ring area located below the contact area and protruding further outwards radially than the contact area in order to form a free space in the inward direction.

Abstract: The invention relates to a microscope, having: a specimen chamber for a specimen (2, 20); at least one microscope objective (1); one motor driven objective changer (32), which, for the purposes of changing a microscope objective, moves the least one microscope objective (1) through a change volume (34); a control device (20) controlling the objective changer (32); and an apparatus for applying a liquid immersion agent into a gap (6) between the microscope objective (1) and a specimen (2, 20) received in the specimen chamber, said apparatus having a jet device (4) which is designed to introduce the immersion agent in a jet (5) laterally into the gap (6), the jet device (4) having an operating position (B) for laterally introducing the immersion agent into the gap (6), in which position the jet device (4) is located in the change volume (34), the jet device (4) is coupled to a drive (28) for adjusting the location of the jet device (4), and the control device (20) is connected to and configured for control of t

Abstract: The invention relates to a device for applying a liquid immersion agent into a gap (6) between a microscope objective (1) and a sample (2, 20) to be examined under the microscope, wherein the device has a blasting device (4) which is designed to introduce the immersion agent laterally into the gap (6) in a jet (5), and the blasting device (4) is designed to spray the immersion agent into the gap (6) in the form of a vapor or spray mist jet (5).

Abstract: An immersion set for retrofitting an immersion objective comprises at least one immersion fluid tank, at least one pump fluidly connected to the immersion fluid tank, and a control electronics unit configured at least to control the pump. A fastening device is configured to realize the load-bearing fastening of the at least one immersion fluid tank, the at least one pump and the control electronics unit on the immersion objective or on a mounting adapter for the immersion objective.

Abstract: A protective device for protecting microscope components from contact with a liquid comprises at least one objective protection ring for arrangement around an objective, wherein the objective protection ring comprises an annular contact area for contacting the objective; and a stand protector with a drainage channel for draining a liquid. The objective protection ring comprises a lower ring area located below the contact area and protruding further outwards radially than the contact area in order to form a free space in the inward direction.

Abstract: An immersion objective comprises an objective body in which optical components are accommodated, at least one immersion fluid tank and at least one objective-body coupling connection on the objective body. The immersion fluid tank can be supported in a detachable manner via the objective-body coupling connection. At least one pump is supported via the objective body, wherein the pump is arranged in order to convey immersion fluid from the immersion fluid tank to an objective front side. A control electronics component is supported via the objective body and is configured to control the at least one pump.

Abstract: An adapter is suitable for adapting a microscope objective to an electronic interface of a digital microscope. A method includes measuring and storing optical properties of the microscope objective; measuring a storing mechanical properties of the microscope objective; and providing the stored optical and mechanical properties to the electronic interface as optical and mechanical data. The adapter includes a mechanical interface having an adjuster for adjusting the optical components of the standard objective, a digital memory, an electronic interface and at least one electronic component for providing the data of the digital memory to the electronic interface.

Abstract: An adapter is suitable for adapting a microscope objective to an electronic interface of a digital microscope. A method includes measuring and storing optical properties of the microscope objective; measuring a storing mechanical properties of the microscope objective; and providing the stored optical and mechanical properties to the electronic interface as optical and mechanical data. The adapter includes a mechanical interface having an adjuster for adjusting the optical components of the standard objective, a digital memory, an electronic interface and at least one electronic component for providing the data of the digital memory to the electronic interface.

Abstract: A tube system for a microscope includes two lenses and a glass element. The tube system can have a compact build and chromatic aberrations that lie within a specified range.

Abstract: The invention relates to a method for illuminating an object in a digital light microscope, to a digital light microscope, and to a bright field reflected-light illumination device for a digital light microscope. According to the invention, the bright field reflected-light illumination and the dark field reflected-light illumination are configured with light-emitting diodes as light sources and are individually or jointly drivable via a control unit. Both the bright field reflected-light illumination and the dark field reflected-light illumination are configured as “critical” illumination, in which the light source is imaged into the object plane.

Abstract: The invention relates to an objective lens mount (39) with specimen protection and crush protection for objective lenses (4) on a microscope, consisting of an outer objective lens collar (1) having a unit (15) for mounting on an interface of the microscope, preferably on a microscope stand, and a safety element (22) arranged spring mounted and axially movable in the objective lens collar (1), which safety element contains the objective lens (4). According to the invention, in order to maintain a definable stand-off distance between the front lens (5) of the objective lens (4) and the safety element (22) in the objective lens mount (39), a sensor (6) is provided, coupled to a control unit.

Abstract: A digital microscope system, having one or several objectives, a tube lens system, a digital image recording device, a stand, a holder for a specimen and an illuminating apparatus, and optionally at least one magnification changer. One or several objectives, the tube lens system, the digital image recording device and the illuminating apparatus are integrated into a compact optical assembly, and the optical assembly is joinable to the stand in several versions that differ with regard to the spatial position and orientation of the optical assembly relative to the stand and to the specimen. The spatial position and orientation of the optical assembly relative to the stand and to the specimen may correspond, in a first version of the joining, to an upright microscope configuration and, in a second version of the joining, to an inverted microscope configuration.

Abstract: The invention relates to a method for calibrating an optical instrument which comprises at least a motorized zoom system, an objective, an image sensor and an image processing unit. The method comprises the following steps: establishing calibration data DZRef of the zoom system with a reference objective and storing these in an internal memory of the zoom system; establishing calibration data DORef of the objective with a reference zoom system and storing these in an internal memory of the objective; reading the internal memories of the zoom system and of the objective and applying a digital-optical correction of an image acquired by an image sensor with the calibration data DZRef and DORef. The invention moreover relates to an optical instrument, in particular a digital microscope, to which the calibration method according to the invention can be applied.

Abstract: A microscope comprising multiple optical systems in the imaging beam path and at least one subassembly, the optical effect of which in relation to the imaging beam path can be modified by controlling the subassembly, e.g. a group of lenses or a diaphragm that can be moved in the direction of the optical axis, a diaphragm having a variable aperture, a digital zoom device, a shutter, or a focusing device. The microscope includes a control unit which is designed to generate control signals for the subassembly in a first mode of operation to regulate or control the functional parameters exclusively of the imaging optical system with which the subassembly is associated, and additionally in a second mode of operation to regulate or control the functional parameters of the entire optical system of the microscope.

Abstract: The invention relates to a method for calibrating an optical instrument which comprises at least a motorized zoom system, an objective, an image sensor and an image processing unit. The method comprises the following steps: establishing calibration data DZRef of the zoom system with a reference objective and storing these in an internal memory of the zoom system; establishing calibration data DORef of the objective with a reference zoom system and storing these in an internal memory of the objective; reading the internal memories of the zoom system and of the objective and applying a digital-optical correction of an image acquired by an image sensor with the calibration data DZRef and DORef. The invention moreover relates to an optical instrument, in particular a digital microscope, to which the calibration method according to the invention can be applied.

Abstract: The invention relates to an objective lens mount (39) with specimen protection and crush protection for objective lenses (4) on a microscope, consisting of an outer objective lens collar (1) having a unit (15) for mounting on an interface of the microscope, preferably on a microscope stand, and a safety element (22) arranged spring mounted and axially movable in the objective lens collar (1), which safety element contains the objective lens (4). According to the invention, in order to maintain a definable stand-off distance between the front lens (5) of the objective lens (4) and the safety element (22) in the objective lens mount (39), a sensor (6) is provided, coupled to a control unit.