Abstract: The invention relates to a stand base (10) for microscopes, which encompasses a stand base body (12) on which multiple rollers (14 to 20) for displacing the stand base (10) are fastened. The stand base (10) furthermore has a braking system (40) to prevent displacement of the stand base (10), the braking system encompassing at least two braking feet (44, 46).

Abstract: A microscope (10) includes an objective system (30) and a zoom system (32). The microscope (10) furthermore has a manually rotatable rotary wheel (108) for adjusting the magnification of the zoom system (32), the rotary wheel (108) being rotatable within a predetermined maximum rotation range. The rotary wheel (108) includes a first engagement element (162, 164). In addition, at least one second engagement element (130 to 136) is movably mounted on a housing (100) of the microscope (10). This second engagement element (130 to 136) is movable between a deactivated and an activated position, being in engagement with the first engagement element (162, 164) in an activated position. The position of the second engagement element (130 to 136) is determined by the respective objective (44, 52) currently received in the beam path.

Abstract: The invention relates to an incident illumination device for a microscope, for viewing a sample (1) in the microscope (10), having a planar light source (100) for incident illumination of the sample (1), wherein the planar light source (100) comprises a panel-shaped light guide having a lower boundary surface (111), an upper boundary surface, and at least one lateral surface, as well as at least one light-emitting means that is arranged so that it irradiates light, via at least one lateral surface serving as a light entry surface, into the light guide in such a way that said light propagates in the light guide due to total reflection; wherein the total reflection is disrupted in defined fashion by an element abutting at the lower boundary surface of the light guide against a contact surface so that an outcoupling of light occurs at the upper boundary surface of the light guide.

Abstract: A method for calibrating a microscope apparatus (1) having a variable optical magnification system (13) and a detector device (12) is disclosed. First, a calibrating mode is performed, wherein an image (50) of an object (10) is captured at a known reference magnification value, two characteristic reference points (32a, 32b) are determined in the image, a reference distance (34) between the two reference points is determined, and a correlation is determined between the reference distance and the reference magnification value. Later, a measuring mode is implemented, in which a current image (51) of the object (10) is captured at a second magnification value, the two characteristic reference points (52a, 52b) are identified therein, a current distance (54) between the current reference points is determined, and the second magnification value is determined from the current distance (54) based on the correlation between the reference distance (34) and the reference magnification value.

Abstract: A medical technical apparatus includes an optical viewing unit including a receiver unit and a wireless footswitch device. The wireless footswitch device includes at least one switch configured to generate a control command corresponding to a performance of a function of the optical viewing unit, a transmitter unit configured to wirelessly, unidirectionally transmit data signals corresponding to the control command from the wireless footswitch device to the optical viewing unit using radio technology, a control processor, and a switching device. The switching device is configured to switch the control processor from an operating mode to a standby mode upon completion of a data transfer of the data signals from the wireless footswitch to the optical viewing unit and is also configured to switch the control processor from the standby mode to the operating mode in response to an actuation of the at least one switch for generating the control command.

Abstract: A microscope includes an image acquisition system, microscope components and a touch screen. The image acquisition system is configured to optically and digitally image an object so as to produce an object image The microscope components are at least one of motorized and electrically controllable. The touch screen is configured to display the object image in a display area thereof and to sense inputs in the display area within the displayed object image so as to change settings of the microscope components.

Abstract: A microscope device (100) includes a surgical microscope (20), a camera (30), connected to the surgical microscope (20), for sensing an object (200) imaged by the surgical microscope, a stand (10) carrying the surgical microscope (20) as well as the camera (30), an operating unit (50), spatially separated from the camera (30), for controlling device functions of the camera (30). The operating unit (30) includes a screen (40) for displaying activatable device functions (51) and a selection and activation means, embodied as an actuatable rotary/push operating means (60), for selecting and activating one of the device functions displayed. The operating unit (50) is set up such that by rotating the rotary/push operating means (60), one (52) of the displayed device functions is selected, and by pushing the rotary/push operating means (60), the selected device function (52) is activated.

Abstract: A diaphragm arrangement (100) for generating an oblique illumination in a microscope comprises a carrier element (130), an iris diaphragm element (110) having a variable iris diaphragm opening (111), a further diaphragm element (120) having a diaphragm opening (121) that, when it is in a first position relative to the carrier element (130), covers a portion of the iris diaphragm opening (111) and is mounted rotatably around a first rotation axis (A), such that a rotation of the further diaphragm element (120) around the first rotation axis (A) changes that portion of the iris diaphragm opening (111) which is covered by the further diaphragm element (120), and an actuation element (140) coupled to the further diaphragm element (120) via a coupling device (150) such that a rotation of the further diaphragm element (120) around the first rotation axis (A) is produced by an actuation of the actuation element (140).

Abstract: A microscope includes a light source including an LED device having a light radiating surface and a light directing element including a larger coupling-out surface. The light directing element is disposed so as to couple in light radiated by the light source and couple out the radiated light from the coupling-out surface. The light directing element is disposed so that the light is radiated out in an angular range of ±10° to ±50° and illuminates an area at 5 meters in an angular range of at least ±5° with intensity fluctuations of less than 50%. A condenser is disposed between the coupling-out surface of the light directing element and the object to be viewed. The condenser has an aperture with an aperture dimension and is disposed such that the aperture is irradiated completely with the light coupled out from the coupling-out surface.

Abstract: The present invention relates to an illuminating device for an operating microscope including two observation beam paths for a first observer and two observation beam paths for a second observer. An illuminating system provides two parallel illuminating beam paths and a deflecting device, for deflecting the parallel illuminating beam paths onto an object that is to be observed. The deflecting device includes a first semitransparent deflector element which is associated with a first observation beam path of the first observer and a first observation beam path of the second observer, and a second semitransparent deflector element, which is associated with a second observation beam path of the first observer and a second observation beam path of the second observer. The first illuminating beam path acts exclusively on the first deflector element and the second illuminating beam path acts exclusively on the second deflector element.

Abstract: The present invention relates to an illumination device for a stereomicroscope, in particular a surgical microscope for eye surgery, having at least one light source (10), a collector lens system (14), an aperture diaphragm (16), a condenser lens system (18), and an objective (22), illumination light being directed from the light source (10) through the collector lens system (14), the aperture diaphragm (16), the condenser lens system (18), and the objective (22) into the object plane (E19), the aperture diaphragm (16) being provided as a double orifice plate or four-orifice plate.

Abstract: A surgical microscope system (100) for ophthalmology, in particular for cataract surgery, comprising a surgical microscope (10) having an optical viewing unit (13), is proposed, in which an optical coherence tomograph (20) is set up to scan at least a region of a lens (53) of an eye (50) and to generate scan values, and in which a detection unit (30) is set up to generate, on the basis of the scan values, diagnostic data that correspond to light-reflecting structures in the scanned region of the eye (50) and that derive from a plane of the eye (50) that corresponds to an object plane of the surgical microscope (10).

Abstract: A transillumination device (150) for a microscope (100) comprises a flat panel light source (151), a diaphragm arrangement (152) arranged behind the flat panel light source (151) in the radiating direction (AR) that comprises two diaphragm elements movable relative to one another, at least one of the two diaphragm elements having a cutout, the two diaphragm elements defining, together with the at least one cutout, a diaphragm opening, wherein the dimensions of the diaphragm opening in two mutually perpendicular directions are determined by the position of the diaphragm elements relative to one another.

Abstract: A microscope stand (11) is disclosed, including at least one pivot support (12), a mount (22) attached to a first end (15) of the pivot support (12), and a C-slide displacement assembly (112). The pivot support (12) is held to a stand interface (14) by a parallel guide mechanism (116), which allows the pivot support (12) to perform a circular motion in a vertical plane. The parallel guide mechanism (116) is formed by a cross-lever linkage which is rotatable about a cross-lever axis (115) extending centrally between and parallel to the support axis (113) of the pivot support (12) and the pivot axis (114) of the C-slide displacement assembly (112) and which is connected to both the stand interface (14) and the pivot support (12) in such a way that it transmits its own pivotal state simultaneously and equally to the stand interface (14) and to the pivot support (12).

Abstract: A method for calibrating a microscope apparatus (1) having a variable optical magnification system (13) and a detector device (12) is disclosed. First, a calibrating mode is performed, wherein an image (50) of an object (10) is captured at a known reference magnification value, two characteristic reference points (32a, 32b) are determined in the image, a reference distance (34) between the two reference points is determined, and a correlation is determined between the reference distance and the reference magnification value. Later, a measuring mode is implemented, in which a current image (51) of the object (10) is captured at a second magnification value, the two characteristic reference points (52a, 52b) are identified therein, a current distance (54) between the current reference points is determined, and the second magnification value is determined from the current distance (54) based on the correlation between the reference distance (34) and the reference magnification value.

Abstract: The invention relates to a stand (10) for holding at least one medical device (W1 to W3), which encompasses a stand foot (6) having multiple casters (16) for displacement of the stand (10). The stand (10) has a sensor unit (22) for ascertaining a displacement motion of the stand (10), a drive unit (18) for driving at least one of the casters (16), and a control unit (20) for controlling the drive unit (18). The control unit (20) applies control to the drive unit (18) in such a way that the latter assistively drives the at least one caster (16) only when the sensor unit (22) detects a displacement motion of the stand (10).