Abstract: To provide an illumination beam (5) which is essentially homogeneous in cross-section, in particular for a laser scanning microscope (15), an illumination device is used which provides an original beam which is essentially rotationally symmetric in cross-section and is incident at a converting unit which then transmits the desired illumination beam (5) and which comprises, for this purpose, an aspherical, convex mirror (1) which is more strongly curved in the area of the point of incidence of the original beam (3) than in the areas removed from the point of incidence.

Abstract: The invention is directed to a microscope objective with axially adjustable correction mounts and is applicable in connection with different cover slips and/or different immersion liquids and/or at different work temperatures. In the microscope objective according to the invention, helical springs which are uniformly distributed along the circumference and act in axial direction are fixed by a first ring which has pins in axial direction on which the helical springs are arranged. The pins engage in bore holes of a second ring. The bore holes are at least deep enough to ensure the required spring path. The two rings with the helical springs arranged therebetween on the pins form a spring retainer which ensures a movement of the parts without play and/or in a springing manner. In principle, the proposed solution can be substituted for all pressure springs in microscope objectives and other objectives and can overcome the disadvantages of using individual springs.

Abstract: A method of optical detection of characteristic quantities of an illuminated specimen comprising detecting a signal that is backscattered, reflected and/or fluoresced and/or transmitted from the specimen by a spatially resolving detector wherein radiation coming from the specimen is imaged on the detector, shifting the position of the radiation which is measured in a spatially resolved manner relative to the detector and determining intermediate values by an algorithm from the signals measured in different shifts for purposes of increasing the spatial resolution of the detector. An arrangement for performing the method is also disclosed.

Abstract: Process for the observation of at least one sample region with a light raster microscope by a relative movement between the illumination light and sample via first scanning means along at least one scanning axis essentially perpendicular to the illumination axis wherein the illumination light illuminates the sample in parallel at several points or regions and several points or regions are detected simultaneously wherein at an angle to the plane of the relative movement, preferably perpendicular thereto, second scanning means are moved and an image acquisition takes place by the movement of the first and second scanning means being coupled and a three-dimensional sampling movement being done by the illumination of the sample wherein the second scanning means are coupled to the movement of the first scanning means in such a manner that straight and/or curved lines and/or plane and/or curved surfaces are scanned which are extended along at least one scanning direction of the first scanning means as well as along

Abstract: A microscope objective has axially adjustable correction mounts for adapting to different parameters influencing the imaging quality. The axial adjustment of the correction mounts relative to a stationary barrel is realized by an adjusting ring arranged on the outer side of the barrel by means of a bolt or screw which is arranged in the respective correction mount, is directed radial to the optical axis of the objective and engages in through-openings of threaded rings. The objective has at least three correction mounts which are adjustable in direction of the optical axis of the objective by at least one adjusting ring without additional rotation around the optical axis of the objective.

Abstract: What is described is a microscope comprising at least one rotary knob, which is rotatable about an axis of rotation, for operation of actuating elements and comprising a plurality of buttons for control of electrical components, said buttons being arranged in the region of the rotary knob, wherein the buttons comprise operating surfaces, which are located substantially parallel to the axis of rotation and on the outline of the rotary knob, as viewed along the axis of rotation.

Abstract: A trinocular tube for stereo microscopes with an inclined binocular eyepiece whose angle can be adjusted and with two stereo microscope beam paths. The trinocular tube includes, in the beam paths, a first tube unit which can be connected to the body of the stereo microscope. A connection piece for cameras is arranged at the first tube unit. A second tube unit is arranged at the first tube unit so as to be swivelable around an axis and which is connected to an eyepiece tube unit that is swivelable around the optical axis of the respective beam path. The trinocular tube also includes a roof mirror, a deflecting element and an optical axis that is swivelable around a second swiveling axis.

Abstract: The invention is directed to an optical system with reduced chromatic aberration, particularly for use in microscopes for imaging the light source in the aperture diaphragm of a condenser. According to the invention, an adapter assembly is associated with a collector assembly. The adapter assembly has an apochromaticizing action and substantially reduces the chromatic aberration of the collector assembly and accordingly achieves the high aperture required on the lamp side for achieving high efficiency.

Abstract: An optical microscope can be converted by the user quickly with a few movements of the hand so that it can be used as an upright variant or as an inverted variant. The required optical elements are accommodated in components that can be mechanically separated from one another and variously combined. The optical system is calculated in such a way that an upright microscope with vertical illumination or transmitted illumination or an inverted microscope with vertical illumination or transmitted illumination results when the components are combined in the required manner by interfaces provided for this purpose.

Abstract: Light scanning microscope with an at least single-dimensional light distribution for grid-shaped illumination of a sample in a locally limited grid field and detector means for recording sample light as well as a sample table that moves in at least one direction, whereby in a first process step an illumination of the sample, detection of sample light and data recording of the detection is carried out during a movement of the sample table in at least a first direction over the dimensions of the grid field and the recording of the respective table position is assigned to the data recording.

Abstract: Laser Scanning Microscope with a non-descanned detection and/or observation beam path, wherein a beam splitter is provided for the separation of the illumination and the detection beam paths. In the direction of the detection, at least one optical arrangement is provided for the regular transmission of the detected light, whereby between the beam splitter and the optical system, an additional optical arrangement is provided for reducing the diameter of the bundle of the beam to be imaged.

Abstract: An arrangement in the illumination beam path of a laser scanning microscope, comprising a mirror which can be introduced into the beam path for coupling in at least one additional wavelength, and a method for the operation of a laser scanning microscope with a mirror which can be swiveled in rapidly for coupling at least one additional wavelength into the illumination beam path, wherein the swiveling process is synchronized with the illumination control by a control unit in such a way that at least one additional wavelength is coupled into the illumination beam path when the mirror is swiveled out.

Abstract: A laser scanning microscope comprises at least one selectively switchable micro-mirror arrangement (DMD) in the illumination beam path and/or detection beam path which is used for the wavelength selection of dispersively divided illumination and/or object light such as reflection, fluorescence.

Abstract: The invention is directed to an afocal zoom system, particularly for use in microscopes, comprising at least four optical assemblies, two of which assemblies are movable relative to one another and to the rest of the assemblies for the purpose of changing the magnification. It is the object of the invention to develop an afocal zoom system which enables a relatively small structural size for a microscope also in combination with a suitable drive mechanism. This object is met by an afocal zoom system of the type described above in which every adjustable magnification can be achieved by a displacing movement of the two movable optical assemblies in the same direction.

Abstract: A method and arrangement for the depth-resolved optical detection of a specimen with an illumination light distribution of at least one wavelength generated on or in a specimen and detection particularly of the light that is influenced due to interaction with the specimen, particularly fluorescent light and/or reflected light and/or luminescent light and/or scattered and/or transmitted light, wherein the illumination light has a modulation in at least one spatial direction and the detection light which is modulated like the illumination light is spatially split into two components having a phase shift relative to one another, the components are measured separately and an optical section image of the specimen and/or of part of the specimen is calculated from them.

Abstract: A microscope, especially a microscope that is used for inspection in semiconductor manufacture is disclosed. The microscope comprises a pulsed laser for the purpose of illumination, preferably in the UV range. At least one rotating diffusion disk is disposed downstream of the laser so as to homogenize the illumination. Preferably, two rotating diffusion disks of opposite rotational sense are disposed in the illumination beam path either directly or indirectly one behind the other.

Abstract: An optical arrangement with telecentric beam region for imaging objects, preferably a microscope, comprises in a main beam path at least one infinity-imaging objective and at least one eyepiece with an eyepiece intermediate image plane and a tube lens of suitable focal length which is arranged between the latter at a fixed distance from the objective. At least one optical element in the form of a beam splitter module or beam splitters for laterally splitting off at least a first partial beam path is provided in the space between the objective and the tube lens in which the telecentric beam path is located. A tube lens is located at a suitable distance from the objective in each of these first partial beam paths. At least a second partial beam path is branched off from at least one of these first partial beam paths and a tube lens is located at a suitable distance from the objective in each of these second partial beam paths.

Abstract: An arrangement tilts the illumination carrier on light microscopes of the inverse type which include a microscope stand on which an illumination carrier having a light source is attached. The arrangement for tilting the illumination carrier (2) having a light source (3) includes an electric motor (10) with which the tilt movement of the illumination carrier (2) can be controlled in such a manner that the motor-controlled tilting of the illumination carrier (2) takes place manually utilizing an actuating element or can be triggered automatically and is stepwise adjustable. A device for damping the tilt movement is provided.

Abstract: A microscope with optical components which are provided in the illumination beam path and/or observation beam path and/or detection beam path for exerting different spectral influences on at least one of the beam paths mentioned above. An arrangement comprising a light source emitting a plurality of wavelengths and at least one spectral sensor detecting the light of this light source after interacting with a component are provided, preferably outside these beam paths. The interaction is carried out by transmission or reflection of the light by the component. The detected values of the spectral sensor are compared to pre-stored values and correlation with pre-stored values is advantageously carried out in a storage. The correlation is carried out together with a position signal of a component changer. The detected values are stored separately and together with a position signal of a component changer when there is no correlation with pre-stored values.

Abstract: An optical arrangement for stereoscopic viewing of objects which is outfitted with an imaging system and with at least one lens group with a fixed focal length which is arranged between the imaging system and a viewed object for changing the imaging scale. This is achieved in that an adjusting device is provided for changing the position of the lens group in the direction of the optical axis and, accordingly, for changing the distance c between the lens group and a reference edge of the imaging system. This makes it possible to adjust different magnification ?? by actuating the adjusting device or changing the distance c and, therefore, to generate virtual intermediate images of objects located at various distances within a working range in the imaging plane of the stationary system. Accordingly, very advantageous applications are possible in restoration work, in dental engineering, and so on, in which the enhanced use value achieved by the invention is desired.