Abstract: The present invention relates to an image conversion module for a microscope, the image conversion module being designed to convert images using an additional function. Said image conversion module initially comprises at least one functional element for implementing the additional function which is used for recording an extended depth of focus, for producing an optical zoom, for measuring spectral properties, the measuring color, for measuring polarization, for measuring wave fronts for measuring material properties and/or for aberration correction. Other components of the image conversion module are at least one image sensor, an optical interface which can be optically coupled to a lens of the microscope, a data interface for transmitting the data provided by the image sensor, and a mechanical interface for mechanically placing the image conversion module on the microscope. The invention also relates to a microscope comprising said type of image conversion module.

Abstract: The invention relates to an apparatus for transmitted light illumination for light microscopes having changing effective entrance pupil of an objective. The apparatus has a light source for emitting an illuminating light beam, and a holding device for holding a sample to be examined, and at least one diaphragm edge for trimming the illuminating light beam bundle, wherein the diaphragm edge is arranged between the holding device and the light source and extends transversely to an optical axis, wherein a beam path of the illuminating light between the diaphragm edge and a sample held by the holding device is free from beam focussing components.

Abstract: The invention relates to an apparatus for transmitted light illumination for light microscopes having changing effective entrance pupil of an objective. The apparatus has a light source for emitting an illuminating light beam, and a holding device for holding a sample to be examined, and at least one diaphragm edge for trimming the illuminating light beam bundle, wherein the diaphragm edge is arranged between the holding device and the light source and extends transversely to an optical axis, wherein a beam path of the illuminating light between the diaphragm edge and a sample held by the holding device is free from beam focussing components.

Abstract: An objective changer having incident-light illumination for light microscopes, including: at least two microscope objectives for examining a specimen, a movable carrier, on which the microscope objectives are mounted, an immovable carrier, which is adapted for mounting on a base body of the microscope, wherein the movable carrier is adapted for defined positioning thereof relatively to the immovable carrier, and at least one illuminating means for illuminating the specimen. The objective changer includes at least one transfer interface for transferring energy for illuminating the specimen is provided on the immovable carrier, at least one energy connector, which is rigidly connected to the movable carrier, is provided for receiving energy to illuminate the specimen, the energy connector is connected to an illuminating means, and by positioning the movable carrier relatively to the immovable carrier, a line engagement can be established between the transfer interface and an energy connector.

Abstract: The invention is directed to a method for equalizing arbitrary parfocal lengths of objectives when focusing stereomicroscopes and macroscopes, including an objective changer (4) equipped with differently parfocalized and/or non-parfocalized objectives (5), and focusing devices for automatic focusing when changing an object or objective. The focusing devices are controlled by control devices according to object and objective changer data and data for the travel path stored previously in a storage device. When changing non-parfocal objectives (5) arranged in an objective changer (4), automatic focusing is carried out. During an objective change, the danger of a collision between objectives (5) arranged in the objective changer (4) and the object or the object carrier (1.

Abstract: The invention relates to an objective changer having incident-light illumination for light microscopes, comprising: at least two microscope objectives for the purpose of examining a specimen, a movable carrier, on which the microscope objectives are mounted, an immovable carrier, which is adapted for mounting on a base body of the microscope, wherein said movable carrier is adapted for defined positioning thereof relatively to said immovable carrier, and at least one illuminating means for illuminating the specimen.

Abstract: A control unit for a microscope, a stereomicroscope, or an industrial image processing machine is described, to which at least three lighting units, e.g. for incident light-bright field illumination, incident light-dark field illumination, and for transmitted light illumination, are connected. Respective lighting units are simultaneously controlled according to user commands, e.g. for interval control to simulate a moving light source. The user commands can be input by function keys and/or a foot switch and/or stored in a memory provided in the control unit. Alternatively or in addition, the control unit can receive command statements from an external computer connected via an interface or control signals from an external camera. The control unit detects temperatures of the lighting units and shuts off a lighting unit or generates a warning signal when its temperature becomes excessive.

Abstract: The subject matter of the invention is a transmitted light bright field illuminating device, in particular for stereomicroscopy, having bright field luminous means which are arranged on a luminous surface and whose directions of emission lie substantially in the direction of the object to be transilluminated, which comprises measures for producing a segmented light field and which includes no beam-focusing and/or beam-deflecting measures.

Abstract: The control unit controls mixed light illumination produced by a number of lighting units, especially for controlling LED lighting units used in microscopy. The lighting units are connected with the control unit and receive control signals from it. Respective parts of at least two of the lighting units are simultaneously controlled according to user commands, for example for interval control to simulate a moving light source or synchronized light sources. The user commands can be directly input by function keys and/or a foot switch and/or stored in a memory device of the control unit. Alternatively or in addition, the control unit can receive command statements from an external computer connected to an interface of the control unit or control signals from an external camera.