Abstract: In an automatic microscope, there is the task to satisfy the demand for an economical, compact structure, especially a miniaturization as an essential aspect. The automatic microscope contains an optical system having the following: an illumination field (1) which is at least approximately arranged in the aperture diaphragm plane (ABE) of a condenser (2) and is used for the illumination of the object; an imaging optic (4); and, an image-providing sensor (5) arranged in the image plane of the imaging optic.

Abstract: The invention relates to an illuminating device for microscopes, wherein the light source has, in particular, a white light illumination having total daylight spectrum and/or an excitation light source for fluorescent colors. The inventive illuminating device for a microscope consists of surface or spatially arranged light sources, which are connected to a control unit for generating any desired illuminating patterns and illuminating spectrums, and an illuminating optic to image these illuminating patterns on the object to be examined. The light sources consist of LEDs (11) which excite at least one luminescence color (14) which is adapted to the wavelength which is emitted by the LEDs (11). The LEDs (11) are arranged concentrically to the optical axis of the illuminating device, preferably, in or in the vicinity of the aperture diaphragm plane.

Abstract: A microscope for observing an object selectably using the bright-field transmitted light contrast procedure or the incident-light fluorescence contrast procedure. During the bright-field transmitted light contrast procedure, an illumination beam path is directed from a bright-field light source to the object and an imaging beam path is directed from the object through the microscope objective into the microscope tube, which includes a fluorescence unit that includes a fluorescence excitation light source, an illumination optical system, a filter set having at least one excitation filter and at least one emission filter, as well as a beamsplitter. The fluorescence unit is mounted movably, so that in a first end position of movement the beamsplitter and the emission filter are out of the imaging beam path of the microscope and in a second end position of movement they are in the imaging beam path between the microscope objective and the microscope tube.

Abstract: An illumination device for microscopes is detachably connected to the microscope and has at least one unconventional illumination source such as an LED, laser or the like. The microscope has an operating control for adjusting the brightness of the illumination, and the brightness of the unconventional illumination source is adjusted by means of this operating control.

Abstract: A method and a device are provided for the immersion and for the cleaning of the front lens of microscope objectives in fully automatic microscope systems, in particular inverted microscopes, for the examination of biological and/or chemical samples by which, besides an automatic immersion process, an automatic cleaning of the front lens of the microscope objective is achieved at the same time at the conclusion of the immersion process. In a method in which water is preferably used as immersion liquid, the immersion liquid is provided at the same time as a cleaning liquid for the automatic cleaning of a front lens of a microscope objective at the conclusion of the immersion process. The device according to the invention for implementing the method comprises a receiving vessel which can be placed on the front lens of the microscope objective.

Abstract: The object in an automatic microscope and a method for true-color image reproduction in automatic microscopes is to provide a monitor image which corresponds to the optical impression of an eyepiece image with respect to color and contrast. According to the invention, the spectral distribution of a light source which can be controlled with respect to brightness and/or color temperature is determined upon initial startup, and the intensity of spectral components is associated with control parameters for the light source. Measurements of the spectral distribution of the light source when operating the microscope and of the ratio of the intensity of spectral components to the control parameters which is determined upon initial startup are used for the regulated control of the light source.

Abstract: The present invention relates to a rivet setting device having an electric drive motor, at lease one rivet setting means driven by drive motor, at least one rechargeable battery for supplying power to the drive motor, and a circuit for controlling the power supply to the drive motor.

Abstract: The present invention relates to a rivet setting device having an electric drive motor, a rivet setting means in a crank drive for driving the rivet setting means by the drive motor, wherein the crank drive assumes a rest position in one of its dead-center positions and, starting from its rest position, can be rotated by at least one complete rotation for performing a rivet setting operation of the rivet setting means. In order to simplify the construction of such a rivet setting device, the drive motor, the crank drive and the rivet setting means are in permanent operative communication according to the invention and a control means is provided for deactivating the drive motor when the crank drive is in its rest position after the rivet setting operation has been carried out.