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| Number | Title | Issue Date |
| 6243197 | Lighting device for a microscope A description is given of an illuminating device for a microscope (1), having a light source (2), an illuminating optical system (3) and an LCD (5) arranged in the illuminating beam path (4). The illuminating light is directed onto the object (6) from the... | 06/05/2001 |
| 6023381 | Microscope objective having a correction holder A microscope objective having a plurality of lens assembly holders, one of which is designed as a correction holder (F4) for matching to different cover slip thicknesses and can be moved axially along the optical axis of the objective for position changin... | 02/08/2000 |
| 5872651 | Condenser system for microscopes An exchangeable condenser system for a phase-contrast illuminating system (12) for microscopes has a plurality of different light rings (5), arranged on a nosepiece plate (4), assigned to the condenser optical system (6). The condenser optical system (6) ... | 02/16/1999 |
| 5793526 | Gear unit for focusing microscopes A gear unit (1) for focusing microscopes and having coarse adjustment, fine adjustment and extra-fine adjustment is described, in which, for the purpose of focusing, the object stage (5) is moved via a toothed gear (6). Coaxially arranged control knobs (7... | 08/11/1998 |
| 5781337 | Object holder for thin slides An object holder (7) for thin slides (4) is described, in which the object holder (7) has a baseplate (8) as well as a lower lying supporting surface (9) as a receptacle for the slide (4). Arranged on the baseplate (8) is a spring steel (10) which has a k... | 07/14/1998 |
| 5729445 | Regulated power supply unit with an electronic transformer A regulated power supply unit with an electronic transformer having an input for a transformer power supply voltage on the primary side, an output for an operating a.c. voltage with a higher-frequency component on the secondary side, and a control device ... | 03/17/1998 |
| 5708526 | Process and device for contrasting objects to be microscopically examined A contrasting process and device allows a relief contrast to be obtained for microscopic amplitude and/or phase objects. The input aperture (L') of the condenser (2) is partially and asymmetrically masked at the same time as an image (S') of a sector diap... | 01/13/1998 |
| 5703715 | Device for stabilizing the focus of a microscope A device for stabilizing the focus in a microscope (1) is described which has an objective (2) and a specimen stage (3), constructed in a movable fashion, for the purpose of setting the focus. The specimen stage (3) is constructed such that it can be move... | 12/30/1997 |
| 5684627 | Microscope with a multi-functional adjustment knob A microscope (1) is described which has an adjustment knob (2) arranged on the microscope (1) and an encoder (6) assigned to the adjustment knob (2). The encoder (6) is connected to a control device (3). The control device (3) is assigned positioning moto... | 11/04/1997 |
| 5684625 | Illumination device for microscopes The invention provides a switchable bright-field transmitted-light illumination device for microscopes which provides for in each case two objectives of different apertures in both switch positions a simple automatic illumination arrangement without adjus... | 11/04/1997 |
| 5684624 | Lens change-over device with centerable reception rings A change-over device has a plurality of centerable reception rings (10), inserted into a sliding bearing (9), for optical components. A spring element having a plurality of tongues (16) split in the longitudinal direction is provided in such a way that in... | 11/04/1997 |
| 5625492 | Color compensation filter An interference filter having 17 coatings of alternating high and low index materials is located on the illumination path of an optical device and provides correction for green color distortion on the observation path and correction for blue color distort... | 04/29/1997 |
| 5602708 | Process and device for electronically monitoring the overload on electric motor drives A process and a circuit arrangement are proposed for electronically monitoring the overload on electric motor drives and in the case of which process and circuit arrangement speed is .monitored in addition to the known methods for real power monitoring. T... | 02/11/1997 |
| 5585964 | Modular microscope system A modular microscope system includes a plurality of stackable housing modules each having a plurality of inwardly pointing protuberances provided with one or more precision stop surfaces thereon for removably mounting and positioning a plurality of preali... | 12/17/1996 |
| 5572360 | Microscope stand foot with a carrier for bracing a cylindrical tube of an illumination device in a non-displaceable manner The microscope stand foot serves to accommodate an illumination device having optical components and having an aperture diaphragm and field diaphragm. The latter are assembled in a cylindrical tube held by a carrier, the tube being able to be fastened in ... | 11/05/1996 |
| 5566019 | Bright-field transmitted-light lighting device for microscopes A bright-field transmitted-light lighting device for a microscope is described, for the homogeneous illumination of the lighting field diaphragm (LF) at large fields and small apertures and for the uniform illumination of the aperture diaphragm (AP) at sm... | 10/15/1996 |
| 5561562 | Microscope objective with a correcting mount A microscope objective adjustable for different cover slip thicknesses includes an outer ring rotatable about an optical axis of the objective, an intermediate mount carrier having a plurality of inner lens mounts fixed thereto, and an inner correcting le... | 10/01/1996 |
| 5559631 | Method and apparatus for controlling the brightness and/or color temperature of a microscope illumination system Methods are described for the control of the brightness in a manner independent of color and for the control of the color temperature in a manner independent of brightness, of the illumination light for a microscope device. An apparatus for carrying out t... | 09/24/1996 |
| 5557453 | Microscope that displays superimposed data A microscope includes a mount 18 secured to an eyepiece tube 10 to superimpose image data upon the microscope image. The image data is projected and reflected into the intermediate image plane using a receiving unit 27 to hold the image data on a slide 29... | 09/17/1996 |
| 5555070 | Method and device for controlling exposure for fluorescence microphotography In photographic recordings made by fluorescence microscopy, it is possible for a bleaching out of the preparation to occur, associated with a loss of fluorescence intensity. This so-called "fading" demands an exposure time correction. Where there is a dec... | 09/10/1996 |
| 5539573 | Universal folding condenser for microscopes A universal folding condenser (1) with a support plate (4), which is fastened on the microscope and has an arm (4') angled off through 90°, is described. Arranged in the support plate (4) is a fixed lens (5). Above the support plate (4) there is provided... | 07/23/1996 |
| 5521755 | Epi-illumination system for microscopes An epi-illumination system for microscopes is described, which contains an epi-illumination module (18) that consists of a Smith-splitter with an integrated telescope system (14). The telescope system (14) corrects in the sense of "Shift-Optics" differenc... | 05/28/1996 |
| 5453829 | Procedure and device for measurement of exposure times in optical devices with microscopic illustration path A method and device for measurement of exposure times in optical devices are disclosed. Specifically, a measuring diaphragm plate and a mask plate are associated with a measurement path and a projection path of the optical device and include a plurality o... | 09/26/1995 |
| 5440422 | Method for manufacturing ultraviolet microscope dry objectives and microscope objectives manufactured in accordance with this method A method for the manufacture of quasi-monochromatic microscope dry objectives for a wavelength range from 190 to 360 nanometers proceeds from a basic objective with a specified number of lenses. The basic objective is corrected for a specified wavelength ... | 08/08/1995 |
| 5362330 | Process for the emission-free, in particular CFC-free, cleaning of precision optics or optical element groups An emission-free process is described for cleaning precision optics and components of precision optics including the steps of first pretreating a surface of precision optics or a surface of components of precision optics by cleaning the surface in a clean... | 11/08/1994 |
| 5315080 | Limit switching apparatus with defined overtravel for specimen protection on microscopes with motorized focusing drive A limit switching apparatus with defined overtravel for specimen-objective protection on microscopes having a motorized focusing drive. A stored focus position or position of the specimen stage can be overtraveled by a fixed amount. The maximum travel pat... | 05/24/1994 |
| 5260632 | Position control system A positioning control for linearly displacing an object (31) has a direct current motor (1) and a gear (2,21) for converting rotary into linear motion, a current supply (4) of current pulses having given frequency, amplitude and duration; a pole reverser;... | 11/09/1993 |
