Patent application number | Description | Published |
20080310030 | Microscope Objective - The invention is directed to an objective, particularly for telescope-type stereomicroscopes. The objective comprises two lens groups, a first lens group and a second lens group. The first lens group, which faces the object plane, has a positive refractive power and comprises a plurality of lenses of which at least two form a cemented component. The second lens group, which is on the image side, has a negative refractive power and comprises a collecting cemented component and a diverging lens. The objective is characterized in that the following conditions B | 12-18-2008 |
20090052020 | Stereoscopic microscope with high numerical aperture - The invention is directed to a telescope-type stereomicroscope which is outfitted with an objective and two magnification changers which are arranged downstream of the objective. The invention provides a telescope-type stereomicroscope in which the light coming from an object that is being examined enters the objective, two light bundles of the light re-exiting from the objective which are oriented parallel to one another enter the magnification changers, the optical axes of the magnification changers are arranged at a fixed distance B from one another, each magnification changer has an entrance pupil for the light bundle associated with it, which entrance pupil has a diameter D | 02-26-2009 |
20090109447 | Microscope and Microscope Microexamination Procedure Method for the Measurement of the Surface Profile of an Object - The invention provides a microscope for measuring the surface profile of an object, including (1) an illumination module which directs illumination radiation with different wavelengths to different surface portions of the object in such a way that a predetermined object intersection length range is illuminated for every portion, and (2) a detection module which detects sample radiation of every portion successively in time. Wherein the detection module directs the sample radiation into a detection beam path via a scanner and confocally images another wavelength of the sample radiation in a plane for every intersection length to be detected. The detection module also detects the intensity of the confocally imaged sample radiation in a wavelength-dependent manner and derives therefrom the position of the corresponding surface portion of the object. Wherein the detection module has a color module arranged between the scanner and the plane, through which the sample radiation passes. | 04-30-2009 |
20120002274 | MICROSCOPE COMPRISING MULTIPLE OPTICAL SYSTEMS IN THE IMAGING BEAM PATH - A microscope comprising multiple optical systems in the imaging beam path and at least one subassembly, the optical effect of which in relation to the imaging beam path can be modified by controlling the subassembly, e.g. a group of lenses or a diaphragm that can be moved in the direction of the optical axis, a diaphragm having a variable aperture, a digital zoom device, a shutter, or a focusing device. The microscope includes a control unit which is designed to generate control signals for the subassembly in a first mode of operation to regulate or control the functional parameters exclusively of the imaging optical system with which the subassembly is associated, and additionally in a second mode of operation to regulate or control the functional parameters of the entire optical system of the microscope. | 01-05-2012 |
20120218629 | MICROSCOPE WITH MULTISPECTRAL ILLUMINATION OF AN OBJECT - The disclosure provides a family of microscopes with components or discrete compact devices for illuminating an object with radiation of various spectral ranges suitable for multichannel fluorescence microscopy, so that an object is sequentially illuminated with different excitation spectra of particular fluorescent dyes. According to certain embodiments: several independent light-radiating surfaces are configured to radiate at different spectral ranges along an optical axis perpendicular to a plane defined by the surfaces and are spaced apart from each other, an optical illuminating system consisting of optical components, through which an illuminating ray path is directed at the object, wherein the surfaces are laterally offset from the optical axis of the optical illuminating system, and a deflecting mechanism configured for the sequential application of light coming from the light-radiating surfaces, so that as the direction changes, light enters the optical illuminating system and any lateral offset of the light-radiating surfaces is compensated. | 08-30-2012 |
20140043464 | COORDINATE MEASURING MACHINE FOR DETERMINING SPATIAL COORDINATES ON A MEASUREMENT OBJECT - A coordinate measuring machine has a workpiece support for holding a measurement object, and a measuring head displaceable relative to the workpiece support. An evaluation and control unit determines geometric properties on the measurement object depending on the position of the measuring head relative to the workpiece support and on sensor data from an optical sensor carried on the measuring head. The optical sensor includes a camera and a lens assembly having a lens body, which forms a light-entry opening and a light-exit opening with an interface for connecting the camera. The lens assembly comprises a number of lens elements arranged in the lens body. A separate cover glass is arranged in the region of the light-entry opening, and sits in front of the lens elements as a first transparent component. Preferably, the lens elements are corrected depending on optical characteristics of the cover glass. | 02-13-2014 |
20140043469 | CHROMATIC SENSOR AND METHOD - An apparatus for inspecting a measurement object, comprising a workpiece support for supporting the measurement object, and a measuring head carrying an optical sensor. The measuring head and the workpiece support are movable relative to one another. The optical sensor has an objective and a camera for capturing an image of the measurement object along an imaging beam path. The objective has a light entrance opening and a light exit opening, a diaphragm and a multitude of lens-element groups arranged in the objective between the light entrance opening and the light exit opening along a longitudinal axis of the objective. At least two lens-element groups are displaceable parallel to the longitudinal axis. The apparatus also has an illumination device for illuminating the measurement object along an illumination beam path, and a chromatic assembly that can selectively be introduced into the illumination beam path and/or the imaging beam path. | 02-13-2014 |
20140043470 | COORDINATE MEASURING MACHINE AND METHOD FOR DETERMINING SPATIAL COORDINATES ON A MEASUREMENT OBJECT - A coordinate measuring machine has a workpiece support for holding a measurement object and a measuring head which can be displaced relative to the workpiece support. The measuring head carries an optical sensor. An evaluation and control unit is configured to determine spatial coordinates on the measurement object depending on a position of the measuring head relative to the workpiece support and depending on sensor data from the optical sensor. The optical sensor includes a lens assembly and a camera. The lens assembly comprises at least four separate lens-element groups. Three of these separate lens-element groups can be displaced along the optical axis of the lens assembly. A first lens-element group is arranged fixed in the region of the light-entry opening of the lens assembly. The coordinate measuring machine with the above-described lens assembly allows individual variation of magnification, focusing and resolution. | 02-13-2014 |
20140168403 | DIGITAL MICROSCOPE SYSTEM - A digital microscope system, having one or several objectives, a tube lens system, a digital image recording device, a stand, a holder for a specimen and an illuminating apparatus, and optionally at least one magnification changer. One or several objectives, the tube lens system, the digital image recording device and the illuminating apparatus are integrated into a compact optical assembly, and the optical assembly is joinable to the stand in several versions that differ with regard to the spatial position and orientation of the optical assembly relative to the stand and to the specimen. The spatial position and orientation of the optical assembly relative to the stand and to the specimen may correspond, in a first version of the joining, to an upright microscope configuration and, in a second version of the joining, to an inverted microscope configuration. | 06-19-2014 |
20140168763 | VARIABLE IMAGING SYSTEM WITH AN OBJECTIVE OF FIXED FOCAL LENGTH - A variable imaging system which, starting from the object end, includes an objective of fixed focal length, at least one afocal zoom system, and a tube lens system. An afocal system of fixed magnification is arranged on the beam path between the objective and the afocal zoom system. The system includes means for axial displacement of the afocal system relative to the objective and to the zoom system, such that the position of the common back focal point of objective and afocal system is always set to the position of the entrance pupil of the zoom system, thus ensuring that object imaging is telecentric. The imaging system is suitable for use in microscopes. The invention can also be used to advantage in other optical systems employing tube lens systems of fixed or variable focal length. | 06-19-2014 |
20140313312 | DIGITAL MICROSCOPE AND METHOD FOR OPTIMIZING THE WORK PROCESS IN A DIGITAL MICROSCOPE - The invention relates to a digital microscope and to a method for optimizing a work process in such a digital microscope. The digital microscope comprises according to the invention at least one first monitoring sensor for observing a sample ( | 10-23-2014 |
20140313589 | TELECENTRIC MODULAR ZOOM SYSTEM - The invention relates to a telecentric modular zoom system for mapping an object plane on a sensor, in particular in a digital transmitted light microscope or incident light microscope having interchangeable lenses, comprising a fixed tube lens unit (LG | 10-23-2014 |
20150035965 | METHOD FOR CALIBRATING A DIGITAL OPTICAL IMAGING SYSTEM HAVING A ZOOM SYSTEM, METHOD FOR CORRECTING ABERRATIONS IN A DIGITAL OPTICAL IMAGING SYSTEM HAVING A ZOOM SYSTEM, AND DIGITAL OPTICAL IMAGING SYSTEM - The invention relates to a method for calibrating a digital optical imaging system, comprising at least one motorized or coded zoom system and an image sensor, to a method for correcting aberrations in such an imaging system, and to an optical imaging system which is configured to carry out the methods according to the invention. During the calibration method, a reference object is recorded in various zoom settings and the image is corrected pixel-wise with digital-optical means using a previously determined model. To this end, distortion correction coefficients and image stability correction coefficients are ascertained. The real total magnification of the system is ascertained from the corrected image. The model ascertained in the calibration process also serves for correcting aberrations during operation of the imaging system. | 02-05-2015 |
20150036027 | METHOD FOR CALIBRATING A DIGITAL OPTICAL INSTRUMENT AND DIGITAL OPTICAL INSTRUMENT - The invention relates to a method for calibrating an optical instrument which comprises at least a motorized zoom system, an objective, an image sensor and an image processing unit. The method comprises the following steps: establishing calibration data D | 02-05-2015 |