Abstract: An optical system includes an illumination module configured to illuminate a sample object with at least one angle-variable illumination geometry. The optical system includes an imaging optical unit configured to produce an imaged representation of the sample object that is illuminated with the at least one angle-variable illumination geometry on a detector. The optical system includes the detector, which is configured to capture at least one image of the sample object based on the imaged representation. The optical system includes a controller configured to determine a result image based on a transfer function and the at least one image. A method includes illuminating a sample object with at least one angle-variable illumination geometry, imaging the sample object on a detector, based on the imaged representation, capturing at least one image of the sample object, and, based on a transfer function and the at least one image, determining a result image.

Abstract: The invention relates to a reflection-reduced contrast imaging method and to a device for generating a reflection-reduced contrast image, preferably from microscopic images, in particular in order to read height progression information of a condition of an object.

Abstract: Traction battery of a motor vehicle includes a battery frame which is assembled from supports. A plurality of battery modules are accommodated in the battery frame and are each composed of a plurality of battery cells which are accommodated in a module housing of the respective battery module. The respective module housing is assembled from side walls and a base wall. The base wall of the respective module housing is designed as a cooling panel for cooling the battery cells. A cover panel is connected to is the battery frame. An underride guard panel is connected to the battery frame.

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 firstly to a method for determining a mechanical deviation on a displacement path of an optical zoom lens (03), in particular on a displacement path of an optical zoom lens (03) of a microscope. The optical zoom lens (03) is arranged in a beam path (01) between an object (19) to be recorded and an electronic image sensor (04). In a first method step, an optical marker is introduced into the beam path (01) at a position of the beam path (01) located between the object (19) to be recorded and the optical zoom lens (03), such that the optical marker passes the optical zoom lens (03) and then is depicted on an image in which a position of the optical marker is detected and determined. This is compared with a reference position of the optical marker in order to determine the mechanical deviation on the displacement path of the optical zoom lens (03).

Abstract: The invention relates to a method of correcting illumination-dependent aberrations in a modular digital microscope comprising a coaxial bright field illumination apparatus, a motor-driven zoom apparatus, an objective, a digital image acquisition unit and an image processing unit. The method according to the invention is based on the use of calibration data, which are preferably stored in the image processing unit as a calibration data record. The calibration data record is established for each combination of objective and zoom and stored in a data memory. The method is integrated into the image processing unit for live-correction or available as software for image post-processing of microscope images. The invention further relates to a digital microscope.

Abstract: For image recording purposes, an object is illuminated at a plurality of illumination angles. A detector captures a plurality of images (41-43) of the object for the plurality of illumination angles. An electronic evaluating device applies an image correction to the plurality of images (41-43), said image correction comprising a rectification (T1, T2, T3), wherein the rectification (T1, T2, T3) depends on the illumination angle used when recording the respective image (41-43). The corrected images (44-46) may be combined.

Abstract: The invention relates to a reflection-reduced contrast imaging method and to a device for generating a reflection-reduced contrast image, preferably from microscopic images, in particular in order to read height progression information of a condition of an object.

Abstract: For image recording purposes, an object is illuminated at a plurality of illumination angles. A detector captures a plurality of images (41-43) of the object for the plurality of illumination angles. An electronic evaluating device applies an image correction to the plurality of images (41-43), said image correction comprising a rectification (T1, T2, T3), wherein the rectification (T1, T2, T3) depends on the illumination angle used when recording the respective image (41-43). The corrected images (44-46) may be combined.

Abstract: The invention relates to a method of correcting illumination-dependent aberrations in a modular digital microscope comprising a coaxial bright field illumination apparatus, a motor-driven zoom apparatus, an objective, a digital image acquisition unit and an image processing unit. The method according to the invention is based on the use of calibration data, which are preferably stored in the image processing unit as a calibration data record. The calibration data record is established for each combination of objective and zoom and stored in a data memory. The method is integrated into the image processing unit for live-correction or available as software for image post-processing of microscope images. The invention further relates to a digital microscope.

Abstract: 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.

Abstract: The invention relates to a reflection correction method for correcting digital microscopic images. Here, the reflection correction method comprises: illuminating (10) an object, the illuminating (10) of the object having at least two illumination patterns (11, 12). Creating (20) an illumination pattern image (21, 22) of the object for each illumination pattern (11, 12). Calculating (60) at least one partial reflection image (61), in each case by means of a combination of corresponding two illumination pattern images (21, 22). Calculating (90) a reflection-corrected image (99) of the object by means of a suitable combination of at least one illumination pattern image (21, 22) and at least one partial reflection image (61). And, in this case, each illumination pattern (11, 12) has at least one active illumination source (111), and each illumination pattern (11, 12) is different from all others. Furthermore, the invention relates to an associated reflection-correcting device (100).

Abstract: 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 DZRef of the zoom system with a reference objective and storing these in an internal memory of the zoom system; establishing calibration data DORef of the objective with a reference zoom system and storing these in an internal memory of the objective; reading the internal memories of the zoom system and of the objective and applying a digital-optical correction of an image acquired by an image sensor with the calibration data DZRef and DORef. The invention moreover relates to an optical instrument, in particular a digital microscope, to which the calibration method according to the invention can be applied.

Abstract: 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.

Abstract: 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 DZRef of the zoom system with a reference objective and storing these in an internal memory of the zoom system; establishing calibration data DORef of the objective with a reference zoom system and storing these in an internal memory of the objective; reading the internal memories of the zoom system and of the objective and applying a digital-optical correction of an image acquired by an image sensor with the calibration data DZRef and DORef. The invention moreover relates to an optical instrument, in particular a digital microscope, to which the calibration method according to the invention can be applied.