Abstract: A detection system serves for X-ray inspection of an object. An imaging optical arrangement serves to image the object in an object plane illuminated by X-rays generated by an X-ray source. The imaging optical arrangement comprises an imaging optics to image a transfer field in a field plane into a detection field in a detection plane. A detection array is arranged at the detection field. An object mount holds the object to be imaged and is movable relative to the X-ray source via an object displacement drive along at least one lateral object displacement direction in the object plane. A shield stop with a transmissive shield stop aperture is arranged in an arrangement plane in a light path and is movable via a shield stop displacement drive in the arrangement plane.

Abstract: An exemplary surgical device includes an element positionable within a shaft having a lumen defined therethrough with the element movable from a stored position to a deployed position in which a larger portion of the element extends out of the distal end of the lumen. The element forming a closed loop which is positioned around the lens while the lens is within a capsular bag. The closed loop is reduced in size to form a cut in the lens.

Abstract: The present invention relates to a charged particle beam system comprising a deflection subsystem configured to deflect a charged particle beam in a deflection direction based on a sum of analog signals generated by separate digital to analog conversion of a first digital signal and a second digital signal. The present invention further relates to a method of configuring the charged particle beam system so that each of a plurality of regions of interest can be scanned by varying only the first digital signal while the second digital signal is held constant at a value associated with the respective region of interest. The present invention further relates to a method of recording a plurality of images of the regions of interest at the premise of reduced interference due to charge accumulation.

Abstract: A microscopy system includes a microscope, a stand configured to mount the microscope and including a drive device configured to move the microscope, a detection device configured to detect a spatial position of a target fastened to a body part or to an instrument, wherein the position detection device includes the target with at least one marker element and an image capture device configured to optically capture the target. The microscopy system further includes at least one control device configured to operate the microscopy system according to the detected position of the target, wherein the position detection device is configured to determine the position of the target by evaluating a two-dimensional image of the image capture device. In addition, a method for operating the microscopy system is provided.

Abstract: A spectacle lens for at least one eye of a user, a method for producing a spectacle lens, and a computer program product having executable instructions for performing the method for producing the spectacle lens are disclosed. The spectacle lens has a permanent marking which is or contains a diffractive structure, wherein a diffractive pattern generated by illumination of the diffractive structure is configured to be invisible upon a first kind of illumination and configured to be visible only upon a second kind of illumination. The permanent markings on the spectacle lens are, on one hand, invisible to the user or to a spectator looking at the user wearing the spectacle lens without utilizing specially selected optical aids but, on the other hand, enables continued control of the spectacle lens in front of the eye of the user by an optician or a specifically designated optical sensor.

Abstract: A microlithographic projection exposure mirror has a mirror substrate (12, 32), a reflection layer system (21, 41) for reflecting electromagnetic radiation that is incident on the mirror's optical effective surface, and at least one piezoelectric layer (16, 36), which is arranged between the mirror substrate and the reflection layer system and to which an electric field for producing a locally variable deformation is applied by a first electrode arrangement situated on the side of the piezoelectric layer facing the reflection layer system, and by a second electrode arrangement situated on the side of the piezoelectric layer facing the mirror substrate. One of the electrode arrangements is assigned a mediator layer (17, 37, 51, 52, 53, 71) for setting an at least regionally continuous profile of the electrical potential along the respective electrode arrangement. The mediator layer has at least two mutually electrically insulated regions (17a, 17b, 17c, . . . ; 37a, 37b, 37c, . . . ).

Abstract: A 3D calibration body for spatial calibration of an optical imaging system includes a transparent body and calibration marks embedded in a volume of the transparent body. At least some of the calibration marks are selectively activatable and deactivatable, wherein an activated calibration mark is visible in the visible spectral range and a deactivated calibration mark is not visible in the visible spectral range.

Abstract: A medical device for removing lens tissue from inside a capsular bag of an eye including a cam assembly operatively coupled to a vacuum generation source positioned within the housing. A first portion is operatively coupled to the vacuum generation source and a second portion is operatively coupled to the first portion and to the shaft. The first portion is capable of rotating about an axis to cause the vacuum generation source to generate vacuum through the lumen. The second portion is capable of rotating about the axis with the first portion to cause the shaft to oscillate. A first degree of actuation of a trigger causes the vacuum generation source to generate vacuum within the lumen of the shaft, and a second degree of actuation of the trigger causes the shaft to oscillate as the second portion rotates. Related systems, devices, and methods are provided.

Abstract: A metrology system serves for examining objects with EUV measurement light. An illumination optical unit serves for guiding the EUV measurement light towards the object to be examined. The illumination optical unit has an illumination optical unit stop for prescribing a measurement light intensity distribution in an illumination pupil in a pupil plane of the illumination optical unit. An output coupling mirror serves for coupling a part of the measurement light out of an illumination beam path of the illumination optical unit. The output coupling mirror has a mirror surface which is used to couple out measurement light and has an aspect ratio of a greatest mirror surface extent A longitudinally with respect to a mirror surface longitudinal dimension (x) to a smallest mirror surface extent B longitudinally with respect to a mirror surface transverse dimension (y) perpendicular to the mirror surface longitudinal dimension (x). The aspect ratio A/B is greater than 1.1.

Abstract: Computer implemented methods and devices for determining dimensions or distances of head features are provided. The method includes identifying a plurality of features in an image of a head of a person. A real dimension of at least one target feature of the plurality of features or a real distance between at least one target feature of the plurality features and a camera device used for capturing the image is estimated based on probability distributions for real dimensions of at least one feature of the plurality of features and a pixel dimension of the at least one feature of the plurality of features.

Abstract: An optics arrangement for flexible multi-color illumination for a light microscope includes an acousto-optical tunable filter (“AOTF”). The AOTF is set up to diffract two light components from incident illumination light into different order-of-diffraction directions. The two light components differ in their wavelengths and polarizations. Alternatively, an electro-optical modulator (“EOM”) can be used, with which two temporally successive light components of different wavelengths are set to different polarization directions. A polarization beam splitter separates the two light components of different wavelengths and polarizations into reflection light, which is reflected at the polarization beam splitter, and transmission light, which is transmitted at the polarization beam splitter. A light structuring apparatus imprints different structures onto the transmission light and the reflection light.

Abstract: An inkjet method for producing a spectacle lens and fluids that can be used in an inkjet method for producing a spectacle lens are disclosed. The inkjet method includes the following steps: a) providing a substrate to be printed on, b) applying to the substrate to be printed on from step a) at least two volume elements applied adjacently and/or adjoining one another, c) transferring the at least two volume elements applied adjacently and/or adjoining one another from step b) into at least one volume composite, d) transferring the at least one volume composite from step c) into at least one homogeneous volume composite, e) transferring the at least one homogeneous volume composite from step d) into at least one final volume composite.

Abstract: A computer implemented method of determining a numerical representation of a spectacle lens is provided, in which a numerically represented working spectacle lens is optimized by ray tracing using pencils of rays along different viewing directions of an eye to obtain an optimized numerical representation. The principal rays of the pencils of rays each pass different ray passing points forming points of a vertex surface. The principal rays extend along a viewing direction related to the respective ray passing point. The locations of the ray passing points are determined by surface points of a non-spherical apex surface representing the locations of the apex of the cornea when the eye rotates. A fixed distance is added to the apex surface at the respective surface points in a direction that corresponds to the viewing direction of the eye when the apex of the cornea is located at that surface point.

Abstract: The present application relates to an apparatus for a scanning probe microscope, said apparatus having: (a) at least one first measuring probe having at least one first cantilever, the free end of which has a first measuring tip; (b) at least one first reflective area arranged in the region of the free end of the at least one first cantilever and embodied to reflect at least two light beams in different directions; and (c) at least two first interferometers embodied to use the at least two light beams reflected by the at least one first reflective area to determine the position of the first measuring tip.

Abstract: A facet mirror for an illumination optical unit of a projection exposure apparatus has a large number of displaceable individual facets with a facet main body and a reflection surface arranged on it. At least some of the individual facets have a displacement range such that they come into contact with a stop surface in one or more displacement positions.

Abstract: Centration parameters for fitting spectacle lenses to a predetermined spectacle frame and to the head of a subject are determined with a computer-implemented method. At least two calibrated images, recorded from different recording directions, of the head of the subject wearing the spectacle frame are provided, wherein geometric parameters are established by geometric position determination. The geometric parameters describe the position of the eyes and the geometry of the spectacle frame, and the centration parameters are calculated from the geometric parameters. Further, a three-dimensional model for the spectacle lenses, which are to be received in the spectacle frame, is fitted to the geometry of the geometric parameters that describe the geometry of the spectacle frame.

Abstract: The invention relates to an injector assembly comprising a folding chamber which is designed to receive an intraocular lens having a lens body and two haptics, and comprising a holder, a folding wedge which is attached to the holder and is designed to be introduced into the folding chamber in an insertion direction via a folding chamber opening and to thereby fold the intraocular lens, and two sliders which are each designed to shift one of the two haptics onto the lens body via a shifting of the respective slider out of an initial position and into an end position, wherein at least one of the two sliders has a stop which is designed to abut a component attached to the holder in the initial position of the at least one slider, whereby a movement of the component is blocked and the folding wedge is thereby not permitted to fold the intraocular lens, and said stop is designed to permit the movement of the component in the end position of the at least one slider and the folding wedge is thereby permitted to fold

Abstract: The invention relates to techniques for material testing of optical test pieces, for example of lenses. Angle-variable illumination, using a suitable illumination module, and/or angle-variable detection are carried out in order to create a digital contrast. The digital contrast can be, for example, a digital phase contrast. A defect detection algorithm for automated material testing based on a result image with digital contrast can be used. For example, an artificial neural network can be used.

Abstract: An object receiving container may receive an object which is examinable, analyzable and/or processable at cryo-temperatures. An object holding system may comprise an object receiving container. A beam apparatus or an apparatus for processing an object may comprise an object receiving container or an object holding system. An object may be examined, analyzed and/or processed using an object receiving container or an object holding system. The object receiving container may comprise a first container unit, a cavity for receiving the object, a second container unit, which is able to be brought into a first position and/or into a second position relative to the first container unit, and at least one fastening device which is arranged at the first container unit or at the second container unit for arranging the object receiving container at a holding device.

Abstract: A progressive addition lens contains a plurality of microlenses for providing simultaneous myopic defocus. The microlenses are superimposed on a power variation surface of the lens, which includes a designated distance portion in the upper section of the lens adapted for distance vision and a fitting cross; a designated near portion located in the lower section of the lens, the near portion including a near reference point having a near dioptric power adapted for near vision; and a designated intermediate corridor extending between the designated distance portion and near portions. Microlenses are excluded from all areas of the surface located below a notional line extending from nasal to temporal limits of the lens at a vertical coordinate above the near reference point where the vertical coordinate lies at a distance above the near reference point with the distance being in a range between 1.5 mm and 3 mm.