Abstract: A device for outcoupling a portion of the radiation of an observation beam path of a binocular eyepiece for documentation or co-observation that is freely selectable at any time. For the outcoupling, a rotatable supporting unit, the axis of rotation of which is parallel to the axes of the observation beam paths, is arranged in the housing having the binocular eyepiece. Three optical elements are arranged on this supporting unit such that an outer and the middle optical element and, after rotation of the supporting unit, the middle and the other outer optical element are each located in one of the observation beam paths. Here, the two outer optical elements have a beam-splitting effect and outcouple a portion of the observation radiation into a common documentation beam path.

Abstract: An intraocular lens system for implantation in an eye is provided. The intraocular lens system includes a ciliary body implant having a passive ciliary signal element, the ciliary body implant being implantable in the eye such that the ciliary signal element provides a ciliary signal in response to a movement of the ciliary muscle of the eye. The intraocular lens system also includes an intraocular lens having a sensor element for receiving the ciliary signal. The ciliary body implant and the intraocular lens are formed separately from each other and the intraocular system is configured to control a refractive effect of the intraocular lens that is dependent on the ciliary signal received from the sensor element.

Abstract: A device for outcoupling a portion of the radiation of an observation beam path of a binocular eyepiece for documentation or co-observation that is freely selectable at any time. For the outcoupling, a rotatable supporting unit, the axis of rotation of which is parallel to the axes of the observation beam paths, is arranged in the housing having the binocular eyepiece. Three optical elements are arranged on this supporting unit such that an outer and the middle optical element and, after rotation of the supporting unit, the middle and the other outer optical element are each located in one of the observation beam paths. Here, the two outer optical elements have a beam-splitting effect and outcouple a portion of the observation radiation into a common documentation beam path.

Abstract: Methods and apparatuses for fundus imaging are presented that use sequential selective illumination patterns to suppress unwanted reflections, scattering and haze from various optical components of a fundus-viewing instrument. This is particularly the case with those unwanted reflections produced by the objective lens contained within said instrument.

Abstract: Methods and apparatuses for fundus imaging are presented that use sequential selective illumination patterns to suppress unwanted reflections, scattering and haze from various optical components of a fundus-viewing instrument. This is particularly the case with those unwanted reflections produced by the objective lens contained within said instrument.

Abstract: A fundus camera for the recording of high-resolution color images of the fundus of non-dark-adapted eyes, and without the use of a mydriatic. The fundus camera has a strip-shaped pupil division, and includes a coherent or incoherent illumination source with illumination optics, a deflection mirror and an ophthalmoscope lens for illuminating the eye, detection optics and a detector for detecting the light reflected by the eye, and a control and evaluation unit. The deflection mirror has a strip shape, and the spatially resolving detector can be activated and read out in sectors. The control and evaluation unit connects the data read out in sectors in the form of a bright image from the detector and produce a resulting fundus image. The fundus camera records images of the fundus when the eyes are not dark-adapted for this purpose and no mydriatic has been used.

Abstract: A fundus camera for the recording of high-resolution colour images of the fundus of non-dark-adapted eyes, and without the use of a mydriatic. The fundus camera has a strip-shaped pupil division, and includes a coherent or incoherent illumination source with illumination optics, a deflection mirror and an ophthalmoscope lens for illuminating the eye, detection optics and a detector for detecting the light reflected by the eye, and a control and evaluation unit. The deflection mirror has a strip shape, and the spatially resolving detector can be activated and read out in sectors. The control and evaluation unit connects the data read out in sectors in the form of a bright image from the detector and produce a resulting fundus image. The fundus camera records images of the fundus when the eyes are not dark-adapted for this purpose and no mydriatic has been used.

Abstract: Imaging optics for optical devices, with which reflections of the illumination light, which is guided through the same optical elements as the observation light, are kept from reaching the observation pupil of the imaging beam path. The non-reflective imaging optics include at least two refractive optical elements, which are utilized for illumination as well as observation. The at least two refractive optical elements are designed approximately wedge-shaped and are tilted at a random azimuth angle of at least 5° and/or are positioned off-center in the beam path to block out the single reflections of the illumination, occurring at the optical system surfaces, for the observation. The imaging optics are for optical devices, particularly in ophthalmology thought the invention is applicable to other ophthalmological devices as well as to optical devices outside of this field.

Abstract: Imaging optics for optical devices, with which reflections of the illumination light, which is guided through the same optical elements as the observation light, are kept from reaching the observation pupil of the imaging beam path. The non-reflective imaging optics include at least two refractive optical elements, which are utilized for illumination as well as observation. The at least two refractive optical elements are designed approximately wedge-shaped and are tilted at a random azimuth angle of at least 5° and/or are positioned off-center in the beam path to block out the single reflections of the illumination, occurring at the optical system surfaces, for the observation. The imaging optics are for optical devices, particularly in ophthalmology thought the invention is applicable to other ophthalmological devices as well as to optical devices outside of this field.

Abstract: A method is used to wind a toroidal core with a wire obtained from a magazine having a ring shape. The method includes winding the wire onto the toroidal core in a fixed winding plane, rotating the toroidal core during winding, the rotating being about an axis that is perpendicular to a plane of the ring shape of the magazine, and holding the toroidal core using a gripper that moves with the toroidal core during winding.

Abstract: An apparatus for the laser processing of workpieces with shortened processing time. Two laser units that can be simultaneously operated are directed towards each other. Workpieces, for example printed circuit boards, are moved between the two laser units such that the two sides of the workpieces are simultaneously processed. As a result the processing time is considerably shortened.

Abstract: The invention relates to a method of winding a toroidal core (1) with a wire (2), wherein the winding of the toroidal core (1) takes place in a fixed winding plane (3), and where the toroidal core (1) is held by a gripper (4) that moves with it, and is rotated about an axis that is perpendicular to the plane of the ring. The method according to the invention makes it possible to wind even very small toroidal cores having an outside diameter <4 mm.

Abstract: A method and arrangement for calibrating a laser processing machine for processing workpieces. The present invention ensures a fast and reproducible method and arrangement for calibrating a laser processing machine by measuring a position of a predetermined test pattern on a test plate while taking into account any imaging errors caused by the deflection unit.

Abstract: Toolbox having closable cover with first cable reel and second cable reel being rotatably mounted in an interior of the toolbox, and first electrical cable, including a first connection end with an electrical plug, wound on said first reel and second electrical cable, including a second connection end with an electrical coupling, wound on said second reel. The first electrical cable and the second electrical cable are electrically coupled to each other. First cable wind-up arrangement is associated with the first cable reel, and second cable wind-up arrangement is associated with said second cable reel.

Abstract: A workpiece, designed as a printed circuit board for example, can be moved by means of a transport device under a laser unit in such a way that a region to be machined of the workpiece passes into the deflecting region of the laser beam. The workpiece is set between clamping jaws to a vertical position in which the laser beam is focused exactly on that surface of the workpiece which is to be machined. As a result, the machining accuracy can be considerably increased.

Abstract: The fluid power cylinder possesses a housing, wherein a piston space is defined to accommodate a piston. In or on the housing a pressurized fluid receiver is arranged which possesses at least one receiver chamber connected with the piston space and which is supplied from a pressurized fluid source. Such a fluid power cylinder is characterized by reliable operation and good response behavior if it is run at a considerable distance from the pressurized fluid source.

Abstract: The invention provides a piston and cylinder unit comprising a piston adapted to be displaced in the axial direction, a piston rod arranged coaxially and connected with the piston on at least one axial face thereof and which extends through an associated cylinder end cover in a sealing and sliding manner. The section of the piston rod outside the piston are provided with load attachment means. The piston rod is tubular and defines a continuous bore extending essentially from one end of such rod to the other end thereof in the axial direction. The bore is provided at least at its end sections with a female threaded section. The piston end of the piston rod is provided with a threaded part connected with the piston and in the opposite external end the male threaded section of a connecting part may be screwed with is adapted to be coupled with a load attachment means to be operated by said piston and cylinder unit.

Abstract: A gear rack is made up of rack segments arranged end-to-end supported by and extending along face conveyor for meshing engagement with a gear of a drive to propel a mining machine along a mine face. The teeth of each rack segment extend between longitudinal cheek sections. A thicker one of the cheek sections has a downward extending shoulder at each of opposite ends to engage in a cavity of a bracket and secured therein for limited movement by a fastener pin. A wall section of the bracket extends against a bearing surface formed by a cavity in the underside of the gear tooth at the end portion of the rack segment. The width of the wall section corresponds to the width of the bearing surface.

Abstract: The invention relates to a connecting piece for connecting tubular members such as hoses, pipes, or other structural parts, carrying fluids with each other. A clamping part is available which has two half shell-shaped clamping halves with one clamping surface curved in accordance with the outer circumference of the end of the tubular member to be inserted. In their plug-in position the clamping halves are arranged at a distance to each other which permits insertion of the plug-in end of a tubular member. In their clamping position they enclose non-displaceably the plug-in end of the pipe, the hose or similar and they are simultaneously fixed on a contact part of the connecting piece.

Abstract: A rack device for advancing a drum cutter mining machine used in underground mining operations. The rack is comprised of a plurality of rack sections positioned end-to-end wherein the discrete sections are held together by brackets which connect two adjacent rack sections. The bracket contains a bracket wall which has a top surface positioned directly beneath the end pins of the discrete rack sections. Force exerted on the rack pins during the translation of the drum cutting mining machine bears upon the bracket wall thereby diminishing damage to the rack structure caused by tilting forces created during translation of the mining machine.