Abstract: An illumination device for a piece of optical observation equipment is provided. The illumination device is equipped with at least one illumination beam path that leads from an illumination light source to an observation object and serves to generate an illuminated field on the observation object by illumination light, and a projection device for projecting a structure onto the observation object. The projection device acts on the illumination light in such a way that the structure is projected onto the observation object within the illuminated field with the aid of the illumination light that generates the illuminated field. A method is provided for identifying on an observation object an object region of said observation object that has been imaged on an image sensor of a piece of optical observation equipment. In the method, a structure is projected onto the observation object.

Abstract: A power semiconductor module includes a first and second insulating substrate, which is arranged parallel to and at a distance from the first insulating substrate. The first insulating substrate and the second insulating substrate each include an insulating layer, an inner metallization layer, and an outer metallization layer. The power semiconductor module also includes a first cooling device, which is arranged thermally conductively on the outer metallization layer of the first insulating substrate, a second cooling device, which is arranged thermally conductively on the outer metallization layer of the second insulating substrate. The power semiconductor module also includes a power semiconductor, arranged between the first insulating substrate and the second insulating substrate.

Abstract: The invention relates to a use of a blend comprising an amphiphilic amine, and an amphiphilic acid for increasing the electric conductivity of a lubricant based on a hydrocarbon oil. The invention further relates to a method for increasing the electric conductivity of a lubricant based on a hydrocarbon oil comprising the step of contacting the hydrocarbon oil with a blend comprising the amphiphilic amine, and the an amphiphilic acid; and to a lubricant based on a hydrocarbon oil comprising a blend comprising the amphiphilic amine which is a compound of formula (A1) and the amphiphilic acid which is selected from compounds (B1), (B3), (B4), (B5), fatty acids, or alkylbenzene sulfonic acids.

Abstract: The disclosure relates to an optical system and to a method for operating an optical system, wherein the optical system includes at least one carrier having at least one optical element, a movement bearing element for supporting the carrier during a movement, at least one first bearing element and at least one further bearing element for statically supporting the carrier, wherein the carrier includes corresponding bearing elements for providing static support, wherein the optical system includes a first and a further end stop element, wherein the carrier is supported movably between the end stop elements, wherein the first end stop element has or forms the first bearing element for providing static support and the further end stop element has or forms the further bearing element for providing static support, wherein the bearing elements define the stop poses of the carrier with repetition accuracy.

Abstract: A crash management system (1, 1?, 1?) for a front part of a vehicle, oriented in a local referential, having a longitudinal direction X a transverse direction Y perpendicular to the longitudinal direction X and a vertical direction Z perpendicular to the plane defined by said directions X and Y, comprising an assembly (2, 2?, 2?) of bumper beams with at least a first bumper beam (3, 3?, 3?) and a second bumper beam (4, 4?, 4?), oriented in said transverse direction Y, said first bumper beam (3, 3?, 3?) and second bumper beam (4, 4?, 4?) being vertically spaced wherein said first bumper beam (3, 3?, 3?) is located above said second bumper beam (4, 4?, 4?), optionally comprising at least one crash box (5, 6) connected to at least a bumper beam (3, 3?, 3?, 4, 4?, 4?), and comprising at least a connecting element (100, 200,300, 400, 500) characterized in that said connecting element (100, 200,300, 400, 500) connects said first bumper beam (3, 3?, 3?) and said second bumper beam (4, 4?, 4?), and wherein said conne

Abstract: A contactless visualization system for a microscope for eye surgery includes an ophthalmic loupe positionable in front of a patient's eye and supplies a real and vertically and laterally inverted image of the fundus in an intermediate image plane observable with the microscope. The loupe includes first and second lens elements. When positioned in front of the eye, the first lens element is closer to the eye than the second. A wall extending from the first to the second lens element has a free end in a form of a mount which holds the second lens element. The wall has a passage opening formed therein for removing liquid possibly present in an intermediate space between the first lens element and the second lens element. The first lens element has a boundary surface facing the second lens element. The passage opening includes a lower edge bordering on the boundary surface of the first lens element.

Abstract: A crash management system for a motor vehicle, the crash management system having a cross member for the connection to a body shell structure of the motor vehicle, the cross member comprising a front flange, a rear flange and two cross walls connecting the front flange and the rear flange for the formation of a closed cross section, and the crash management system having two reinforcement areas in the area of the rear flange which extend at a distance from one another in the longitudinal direction of the cross member, which are disposed parallel to one another and which are disposed above and below a center plane extending at least substantially parallel to the cross walls, the reinforcement areas projecting in the direction of the front flange, the two reinforcement areas being formed by longitudinal ribs at least indirectly connected to the rear flange.

Abstract: A liquid-cooled power electronics unit includes a planar circuit board body having conductor tracks, a wet side with a wet space for carrying a dielectric cooling liquid, and a fluidically, separated dry side, wherein at least two high-voltage power semiconductors are arranged on the circuit board body on the wet side within the wet space, the high-voltage power semiconductors being cooled by the cooling liquid, and an electronic low-voltage circuit is arranged on the dry side of the circuit board body.

Abstract: A crash box (3) comprising a hollow profile (38) extending along a longitudinal direction (X) and having a crush length (LCB), said hollow profile (38) having at least two chambers (4) characterized in that it comprises at least a deformable element (7, 7?, 7?) contained into at least one chamber (4) contributing to the energy absorption capability of said crash box (3).

Abstract: A method ascertains a drive clearance after a software update for a set of controllers of a vehicle. The method includes determining a first deviation between the first target state and the first actual state of the software updated. If the first deviation indicates, then a second deviation between the second target state of the set of second target states and the second actual state of the set of second actual states for a first controller is determined. The first controller is linked to a class from a specified controller classification, and one or more properties of controllers are linked to each class of the specified controller classes. If a second deviation indicates, and if a property of the ascertained class of the first controller indicates that the first controller can be downgraded, then the first controller is downgraded after the software update.

Abstract: A contactless visualization system for a microscope for eye surgery includes an ophthalmic loupe positionable in front of a patient's eye and supplies a real and vertically and laterally inverted image of the fundus in an intermediate image plane observable by the microscope. The loupe includes a first and a second lens element. Positioned in front of the eye, the first lens element is closer to the eye than the second. A wall extending from the first to the second lens element has a free end in a form of a mount which holds the second lens element. The wall has a passage opening formed therein for removing liquid possibly present in an intermediate space between the first and second lens element. The first lens element has a boundary surface facing the second. The passage opening includes a lower edge bordering on the boundary surface of the first lens element.

Abstract: A power semiconductor module includes a first and second insulating substrate, which is arranged parallel to and at a distance from the first insulating substrate. The first insulating substrate and the second insulating substrate each include an insulating layer, an inner metallization layer, and an outer metallization layer. The power semiconductor module also includes a first cooling device, which is arranged thermally conductively on the outer metallization layer of the first insulating substrate, a second cooling device, which is arranged thermally conductively on the outer metallization layer of the second insulating substrate. The power semiconductor module also includes a power semiconductor, arranged between the first insulating substrate and the second insulating substrate.

Abstract: A method ascertains a drive clearance after a software update for a set of controllers of a vehicle. The method includes determining a first deviation between the first target state and the first actual state of the software updated. If the first deviation indicates, then a second deviation between the second target state of the set of second target states and the second actual state of the set of second actual states for a first controller is determined. The first controller is linked to a class from a specified controller classification, and one or more properties of controllers are linked to each class of the specified controller classes. If a second deviation indicates, and if a property of the ascertained class of the first controller indicates that the first controller can be downgraded, then the first controller is downgraded after the software update.

Abstract: A crash management system (1, 1?, 1?) for a front part of a vehicle, oriented in a local referential, having a longitudinal direction X a transverse direction Y perpendicular to the longitudinal direction X and a vertical direction Z perpendicular to the plane defined by said directions X and Y, comprising an assembly (2, 2?, 2?) of bumper beams with at least a first bumper beam (3, 3?, 3?) and a second bumper beam (4, 4?, 4?), oriented in said transverse direction Y, said first bumper beam (3, 3?, 3?) and second bumper beam (4, 4?, 4?) being vertically spaced wherein said first bumper beam (3, 3?, 3?) is located above said second bumper beam (4, 4?, 4?), optionally comprising at least one crash box (5, 6) connected to at least a bumper beam (3, 3?, 3?, 4, 4?, 4?), and comprising at least a connecting element (100, 200,300, 400, 500) characterized in that said connecting element (100, 200,300, 400, 500) connects said first bumper beam (3, 3?, 3?) and said second bumper beam (4, 4?, 4?), and wherein said conne

Abstract: A surgical microscope for generating an image of an object region includes an eyepiece and an objective conjointly defining a viewing beam path, an image capturing device and a beam path switching device for out-coupling image information. The switching device is switchable between a first switching state wherein light in the viewing beam path is split into a first component along a first beam path to the eyepiece at an intensity IT1 and a second component along a second beam path to the image capturing device at an intensity IT2 and a second switching state wherein the light in the viewing beam path is deflected into the second beam path to the image capturing device at an intensity IU. The switching device includes a beam splitter movable in and out of the viewing beam path and a deflecting element movable into and out of the viewing beam path.

Abstract: The disclosure relates to an optical system and to a method for operating an optical system, wherein the optical system includes at least one carrier having at least one optical element, a movement bearing element for supporting the carrier during a movement, at least one first bearing element and at least one further bearing element for statically supporting the carrier, wherein the carrier includes corresponding bearing elements for providing static support, wherein the optical system includes a first and a further end stop element, wherein the carrier is supported movably between the end stop elements, wherein the first end stop element has or forms the first bearing element for providing static support and the further end stop element has or forms the further bearing element for providing static support, wherein the bearing elements define the stop poses of the carrier with repetition accuracy.

Abstract: A crash box (3) comprising a hollow profile (38) extending along a longitudinal direction (X) and having a crush length (LCB), said hollow profile (38) having at least two chambers (4) characterized in that it comprises at least a deformable element (7, 7?, 7?) contained into at least one chamber (4) contributing to the energy absorption capability of said crash box (3).

Abstract: A mount for an optical apparatus having an image recording unit and an image rendering unit includes a first securing device for the recording unit, a second securing device for the rendering unit, and a connecting rail interconnecting the securing devices. The connecting rail is arranged so as to be displaceable in the y-direction in relation to the second securing device via a linear actuator. The first securing device includes a rotation device arranged so as to be rotatable about an axis of rotation extending in the x-direction. The mount includes a controller which is configured to displace the connecting rail in the y-direction in relation to the second securing device via the actuator when the first securing device is rotated about the tilt axis such that the distance between the focal point and the second securing device is kept constant within a certain interval.

Abstract: The invention relates to a bumper (10) for a motor vehicle, with a cross beam element (30) exhibiting a back side (22) designed to be fastened to the motor vehicle with at least one fastening device (25), preferably in the form of a crash box, and a front side (21) lying opposite the back side (22), wherein the cross beam element (30) has at least one hollow chamber (36, 37) with a closed cross section, and with a reinforcing element (40; 40a), which extends over part of the length of the cross beam element (30) and is joined with the cross beam element (30). The invention provides that the cross beam element (30) be designed together with the reinforcing element (40; 40a) as a single-piece extruded part.

Abstract: A mount for an optical apparatus having an image recording unit and an image rendering unit includes a first securing device for the recording unit, a second securing device for the rendering unit, and a connecting rail interconnecting the securing devices. The connecting rail is arranged so as to be displaceable in the y-direction in relation to the second securing device via a linear actuator. The first securing device includes a rotation device arranged so as to be rotatable about an axis of rotation extending in the x-direction. The mount includes a controller which is configured to displace the connecting rail in the y-direction in relation to the second securing device via the actuator when the first securing device is rotated about the tilt axis such that the distance between the focal point and the second securing device is kept constant within a certain interval.