Abstract: A device for projecting a laser beam onto a workpiece includes at least one first optical element, at least one second optical element, and at least one third optical element. The at least one first optical element is configured to project the laser beam onto the at least one second, in particular diffractive, optical element. The at least one second optical element is configured to convert an intensity profile of the laser beam. The at least one third optical element is configured to project the laser beam onto the workpiece. The device is configured such that a diameter of the laser beam on the workpiece can be varied while maintaining the intensity profile with a stationary workpiece.

Abstract: A device for monitoring a mounting state of a workpiece in a machine tool. The device comprises an illumination arrangement for illuminating the working space in a normal mode of operation; at least one workpiece sensor, which is configured to detect an actual state of the workpiece in the workpiece mount in the working space, and to provide a monitoring signal which describes the actual state of the workpiece; and a control unit. The illumination arrangement is also operable in at least one signal mode of operation. The control unit is configured to determine, based on the monitoring signal, whether the workpiece is in a first mounting state or a second mounting state, and, based thereon, to selectively operate the illumination arrangement in the signal mode of operation to provide visual information in the working space for visualizing the mounting state of the workpiece.

Abstract: A device for monitoring a mounting state of a workpiece in a machine tool. The device comprises an illumination arrangement for illuminating the working space in a normal mode of operation; at least one workpiece sensor, which is configured to detect an actual state of the workpiece in the workpiece mount in the working space, and to provide a monitoring signal which describes the actual state of the workpiece; and a control unit. The illumination arrangement is also operable in at least one signal mode of operation. The control unit is configured to determine, based on the monitoring signal, whether the workpiece is in a first mounting state or a second mounting state, and, based thereon, to selectively operate the illumination arrangement in the signal mode of operation to provide visual information in the working space for visualizing the mounting state of the workpiece.

Abstract: The invention relates to a motor vehicle (1) having a device (2) for airborne sound acoustic sensing of the surroundings of the motor vehicle (1), wherein the device (2) comprises at least one microphone (3), which is integrated in a body part (4) or in an attachment part (5) of the motor vehicle (1). According to the invention, at least one opening (6) is formed in the body component (4) or in the attachment part (5) for the entry of sound waves and at least one film (7) or membrane is arranged in the region of the opening (6).

Abstract: In a method for manufacturing a connecting contact for an electrode of an electrochemical store, the electrode having a first material, a contact element made of a second material is provided, the contact element having a section coated using the first material, and the coated section is electrically and mechanically connected to the electrode to manufacture the connecting contact.

Abstract: A device for electromechanically assisted roller burnishing (EMRB) may comprise: a roller burnishing tool with exactly one current-leading roller burnishing element for burnishing a workpiece, wherein the roller burnishing element represents a first electrical contact element for electrically contacting first location of the workpiece, and a second electrical contact element for electrically contacting second location of the workpiece; wherein the first and the second electrical contact elements can be positioned at a settable spatial distance to one another, so that on moving the roller burnishing element on the workpiece, a current path in the workpiece between the first and the second contact elements is always a constant length.

Abstract: A device for projecting a laser beam onto a workpiece includes at least one first optical element, at least one second optical element, and at least one third optical element. The at least one first optical element is configured to project the laser beam onto the at least one second, in particular diffractive, optical element. The at least one second optical element is configured to convert an intensity profile of the laser beam. The at least one third optical element is configured to project the laser beam onto the workpiece. The device is configured such that a diameter of the laser beam on the workpiece can be varied while maintaining the intensity profile with a stationary workpiece.

Abstract: A method for producing an energy cell, in particular an energy storage cell or battery, having the steps of: arranging a plurality of films of the energy cell at a processing location, and cutting the plurality of films in one operation, wherein the cutting of the films is carried out by a laser beam, and wherein the laser beam is guided in a liquid. Also an apparatus for producing an energy cell.

Abstract: The invention relates to a device and method for electromechanically roller burnishing a surface of a workpiece, in which precisely one current-guiding roller burnishing element for roller burnishing and one separate electrical contact element are used and, as the roller burnishing element is moved on the workpiece surface, said electrical contact element is guided thereafter such that a current path of a constant length is directed through the workpiece as roller burnishing takes place. The invention allows, in a cost-effective manner, a high surface quality to be achieved as well as a precisely-adjustable microstructural alteration to the upper layers of the workpiece.

Abstract: The present invention relates to a powder-coating apparatus for coating objects, comprising an application device which is designed to apply powder coating to regions of the object that are to be coated; and comprising an irradiation device which has at least one electromagnetic radiation source, which is designed to direct electromagnetic radiation onto areas of the object that are to be coated with powder coating and which is designed to thus cross-link the powder coating onto the coated regions. The present invention further relates to a powder-coating method for coating objects by means of a powder-coating apparatus according to the invention.

Abstract: An image augmenting window and method of operation. An image augmenting window has at least one selectably transmissive internally focused intermediate image lens with a first portion that receives light and focuses it into a focused image on an internal focal plane. An output optical structure refracts the focused image out as a projected image. A selectably transmissive shutter located in the internal focal plane selectably blocks at least a portion of light passing through the lens. At least one controllable light source has a respective light source lens that is separate from and positioned adjacent to a lateral side of a respective selectably transmissive internally focused intermediate image lens and that emits an afocal projection of respective projected light. A controller independently controls each shutter and each controllable light source.

Abstract: A selectably transmissive internally focused intermediate image lens and a lens based optical window include a number of such lenses. Each selectably transmissive internally focused intermediate image lens in a lens based optical window includes a first and second lens portion. The first lens portion receives light and focuses it into a focused image at a focal plane that is coplanar with a second side of the first portion. A second lens portion has an image side adjacent to the second side of the first lens portion and an opposite side opposite the image side. The second lens portion refracts the focused image as an image projected through its rear side. Each lens further includes a selectably transmissive shutter that is located at the internal focal plane and that is controllable to block at least a portion of light passing therethrough.

Abstract: The present disclosure relates to media players, such as portable electronic devices, vehicle audio systems, home stereo systems, etc. In particular, it relates to the management of the sound pressure level generated by portable electronic devices. A method and system for controlling the consumed audio dose of a user of a media player is described. The method comprises the steps of selecting a first frequency range from the total frequency range relevant for the human ear; of determining the audio dose already consumed by the user within the first frequency range; of evaluating the audio dose of a media track within the first frequency range and the already consumed audio dose of the user within the first frequency range; and of controlling the audio dose generated by the media player based on the evaluating step.

Abstract: The invention relates to a method for generating at least one through-hole (3, 4) in a wall of a workpiece (2) bounding a hollow space (12) of the workpiece (2), said method using a laser beam (7) directed onto the wall (9) from the exterior. A paste-like protective agent (13) is thereby introduced into the hollow space of the workpiece (2). The paste-like protective agent (13) is applied in an extension (10) of the laser beam (7) guided through the through-hole (3) in front of a rear wall bounding the hollow space (12). Reliable protection of the rear wall (11) during laser drilling of the through-hole (3) is thereby ensured.

Abstract: An image augmenting window and method of operation. An image augmenting window has at least one selectably transmissive internally focused intermediate image lens with a first portion that receives light and focuses it into a focused image on an internal focal plane. An output optical structure refracts the focused image out as a projected image. A selectably transmissive shutter located in the internal focal plane selectably blocks at least a portion of light passing through the lens. At least one controllable light source has a respective light source lens that is separate from and positioned adjacent to a lateral side of a respective selectably transmissive internally focused intermediate image lens and that emits an afocal projection of respective projected light. A controller independently controls each shutter and each controllable light source.

Abstract: The present document relates to media players, such as portable electronic devices, vehicle audio systems, home stereo systems, etc. In particular, it relates to the management of the sound pressure level generated by portable electronic devices. A method and system for controlling the cumulated audio dose of a user of a media player is described. The method comprises the steps of determining the audio dose already consumed by the user and of selecting one or more media tracks for play back on the media player based on the audio dose of the media track and the already consumed audio dose of the user.

Abstract: In a method for manufacturing a connecting contact for an electrode of an electrochemical store, the electrode having a first material, a contact element made of a second material is provided, the contact element having a section coated using the first material, and the coated section is electrically and mechanically connected to the electrode to manufacture the connecting contact.

Abstract: An image augmenting window and method of operation. An image augmenting window has at least one selectably transmissive internally focused intermediate image lens with a first and rear side opposite one another. Each lens respectively has a first portion that receives light and focuses it into a focused image on an internal focal plane. Each lens also has a projecting output optical structure that refracts the focused image as a projected image exiting the rear side at an exit angle. A selectably transmissive shutter is located in the internal focal plane and is controllable to block at least a portion of light passing through the lens. At least one controllable light source, positioned adjacent to a lateral side of a respective selectably transmissive internally focused intermediate image lens, emits projected light parallel to the exit angle. A controller independently controls each shutter and each controllable light source.

Abstract: A method for producing an energy cell, in particular an energy storage cell or battery, having the steps of: arranging a plurality of films of the energy cell at a processing location, and cutting the plurality of films in one operation, wherein the cutting of the films is carried out by a laser beam, and wherein the laser beam is guided in a liquid. Also an apparatus for producing an energy cell.

Abstract: A selectably transmissive internally focused intermediate image lens and a lens based optical window include a number of such lenses. Each selectably transmissive internally focused intermediate image lens in a lens based optical window includes a first and second lens portion. The first lens portion receives light and focuses it into a focused image at a focal plane that is coplanar with a second side of the first portion. A second lens portion has an image side adjacent to the second side of the first lens portion and an opposite side opposite the image side. The second lens portion refracts the focused image as an image projected through its rear side. Each lens further includes a selectably transmissive shutter that is located at the internal focal plane and that is controllable to block at least a portion of light passing therethrough.