Abstract: The invention relates to a device (100) for an additive manufacture. The device (100) comprises a laser device (110) for machining material using a laser beam (112), said laser device (110) being designed to deflect the laser beam (112) onto a machining region of a workpiece (10); at least one supply device (130) for a supply material, said supply device being designed to supply the supply material to the machining region; and an interferometer (140) which is designed to measure a distance to the workpiece (10) by means of an optical measuring beam (142).

Abstract: The invention relates to a device (100) for an additive manufacture. The device (100) comprises a laser device (110) for machining material using a laser beam (112), said laser device (110) being designed to deflect the laser beam (112) onto a machining region of a workpiece (10); at least one supply device (130) for a supply material, said supply device being designed to supply the supply material to the machining region; and an interferometer (140) which is designed to measure a distance to the workpiece (10) by means of an optical measuring beam (142).

Abstract: A method for producing a workpiece, includes providing a substrate having a predetermined surface structure; coating the surface structure with a coating material, wherein the coating material is resistant to a production temperature of an additive production method; the additive production of a material for the workpiece on the coated surface structure using the additive production method such that the coated surface structure defines a base surface of the workpiece to be produced, and the detachment of the substrate. A workpiece is produced by the described method.

Abstract: A device to extract material of a material reservoir has at least one guide tube with internal space and with an inner wall surrounding the internal space; at least one sled that can implement a sled translation movement in the inner space along a longitudinal alignment of the guide tube; and at least one collection unit with collection surface to collect the material. The collection unit and the sled are coupled to one another such that the sled translation movement of the sled leads to a collection translation movement of the collection surface of the collection unit, and such that the collection surface can be inserted into the material reservoir and be withdrawn from the material reservoir. A rotation mechanism that is operated manually or automatically can be provided with which a wire, which acts as a collection device, can be displaced in vivo over a length of 1 mm to up to 2 cm within a venous cannula.

Abstract: A base for a lamp, in particular a high-pressure discharge lamp, has an accommodating area for electronic components of the lamp and a chamber for the purpose of accommodating at least one further electronic component, for example a transformer, an electrical contact element being arranged in the base and connecting a voltage output of the transformer to a power supply line of the lamp via a connecting region. The connecting region is electrically insulated from the accommodating area of the base by a contact cover.