Abstract: A light-emitting unit, comprising a substrate and a light-emitting device, which is situated on the substrate (2) and is designed to emit a laser beam. A swiveling light-deflecting device is situated on the substrate. A capping device is situated on the substrate and covers the light-emitting device and the light-deflecting device, the capping device having a first cap section and a transparent second cap section. The first cap section is designed to redirect the laser beam emitted by the light-emitting device onto the light-deflecting device. The light-deflecting device is designed to deflect the redirected laser beam in such a way that deflected laser beam is able to exit through second cap section.

Abstract: A device for ascertaining the orientation of a drill relative to a plane, the device being capable of being connected to the drill, the device having a laser distance measuring unit by which, from a prespecified position relative to the plane, a first distance to a first point in the plane and a second distance to a second point in the plane can be measured, and having an evaluation unit that is configured such that on the basis of the first distance and the second distance the orientation of the device relative to the plane can be ascertained.

Abstract: A light-emitting unit, comprising a substrate and a light-emitting device, which is situated on the substrate (2) and is designed to emit a laser beam. A swiveling light-deflecting device is situated on the substrate. A capping device is situated on the substrate and covers the light-emitting device and the light-deflecting device, the capping device having a first cap section and a transparent second cap section. The first cap section is designed to redirect the laser beam emitted by the light-emitting device onto the light-deflecting device. The light-deflecting device is designed to deflect the redirected laser beam in such a way that deflected laser beam is able to exit through second cap section.

Abstract: A device for ascertaining the orientation of a drill relative to a plane, the device being capable of being connected to the drill, the device having a laser distance measuring unit by which, from a prespecified position relative to the plane, a first distance to a first point in the plane and a second distance to a second point in the plane can be measured, and having an evaluation unit that is configured such that on the basis of the first distance and the second distance the orientation of the device relative to the plane can be ascertained.

Abstract: The present invention relates to a semiconductor laser having at least one quantum film in which electron hole pairs can be recombined, having at least two barrier layers between which respectively one of the at least one quantum films is disposed adjacently to these, directly in a planar manner or via respectively one intermediate film, and also having a pump device, the barrier layers having or consisting of AlzGa1-zAsySb1-y, with y greater than or equal to zero and less than or equal to one and z less than or equal to one and greater than 0.4, and/or having or consisting of AlzGauInvAsySb1-y, with z+u+v=1 and z greater than 0.25, the electron hole pairs being able to be produced directly in the quantum film with the pump device.

Abstract: The present invention relates to a semiconductor laser having at least one quantum film in which electron hole pairs can be recombined, having at least two barrier layers between which respectively one of the at least one quantum films is disposed adjacently to these, directly in a planar manner or via respectively one intermediate film, and also having a pump device, the barrier layers having or consisting of AlzGa1-zAsySbi-y, with y greater than or equal to zero and less than or equal to one and z less than or equal to one and greater than 0.4, and/or having or consisting of AlzGauInvAsySb1-y, with z+u+v=1 and z greater than 0.25, the electron hole pairs being able to be produced directly in the quantum film with the pump device.