Abstract: An optical observation instrument according to the invention, in particular a surgical microscope or exoscope, comprises an optics unit with an objective arrangement and at least one electronic image recorder, wherein the optics unit has a first stereo channel with a first beam path and a second stereo channel with a second beam path for recording a stereo image of an object field with the at least one electronic image recorder and wherein the first and the second beam path extend through the objective arrangement.

Abstract: A drivetrain for a hybrid vehicle has at least one ground engaging element, a torque transmission shaft operatively connected thereto, an electric motor, a transmission having an input shaft and an output shaft, and an internal combustion engine operatively connected to the input shaft of the transmission. The electric motor and the output shaft are operatively connected to the torque transmission shaft. The transmission has a neutral shift position, a first shift position, and at least one higher shift position including a highest shift position. The transmission is capable of shifting directly from the neutral shift position to the first shift position and directly from the neutral shift position to the highest shift position. A vehicle having the drivetrain is also disclosed. A method of starting an internal combustion engine in a hybrid vehicle is also disclosed.

Abstract: An optoelectronic semiconductor component comprising: a main body (100) having a recess; (102), a first optoelectronic element (104) and a second optoelectronic element; (106) a surface structured element; (110) and a filling compound (112) embedding the first optoelectronic element (104) and the second optoelectronic element (106) in the recess, wherein the surface structured element configures a surface of the filling compound (112) such that at least two domed regions (114, 116, 118) of the surface are formed.

Abstract: A headlight system is provided for a motor vehicle and includes, but is not limited to at least one light source and beam-forming apparatus for generating the main light beam with an essentially horizontal cut-off line and a marker light beam within a limited azimuth angle range above the cut-off line of the main light beam. The beam-forming apparatus are switchable between at least two stationary states that differ from each other in the progression of an upper cut-off line of the marker light beam.

Abstract: A planar light guide includes a main body with a back face and a radiation outcoupling face opposite thereto, a main direction of light guidance parallel to the radiation outcoupling face, at least one plurality of identically shaped and identically oriented outcoupling structures formed on at least one of the main faces, and at least one structure main face per outcoupling structure, wherein an angle-dependent emission characteristic is provided asymmetrically in a first plane parallel to the main direction of light guidance and perpendicular to the radiation outcoupling face.

Abstract: A drivetrain for a hybrid vehicle has at least one ground engaging element, a torque transmission shaft operatively connected thereto, an electric motor, a transmission having an input shaft and an output shaft, and an internal combustion engine operatively connected to the input shaft of the transmission. The electric motor and the output shaft are operatively connected to the torque transmission shaft. The transmission has a neutral shift position, a first shift position, and at least one higher shift position including a highest shift position. The transmission is capable of shifting directly from the neutral shift position to the first shift position and directly from the neutral shift position to the highest shift position. A vehicle having the drivetrain is also disclosed. A method of starting an internal combustion engine in a hybrid vehicle is also disclosed.

Abstract: A headlight system is provided for a motor vehicle and includes, but is not limited to at least one light source and beam-forming apparatus for generating the main light beam with an essentially horizontal cut-off line and a marker light beam within a limited azimuth angle range above the cut-off line of the main light beam. The beam-forming apparatus are switchable between at least two stationary states that differ from each other in the progression of an upper cut-off line of the marker light beam.

Abstract: A light diffuser for a vehicle headlamp having a plurality of light sources that each is arranged inside a reflector is provided. The light diffuser is capable of representing a light-dark boundary of the low beams generated by the light sources without interruption, and is capable of diffusely scattering the daytime running lights emitted by the light sources so as to generate a homogenous exit of light for the light sources.

Abstract: A planar light guide includes a main body with a back face and a radiation outcoupling face opposite thereto, a main direction of light guidance parallel to the radiation outcoupling face, at least one plurality of identically shaped and identically oriented outcoupling structures formed on at least one of the main faces, and at least one structure main face per outcoupling structure, wherein an angle-dependent emission characteristic is provided asymmetrically in a first plane parallel to the main direction of light guidance and perpendicular to the radiation outcoupling face.

Abstract: An optoelectronic semiconductor component comprising: a main body (100) having a recess; (102), a first optoelectronic element (104) and a second optoelectronic element; (106) a surface structured element; (110) and a filling compound (112) embedding the first optoelectronic element (104) and the second optoelectronic element (106) in the recess, wherein the surface structured element configures a surface of the filling compound (112) such that at least two domed regions (114, 116, 118) of the surface are formed.

Abstract: The invention relates to an infrared measuring device, especially for the spectrometry of aqueous systems. Said device comprises at least one measuring unit, especially a measuring cell, also comprising at least one ATR-body and at least one infrared light source. The measuring unit contains at least one ATR-body which comprises at least two planar, substantially parallel limiting surfaces and which is transparent with respect to measuring radiation and which has an index of refraction which is greater than that of the medium which is arranged next to at least one limiting surface and which is to be examined, especially larger or equal to 1.5. The IR-measuring radiation on at least one of the planar, parallel limiting surfaces of the ATR-body can be totally reflected in an attenuated manner by at least six times.

Abstract: A component or semi-finished piece is made from a hot-form aluminium alloy of the following composition in wt. %: silicon 0.9-1.3, magnesium 0.7-1.2, manganese 0.5-1.0, copper less than 0.1, iron less than 0.5, chromium less than 0.25, titanium less than 0.1, zinc less than 0.2, zirconium and/or hafnium 0.05-0.2 and further unavoidable impurities, whereby the total amount of chromium and manganese and zirconium and/or hafnium is at least 0.4 by weight. The aluminium/silicon mixed crystals are present in addition to magnesium silicide precipitates.

Abstract: The invention relates to a method for the production of drop forge parts essentially comprising titanium, zirconium, hafnium or a corresponding alloy, enabling rigidity thereof to be increased.

Abstract: The invention relates to a process for quenching and tempering of cast cylinder heads for internal combustion engines as well as such cylinder heads, in particular cylinder heads made from cast aluminum or an aluminum alloy, in which the cylinder head 1 is heat treated subsequently to the casting, in which the cylinder head 1 is adaptively adjusted heat treated in the different regions 2, 3 according to the thermal and mechanical requirements of said regions 2, 3.

Abstract: The invention relates to a high-strength, thermally-resistant, ductile, cast aluminium alloy (Al Si 7 Mg 0.25 Zr wa, or Al Si 7 Mg 0.25 Hf wa) and (Al Si 6 Mg 0.25 Zr wa or Al Si 6 Mg 0.25 Hf wa), comprising Si: 6.5 to 7.5 wt. % and 5.5 to 6.5 wt.-%, Mg: 0.20 to 0.32 wt. %, Zr: 0.03 to 0.50 wt. % and/or Hf: 0.03 to 1.50 wt. %, Ti: 0 to 0.20 wt. %, Fe: <0.20 wt. %, Mn: <0.50 wt. %, Cu: <0.05 wt. %, Zn: <0.07 wt. % and made up to 100 wt. % with Al. The invention relates to the use thereof for workpieces or parts thereof with elevated thermal loading, such as a cylinder head.

Abstract: A process for coating a metallic component with a corrosion-resistant layer comprises providing a metallic shaping tool that is at least partially sprayed with concentrated mold release agent. The component is cast in the metallic shaping tool, the concentrated mold release agent being fired into a surface of the component during the solidification of the component.

Abstract: The invention relates to an infrared measuring device, especially for the spectrometry of aqueous systems. Said device comprises at least one measuring unit, especially a measuring cell, also comprising at least one ATR-body and at least one infrared light source. The measuring unit contains at least one ATR-body which comprises at least two planar, substantially parallel limiting surfaces and which is transparent with respect to measuring radiation and which has an index of refraction which is greater than that of the medium which is arranged next to at least one limiting surface and which is to be examined, especially larger or equal to 1.5. The IR-measuring radiation on at least one of the planar, parallel limiting surfaces of the ATR-body can be totally reflected in an attenuated manner by at least six times.

Abstract: A water quenched magnesium/aluminum die casting alloy, includes Al between 2.8 and 3% by weight; Si between 0.7, and 1.5% by weight; Mn greater than 0.20% by weight; Zn less than 0.20% by weight; Cu less than 100 ppm; Ni less than 20 ppm; and Fe less than 50 ppm. in addition, a method for manufacturing the magnesium/aluminum die casting alloy wherein the water quenching takes place within a predetermined time period after casting or after the die casting mold is opened.

Abstract: A component or semi-finished piece is made from a hot-form aluminium alloy of the following composition in wt. %: silicon 0.9-1.3, magnesium 0.7-1.2, manganese 0.5-1.0, copper less than 0.1, iron less than 0.5, chromium less than 0.25, titanium less than 0.1, zinc less than 0.2, zirconium and/or hafnium 0.05-0.2 and further unavoidable impurities, whereby the total amount of chromium and manganese and zirconium and/or hafnium is at least 0.4 by weight. The aluminium/silicon mixed crystals are present in addition to magnesium silicide precipitates.

Abstract: A process for coating a metallic component with a corrosion-resistant layer comprises providing a metallic shaping tool that is at least partially sprayed with concentrated mold release agent. The component is cast in the metallic shaping tool, the concentrated mold release agent being fired into a surface of the component during the solidification of the component.