Abstract: A vacuum-cleaner nozzle has a housing formed with a downwardly open suction mouth on a lower face of the housing and having a front mouth edge and a rear mouth edge. A suction fitting on a rear end of the housing and opening into the housing serves for drawing air in through the mouth. A floor-engaging support rearward of the rear mouth edge is vertically displaceable relative to the housing between upper and lower positions. A spring biases the support into the lower position.

Abstract: A method for determining an object in a surroundings of a motor vehicle includes: scanning a far range, which extends as of a predetermined minimum distance from the radar sensor, using a radar sensor for scanning the far range; detecting objects in the far range based on reflections of a radar signal emitted by the radar sensor; and determining a crossing object in a close range, which lies between the radar sensor and the far range, if a previously detected object is no longer able to be detected in the far range using the radar sensor.

Abstract: A method for determining an object in a surroundings of a motor vehicle includes: scanning a far range, which extends as of a predetermined minimum distance from the radar sensor, using a radar sensor for scanning the far range; detecting objects in the far range based on reflections of a radar signal emitted by the radar sensor; and determining a crossing object in a close range, which lies between the radar sensor and the far range, if a previously detected object is no longer able to be detected in the far range using the radar sensor.

Abstract: The invention relates to a laser system with a passively Q-switched laser 1, a spectrally widening element 3, and a compression element 4. Laser systems of this kind are utilized for generating ultra-short laser pulses. Systems, mode-coupled solid-state lasers known from prior art allow for generating laser pulses in the sub-10 ps range only with complicated and alignment-sensitive free-beam arrangements. Therefore, it is the object of the present invention to create a laser system that generates pulse durations of less than 10 ps and which is simple and compact to produce at the same time. In order to achieve this object, the present invention proposes that the passively Q-switched laser 1 is provided with a longitudinally monomode output radiation which is spectrally widened by means of the spectrally widening element 3 by self-phase modulation and is temporally compressed by the compression element 4.

Abstract: The invention relates to a Q-switched laser comprised of a pump light source (1), an optical resonator accommodating a laser medium (6), and a passive Q-switch (5). It is the object of the present invention to provide an improved Q-switched laser which is of a simple and compact setup while having the least possible jitter of the repetition time. To achieve this target, the invention proposes that by means of a beam splitter (8) part of the light coupled out of the optical resonator is passed on to an optical delay line (9) and coupled back into the optical resonator upon having passed through the optical delay line (9).

Abstract: The invention relates to a laser system with a passively Q-switched laser 1, a spectrally widening element 3, and a compression element 4. Laser systems of this kind are utilized for generating ultra-short laser pulses. Systems, mode-coupled solid-state lasers known from prior art allow for generating laser pulses in the sub-10 ps range only with complicated and alignment-sensitive free-beam arrangements. Therefore, it is the object of the present invention to create a laser system that generates pulse durations of less than 10 ps and which is simple and compact to produce at the same time. In order to achieve this object, the present invention proposes that the passively Q-switched laser 1 is provided with a longitudinally monomode output radiation which is spectrally widened by means of the spectrally widening element 3 by self-phase modulation and is temporally compressed by the compression element 4.

Abstract: The invention relates to a Q-switched laser comprised of a pump light source (1), an optical resonator accommodating a laser medium (6), and a passive Q-switch (5). It is the object of the present invention to provide an improved Q-switched laser which is of a simple and compact setup while having the least possible jitter of the repetition time. To achieve this target, the invention proposes that by means of a beam splitter (8) part of the light coupled out of the optical resonator is passed on to an optical delay line (9) and coupled back into the optical resonator upon having passed through the optical delay line (9).