Abstract: An optical measuring device having a base for placing the measuring device and a targeting unit that is rotatable with respect to the base and defines a target axis for targeting a target object that is to be measured. The targeting unit has a first beam path for emitting optical measurement radiation in the direction of the target object that is to be measured. The targeting unit furthermore has a diffractive optical element (DOE), which is arranged or arrangeable in the beam path such that the optical measurement radiation is homogenized.

Abstract: A lens enclosure and objective for a metrological camera, the lens enclosure comprising a first support area for support of the first optical element and a second support area for support of the second optical element, spaced apart from each other. The first and second support area are shaped as a segment of a surface of at least one right cone each such that the support of the first and second optical element each is self-centering with respect to translation in all directions as well as tilt in relation to the optical axis.

Abstract: The invention relates to a measurement system, e.g. comprising a total station and an auxiliary measurement instrument in the form of a pole, and/or an auxiliary measurement instrument, e.g. a pole, and/or a method for determining positions in the field of geodesics or on construction sites, e.g. by means of a construction laser.

Abstract: A method and device for displaying desired positions in a live image of a construction site. The method mat include recording at least one position-referenced image of the construction site; linking at least one desired position to the position-referenced image; storing the position-referenced image together with desired position linkage in an electronic memory; recording a live image of the construction site, in particular in the form of a video, wherein the live image and the position-referenced image at least partially represent an identical detail of the construction site; retrieving the stored position-referenced image from the memory; fitting the position-referenced image with the live image, so that the desired position linked to the position-referenced image can be overlaid in a position-faithful manner on the live image; and position-faithful display of the desired position as a graphic marking in the live image.

Abstract: A surveying instrument comprising a distance meter, wherein the distance meter is configured for projecting a perceptibility beam onto an object and measuring a distance to the object, wherein the distance meter is configured for running a perceptibility enhancing mode, wherein, when running the perceptibility enhancing mode, the distance meter is directed to emit the perceptibility beam with a modulation, wherein the modulation has a switching frequency of at least 0.25 Hz but lower than 200 Hz.

Abstract: An optical measuring device having a base for placing the measuring device and a targeting unit that is rotatable with respect to the base and defines a target axis for targeting a target object that is to be measured. The targeting unit has a first beam path for emitting optical measurement radiation in the direction of the target object that is to be measured. The targeting unit furthermore has a diffractive optical element (DOE), which is arranged or arrangeable in the beam path such that the optical measurement radiation is homogenized.

Abstract: The invention relates to a surveying apparatus, in particular tachymeter, laser scanner, profiler or laser tracker, comprising an electronic laser distance measuring module, which comprises an optical transmission channel and an optical reception channel for laser measurement radiation, wherein a variable optical attenuation unit for the laser measurement radiation is provided in the optical transmission channel and/or optical reception channel. According to the invention, light impinging on the attenuation unit is attenuated by means of liquid crystals. The attenuation unit comprises at least one polarizer, in particular comprising a polarization sheet, a liquid crystal shutter, in particular comprising nematic liquid crystals, having a variable transmission, a first analyzer, in particular comprising a polarization sheet.

Abstract: Some embodiments of the invention relate to a surveying pole comprising at least two pole sections being telescopically insertable into each other so that a height adjustment of the pole is provided, a pointing tip at the lower end of the pole for setting the pole on a terrain point, a receptacle at an upper end of the pole for mounting a position giving means, a height measuring system for indicating the distance of the position giving means relative to the terrain point.

Abstract: The invention relates to a geodetic instrument, in particular a geodetic telescope, for example for a theodolite, or geodetic overview, photogrammetry or axial camera, comprising an imaging optical system which defines an optical axis and comprises an observation beam path for imaging a target object by an eyepiece and/or on a camera sensor, for registering and/or providing an image of the sighted target object. According to the invention, the imaging optical system comprises at least two diffractive optical elements in the observation beam path.

Abstract: Some embodiments of the invention relate to a surveying pole comprising at least two pole sections being telescopically insertable into each other so that a height adjustment of the pole is provided, a pointing tip at the lower end of the pole for setting the pole on a terrain point, a receptacle at an upper end of the pole for mounting a position giving means, a height measuring system for indicating the distance of the position giving means relative to the terrain point.

Abstract: The invention relates to a positioning apparatus, comprising a rotatable spindle, a sliding member, wherein a spindle counter segment of the sliding member is displaced along the spindle when the spindle rotates, a first guide for the sliding member, which interacts with a first guide counter segment of the sliding member and, in the process, leaves the sliding member with a linear mobility along the first guide axis and a pivotability about the first guide axis, and a second guide for the sliding member, which interacts with a second guide counter segment of the sliding member and, in the process, restricts the pivotability of the sliding member about the first guide axis.

Abstract: The invention relates to a geodetic instrument, in particular a geodetic telescope, for example for a theodolite, or geodetic overview, photogrammetry or axial camera, comprising an imaging optical system which defines an optical axis and comprises an observation beam path for imaging a target object by an eyepiece and/or on a camera sensor, for registering and/or providing an image of the sighted target object. According to the invention, the imaging optical system comprises at least two diffractive optical elements in the observation beam path.

Abstract: The invention relates to a surveying apparatus, in particular tachymeter, laser scanner, profiler or laser tracker, comprising an electronic laser distance measuring module, which comprises an optical transmission channel and an optical reception channel for laser measurement radiation, wherein a variable optical attenuation unit for the laser measurement radiation is provided in the optical transmission channel and/or optical reception channel. According to the invention, light impinging on the attenuation unit is attenuated by means of liquid crystals. The attenuation unit comprises at least one polarizer, in particular comprising a polarization sheet, a liquid crystal shutter, in particular comprising nematic liquid crystals, having a variable transmission, a first analyzer, in particular comprising a polarization sheet.

Abstract: The invention relates to a positioning apparatus, comprising a rotatable spindle, a sliding member, wherein a spindle counter segment of the sliding member is displaced along the spindle when the spindle rotates, a first guide for the sliding member, which interacts with a first guide counter segment of the sliding member and, in the process, leaves the sliding member with a linear mobility along the first guide axis and a pivotability about the first guide axis, and a second guide for the sliding member, which interacts with a second guide counter segment of the sliding member and, in the process, restricts the pivotability of the sliding member about the first guide axis.

Abstract: A geodesic measurement system having a geodesic measurement device. A unique identification code is allocated to each of the target objects, such that the target objects can be differentiated from one another based on the identification code. The measurement device has a distance and angle measurement functionality for determining the position of the target objects. The measurement device is designed for emission of the beam such that the identification code of a target object that is searched for from the target object volume can be modulated to the beam as a code to be searched for. The target unit has an evaluation component connected to the detector for inspecting correspondence between the code modulated to the beam and the own identification code of the target unit and a transmission component for transmission of a reactive confirmation signal to the geodesic measurement device that takes place upon correspondence being determined.

Abstract: A leveling device having a sighting device that defines an alignment axis, an imaging system, spatially separated from the sighting device, having an imaging lens to which a lens primary plane is allocated and a detector having a recording surface lying in an image plane and an evaluation device that is connected to the detector. A visual field of the imaging system is defined by the imaging lens and the detector as the maximum angle range within which points can be registered by the imaging lens by means of the recording surface of the detector. The imaging lens and the detector are designed and arranged relative to one another and to a lens plane comprising the alignment axis such that all points of the lens plane within the visual field are simultaneously imaged in focus on the recording surface of the detector.

Abstract: A leveling device having a sighting device that defines an alignment axis, an imaging system, spatially separated from the sighting device, having an imaging lens to which a lens primary plane is allocated and a detector having a recording surface lying in an image plane and an evaluation device that is connected to the detector. A visual field of the imaging system is defined by the imaging lens and the detector as the maximum angle range within which points can be registered by the imaging lens by means of the recording surface of the detector. The imaging lens and the detector are designed and arranged relative to one another and to a lens plane comprising the alignment axis such that all points of the lens plane within the visual field are simultaneously imaged in focus on the recording surface of the detector.

Abstract: A geodesic measurement system having a geodesic measurement device. A unique identification code is allocated to each of the target objects, such that the target objects can be differentiated from one another based on the identification code. The measurement device has a distance and angle measurement functionality for determining the position of the target objects. The measurement device is designed for emission of the beam such that the identification code of a target object that is searched for from the target object volume can be modulated to the beam as a code to be searched for. The target unit has an evaluation component connected to the detector for inspecting correspondence between the code modulated to the beam and the own identification code of the target unit and a transmission component for transmission of a reactive confirmation signal to the geodesic measurement device that takes place upon correspondence being determined.