A device for spatially orienting an x-ray optical unit with an optical entry point and an optical exit point, comprising: - a holding element for holding and affixing the x-ray optical unit, so that it is aligned in an initial position in the z direction and the entry point is located on at least one pivot axis (336, 376) which is structurally predetermined by the device; - a parallel displacement mechanism connected to the holding element for adjusting the entry point of the x-ray optical unit on a first predetermined point, comprising: - a first parallel kinematics unit, designed for the parallel displacement of the x-ray optical unit in a first parallel displacement direction that differs from the z direction, - a second parallel kinematics unit, designed for the parallel displacement of the x-ray optical unit in a second parallel displacement direction that differs from the z direction and the first parallel displacement direction; - a goniometer mechanism, which is connected to the holding element and the parallel displacement mechanism, for adjusting the exit point of the x-ray optical unit to a second predefined point, wherein the goniometer mechanism is designed to implement a pivot of the x-ray optical unit around the entry point, comprising: - a first goniometer kinematics unit designed to pivot the x-ray optical unit around a first pivot axis, wherein the first pivot axis extends in a direction that differs from the z direction - characterized in that the parallel displacement mechanism and the goniometer mechanism are coaxially arranged in each other. - a holding element for holding and affixing the x-ray optical unit, so that it is aligned in an initial position in the z direction and the entry point is located on at least one pivot axis (336, 376) which is structurally predetermined by the device; - a parallel displacement mechanism connected to the holding element for adjusting the entry point of the x-ray optical unit on a first predetermined point, comprising: - a first parallel kinematics unit, designed for the parallel displacement of the x-ray optical unit in a first parallel displacement direction that differs from the z direction, - a second parallel kinematics unit, designed for the parallel displacement of the x-ray optical unit in a second parallel displacement direction that differs from the z direction and the first parallel displacement direction; - a first parallel kinematics unit, designed for the parallel displacement of the x-ray optical unit in a first parallel displacement direction that differs from the z direction, - a second parallel kinematics unit, designed for the parallel displacement of the x-ray optical unit in a second parallel displacement direction that differs from the z direction and the first parallel displacement direction; - a goniometer mechanism, which is connected to the holding element and the parallel displacement mechanism, for adjusting the exit point of the x-ray optical unit to a second predefined point, wherein the goniometer mechanism is designed to implement a pivot of the x-ray optical unit around the entry point, comprising: - a first goniometer kinematics unit designed to pivot the x-ray optical unit around a first pivot axis, wherein the first pivot axis extends in a direction that differs from the z direction - a first goniometer kinematics unit designed to pivot the x-ray optical unit around a first pivot axis, wherein the first pivot axis extends in a direction that differs from the z direction - characterized in that the parallel displacement mechanism and the goniometer mechanism are coaxially arranged in each other.