Abstract: An adjustable mounting arrangement to position an object of an optical reflecting telescope relative to a base includes at least two support structures connected to the base and to the object. Each of the at least two support structures has two four-link beams arranged nonparallel to each other and a cradle having two connecting links. Each of the two four-link beams has a first strut and a second strut running nonparallel to each other, where each of the first and second struts have a first end and a second end, respectively, and where each of the first and second struts is mounted with articulation via their respective first end in a corresponding inner joint on the object.

Abstract: A support structure for an optical reflecting telescope including a beam inlet a primary support for a primary mirror, a secondary support for a secondary mirror, struts which extend between the primary support and the secondary support, and a beam outlet. The support structure has a contour of a single shell hyperboloid. The primary support, the secondary support and the struts are configured so that they support the primary mirror and the secondary mirror so that a z-shaped beam path is provided between the beam inlet, the primary mirror, the secondary mirror and the beam outlet. The struts have identical length.

Abstract: An adjustable support assembly for an object to be accurately positioned relative to a base, in particular for a secondary mirror of an optical mirror telescope, has at least one support structure connected to the base and to the object. The support structure has at least two struts extending in a non-parallel manner relative to each other, where each strut has associated therewith a drivable actuator element in such a way that the actuator element applies a force onto the strut that deflects the strut transversely to the longitudinal extension thereof. The support structure may be supported in an articulated manner relative to the base.

Abstract: An adjustable mounting arrangement to position an object of an optical reflecting telescope relative to a base includes at least two support structures connected to the base and to the object. Each of the at least two support structures has two four-link beams arranged nonparallel to each other and a cradle having two connecting links. Each of the two four-link beams has a first strut and a second strut running nonparallel to each other, where each of the first and second struts have a first end and a second end, respectively, and where each of the first and second struts is mounted with articulation via their respective first end in a corresponding inner joint on the object.

Abstract: An adjustable support assembly for an object to be accurately positioned relative to a base, in particular for a secondary mirror of an optical mirror telescope, has at least one support structure connected to the base and to the object. The support structure has at least two struts extending in a non-parallel manner relative to each other, where each strut has associated therewith a drivable actuator element in such a way that the actuator element applies a force onto the strut that deflects the strut transversely to the longitudinal extension thereof. The support structure may be supported in an articulated manner relative to the base.

Abstract: A support structure for an optical reflecting telescope including a beam inlet a primary support for a primary mirror, a secondary support for a secondary mirror, struts which extend between the primary support and the secondary support, and a beam outlet. The support structure has a contour of a single shell hyperboloid. The primary support, the secondary support and the struts are configured so that they support the primary mirror and the secondary mirror so that a z-shaped beam path is provided between the beam inlet, the primary mirror, the secondary mirror and the beam outlet. The struts have identical length.

Abstract: A load test stand includes a frame, a flange, and a spring mechanism. The spring mechanism is mounted on the frame and includes a symmetrical arrangement of at least four spring elements. The spring mechanism also includes frame points connecting the spring mechanism and the frame and articulation points connecting the spring mechanism and the flange. The flange can be coupled, by an adapter, to the output shaft of a servo system that is to be tested.

Abstract: A load test stand includes a frame, a flange, and a spring mechanism. The spring mechanism is mounted on the frame and includes a symmetrical arrangement of at least four spring elements. The spring mechanism also includes frame points connecting the spring mechanism and the frame and articulation points connecting the spring mechanism and the flange. The flange can be coupled, by an adapter, to the output shaft of a servo system that is to be tested.