Abstract: The invention relates to a thermal compensation device having a thermal compensation cell for a hydraulic support cell that has a working chamber and a compensation chamber. According to the invention, each of the chambers of the support cell is connected to a chamber in the thermal compensation cell. Two tightly interconnected pistons with identical working surfaces press on both chambers in the thermal compensation cell. For this purpose, a lateral support system with a reversing lever having at least one hydraulic cell, which has a work cell and a compensation cell, is used. According to the invention, the rotating axis of the reversing lever is arranged at least in one axis running through a hydraulic cell. Each work chamber and the compensation chamber of the hydraulic cell lie opposite each other.

Abstract: The invention is directed to an optical image recording arrangement of a three-dimensional object wherein an illuminating raster generator simultaneously generates a plurality of separate light spots in a first focal plane. The light spots in the first focal plane are imaged by optical elements into a second focal plane on the three-dimensional object. The image of the light spots is imaged by optical elements onto a first detector device having several detector elements. A displacing device is mounted in the beam path of the illuminating raster generator. The displacing device effects at least a two-axis position change of the first focal plane. The method of the invention determines the sharply imaged regions of a three-dimensional object in an optical image recording arrangement. An illuminating raster generator in the image recording arrangement simultaneously generates a plurality of separate light spots in a first focal plane.

Abstract: The invention is directed to a stress-free support which includes two parts 1 and 2 having different linear thermal expansion coefficients. One part can, for example, be a mirror support made of Zerodur and the second part can be an aluminum support structure. A compensating stress-free support with flexure joints (121 to 126, 211 to 213, 214 to 216) increases the stiffness with respect to tilting. The stress-free support has a low weight and a low structural elevation. The entire arrangement is planar.

Abstract: A casing for holding electronic components and the like, is provided on each of its side walls facing away from one another with two fastening lugs which project laterally therefrom and are each provided with an opening for the passage of a screw, and which are associated with casing side edges corresponding to one another. The openings for the passage of a screw which are provided in fastening lugs lying opposite one another and associated with the same side wall of the casing are in each case free from overlap, in their projection, with the fastening lug lying opposite. The arrangement of the fastening lugs makes possible the installation of the casing in both right-hand and left-hand drive vehicles without being mounted with mirror inversion. This provides advantages, for example, when there is restricted space to accommodate the cable leading out of the casing.

Abstract: The invention is directed to an arrangement of plug elements which are joined together to define an axial direction and the attachment of one or more components is made to the outside of the plug elements in the direction perpendicular to the plug element axis. The connection of the individual plug elements can be permanent and releasable.

Abstract: The invention is directed to an arrangement for connecting bodies together wherein temperature-induced constraining forces are minimized. It is intended to prevent constraining forces resulting from thermally-induced tensions when connecting two bodies by utilizing a suitable connecting member. The connecting member is wedge-shaped and its temperature movement is compensated for by one or more compensating elements disposed between the connecting member and the bodies to be connected.

Abstract: A support system includes a passive hydraulic mounting with branched loads and an active mounting by means of which additional forces can be applied to the support points. The mirror is actively deformed with the aid of these additional forces. The additional forces for the active mounting are produced by a purposeful variation of the surfaces or radii of pressure plates on which the mirror rests at the support points.

Abstract: The invention is directed to an edge supporting system that is especially suited for an azimuthally mounted mirror. In this system, the supporting forces are all arranged to be parallel to the projection of the gravity force in the plane of the mirror. The magnitudes of the supporting forces are reduced with increasing distance of the force application points from the upper and lower apex points of the mirror. The supporting forces are preferably so selected that they correspond to the weights of the strip-like segments from which the mirror is assembled and to which points of force application are assigned.

Abstract: The invention in directed to a radiation window for a test container in which satellites are tested under conditions in outer-space. The radiation window is made up of a plurality of individual lens elements arranged one next to the other. These lens elements are part of the conductor system through which an intensive radiation source illuminates a device to be tested such as a satellite to simulate the radiation of the sun.