Optical instrument having a stabilization element for mounting and adjusting an optical assembly in a holder, and mounting method for the stabilization element

A geodetic apparatus for surveying, comprising:

• an optical assembly having at least one optical element which defines an optical axis;
• a holder for the optical assembly, the holder having a shape which is suitable for at least approximately accommodating the optical assembly, in an inserted state the optical assembly is inserted within the holder with a gap with a defined width between the optical assembly and the holder;
• and
• a stabilization component for tolerance compensation and for stable connection of the optical assembly and the holder, having at least one stabilization element which can be compressed in the gap in the inserted state, wherein:
• the stabilization element in an unmounted state has a thickness which is greater than the width of the gap,
• the optical assembly, the holder and the stabilization component are formed in such a way and interact in such a way that in an approximately positioned state of the stabilization component, by inserting the optical assembly into the holder, the stabilization element positioned between the optical assembly and the optical holder is compressed in the gap and is plastically deformed in the gap in such a way that residual elastic forces act radially with respect to the optical sighting axis between the assembly and the holder, and the assembly and the holder are stabilized with respect to one another in the radial direction,
• the stabilization element comprises a deformation zone, and the stabilization element comprises a material having homogeneous plastic properties;
• and
• the stabilization component comprises a standalone component that is separate from the optical assembly and the holder.