Adjustment device for adjusting optical components of an optical instrument and device arrangement

An adjustment device for adjusting optical components of an optical instrument, the adjustment device comprising:

• an adjustment screw and a carrier, the adjustment screw configured to arrange the optical component on the carrier so as to fix the optical component in an exact position relative to another component of the optical instrument;
• and
• wherein the adjustment screw, includes a screw head and a shaft, the shaft having an outer thread, the adjustment screw further including a slit extending from the screw head into the shaft in a longitudinal direction, the slit having a first end opposite a second end, the first end is open and disposed at the screw head and the second end is closed by the shaft, the slit providing a spring elasticity in a radial and outward direction, seen in cross section, relative to the longitudinal direction such that the adjustment screw is able to be fixed by being clamped with its outer thread in an inner thread of the carrier or of the other component, and the adjustment screw is mounted with a screw tip on the other component or the carrier.