IMAGING UNIT FOR AN ENDOSCOPE AND METHOD FOR PRODUCING AN IMAGING UNIT

An imaging unit including: a guide tube having an inner lateral surface extending in a longitudinal direction of the guide tube, the inner lateral surface defining an inner chamber; a lens tube having an outer lateral surface extending in a longitudinal direction of the lens tube, the lens tube being at least sectionally accommodated within the inner chamber of the guide tube; and at least one optical element which is accommodated in the lens tube; wherein the lens tube comprises a plurality of bars disposed on the outer lateral surface, each of the plurality of bars interacting with a corresponding one of a plurality of grooves recessed in the inner lateral surface of the guide tube.