A perfected regulation device for focus axis. (Machine-translation by Google Translate, not legally binding)

摘要

An improved regulation device for focusing eye, specifically for optical glasses, which is essentially characterized by the composition of a central cylindrical core stable fixation with respect to the two twin boxes of the apparatus, particularizing itself to comprise inside it, the housing of another cylindrical part in function of nut by having internally threaded the primary axis of the system, both elements being simultaneously concentric to the button-wheel of manual actuation for the corresponding regulation, which is able to receive adhesive pressure consolidation of the neck of the nut piece that is cited to print to this the capacity of conical rotary rotation, shared by both parts to determine the perpendicular movement that the eye transmits in its displacement to the two flanges of the support frame of the two eye tubes. (Machine-translation by Google Translate, not legally binding)