Posuv opto-mechanických podsestav v axiálním směru

Abstract

This master thesis presents the structural design and comprehensive computational verification of a precision mechanism for the axial positioning of an optical lens within a compact space. The theoretical part analyzes modern and conventional mounting methods for optical elements and the principles of linear guides applied in precision instrumentation. The practical part provides a detailed description of the designed mechanism, which is centered around a monolithic double-start helical flexure ensuring backlash-free movement and high positioning repeatability. The design was subsequently validated and optimized using analytical calculations, finite element method (FEM) simulations, and a statistical Monte Carlo analysis. The results confirm that the proposed system reliably meets the strict requirements for positioning accuracy and optical axis stability while maintaining high operational reliability