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Global precision machining tech for optical instrument coresTech — Jul 24, 2026Across multiple outlets, the articles describe using professional CAD-based 3D modeling to achieve strict optical tolerances for coaxiality, runout, and mating clearance in lens barrels, holders, and aperture blades, while translating aberration control and thermal adaptability into design features. They also emphasize stress-aware assembly, dynamic simulations for moving components, thermal matching for extreme temperatures, and a specialized material system (Invar or Super Invar with non-magnetic stainless steel and high-elasticity aperture blades such as beryllium) to ensure imaging stability. 
