The Optical design optimization tag covers methods and tools used to refine lens and system designs for better performance, robustness, and manufacturability. Articles associated with this tag explain how designers iterate on parameters such as curvature, spacing, glass choice, and aspheric or freeform surfaces to minimize aberrations while also accounting for tolerances and real-world production variations. Topics may include merit function setup, global versus local optimization, and incorporation of stray light, thermal, and mechanical effects into the design process. Readers also see how practical constraints—like available materials, coating limitations, housing dimensions, and target cost—are integrated into optimization to avoid solutions that look ideal in software but are difficult to build. For engineers and project managers, this tag demonstrates how a structured optimization workflow reduces risk, shortens development cycles, and improves yield. It underscores Avantier’s ability to use advanced design tools and experience-based judgment to deliver optical systems that perform reliably in their intended applications. [avantierinc]​