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The Self-Aligned Focusing Schlieren (SAFS) system, developed by NASA engineers in 2020, enhances schlieren imaging in wind tunnel tests by reducing setup time from weeks to minutes. Unlike traditional systems requiring dual grids, SAFS operates with a single grid from one side, minimizing alignment issues.

It is currently utilized in various NASA programs for flow visualization, including the High Lift Common Research Model and Space Launch System models. More than 50 institutions across eight countries have adopted the SAFS, which has also been recognized with an R&D World R&D 100 Award for 2025 and NASA's Government Invention of the Year.