Sep 04 Image OSC Colloquium: Jim Burge 3:30 – 5 p.m., Sept. 4, 2025 We have all heard the saying “If you cannot measure it, you cannot make it,” for optical fabrication, but it applies to most things where precision is required. The past decades have seen fantastic advancements in optical systems from astronomical telescopes that see to the edge of the universe to virtual reality systems that enable people to experience worlds that never exist. The new optical components and systems have required new ways to measure them.