Ultra - precision manufacturing is an advanced technique. It processes materials via cutting, grinding, polishing, etc., at sub - micron or nanometer - level precision to produce high - precision, high - surface - quality parts. As a core of modern manufacturing, it's decisive for many high - end fields. In optics, it bridges cutting - edge designs to high - performance components, ensuring high - resolution, high - integration, and lightweight miniaturization of optical systems.

Currently, the field has multiple hotspots. Ultra - precision equipment keeps upgrading for higher shape accuracy (e.g., < 15 nm) and positioning accuracy (0.1 μm), with ultra - high - speed spindles enabling complex - shape diamond turning. Advanced design and manufacturing thrive: freeform surface design breaks rotational - symmetry limits, using servo turning and intelligent algorithms for optimal shapes on various materials, enhancing system performance and reducing size. Detection technology innovates by integrating high - precision scanning, nanometer - level interference measurement, and cross - scale data fusion for comprehensive quality control.

Yet, the industry faces challenges. The complex adaptability between material microstructures and processing techniques causes defects, affecting component precision. Cross - scale data conversion and collaboration lack integrated solutions, from atomic - level material control to macroscopic - scale performance, hampering progress towards higher precision and complexity.

The "Optical Ultra-precision Manufacturing Forum" convenes experts, scholars, and industry elites. They'll discuss hotspots, confront challenges, and drive technological breakthroughs and industrial development.