Optical coordinate measuring instrument is a kind of high precision measuring equipment, it uses the optical principle to measure the coordinate of the object. It has the following characteristics: non-contact measurement to avoid damage to the measured object; High measurement accuracy, can provide accurate coordinate data; Suitable for measuring objects of various shapes and materials; Fast access to large amounts of measurement data. It is widely used in industrial manufacturing, quality testing, scientific research and other fields, helping to improve production efficiency, ensure product quality, and promote technological innovation