Optical measurement refers to techniques that use light to assess the properties of objects. This can include measuring dimensions, shapes, and surface characteristics. Common tools for optical measurement include lasers, cameras, and microscopes, which capture images or data that can be analyzed for accuracy and precision. These methods are widely used in various fields, such as manufacturing, engineering, and medical diagnostics. Optical measurement is valued for its non-contact nature, allowing for measurements without physically touching the object, which helps prevent damage and ensures the integrity of delicate items.