An optical profilometer is a precision instrument used to measure the surface topography of materials. It employs light, often from a laser, to capture detailed images of a surface's features, such as roughness and texture. This non-contact method allows for high-resolution measurements without damaging the sample. These devices are widely used in various industries, including semiconductors, automotive, and biomedical, to ensure quality control and improve manufacturing processes. By providing accurate surface measurements, optical profilometers help engineers and scientists understand material properties and enhance product performance.