ANALYSIS OF SURFACE-ROUGHNESS USING CONFOCAL MICROSCOPY

Confocal microscopy provides a convenient means of acquiring three-dim ensional descriptions of objects. A new technique exploits the capabil ity of confocal microscopy to quantify rough surfaces. The microscope ''optically'' sections the surface, and a computer transforms a series of sections into digital images and a topographic map. Using a straig htforward algorithm, the computer analyses the topographic map to deri ve a roughness parameter that characterizes the texture of the surface .