III. RESULTS AND DICUSSION

The data

Fundamental uncertainty in distance based on measurement of principle of laser triangulation. The laser travel from the source to the surface sample with the O shape [] .Other hand, the surface observe a light spot S, this depend on the lens the operator use. Each lens has difference numerical aperture design in, and the number aperture depend on the function sin of angle. In the optical profiling the position display on the monitor depends on the position of the lithography system and detector sensitive build in. Also the light intensity and phase shift is the key to affect image [].