Patent ID: 7855791

Claim:
A vibration-resistant interferometric scanning system, comprising: a light source module; an optics module, for receiving the light from the light source module so as to form a high-coherent interference pattern and a low-coherent interference pattern corresponding to the surface profile of a measured object; and a control unit, capable of performing a compensation action to lock the brightness distribution of the high-coherent interference pattern and consequently locking the fringe distribution of the low-coherent interference pattern; or capable of performing plural processes in sequence and every process being performed in a manner that the control unit first performs a shifting action with a specified shifting distance, and then basing upon the specified shifting distance, the wavelength of the light forming the high-coherent interference pattern, and the brightness distribution of the high-coherent interference pattern acquired before the shifting action to perform a compensation action to lock the brightness distribution of the high-coherent interference pattern after the shifting action so that the fringe distribution of the low-coherent interference pattern after the shifting action is locked consequently.