Method and apparatus for optical film measurements in a controlled environment

摘要

An optical probe (and method) for measuring a surface in an environment containing a first substance, includes a light source for transmitting a light onto an area of the surface to obtain a measurement, a source of the first substance including one of a fluid and a gas for displacing a second substance from an area of the surface receiving the light, and a measuring device for receiving the light being reflected from the surface and for determining a measurement of the surface based upon the reflected light.