Acton Research Corp. has completed work on its new facility at 15 Discovery Way in Acton, Mass. The site, which features a Class 10,000 cleanroom, will house the company's optical coating and instrumentation businesses. A subsidiary of Roper Industries Inc. of Duluth, Ga., Acton Research produces optical components, coatings and instrumentation such as monochromators, spectrographs and spectroscopy systems.