Midwest Optical Systems, a machine vision filters and optical solutions developer, has opened a second location in Delavan, Wis. Members of the Midwest Optical Systems staff at the opening of the Delavan, Wis., manufacturing facility. Courtesy of Midwest Optical Systems. The manufacturing facility features advanced machinery and technology that will help set up all facets of production from prototyping to large-volume manufacturing runs, including proprietary filters. The facility is part of the company’s strategic expansion plan to meet the growing demand for its products worldwide.