Request InfoMidwest Optical Systems Inc. (MidOpt)Midwest Optical Systems Inc. has announced acrylic longpass filters to shield lenses and lighting from damage or to economically control the wavelength emission in large area, broad spectrum light sources. Frequently used as enclosure windows, the filters are commonly used in Food & Drug Administration- and European Food Safety Authority-regulated applications where exposed glass over the inspection area is not permitted. Anti-abrasion, anti-reflection coatings are offered, which can also withstand harsh solvents such as acetone. 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