Polarizers are designed to reduce specular glare by passing only the light polarized in the direction perpendicular to the reflected light (glare). In addition, they help improve contrast, increase color saturation, and detect imperfections in transparent materials. MidOpt Polarizing Filters can be quickly and securely mounted to your lens and light source for maximum extinction or glare reduction.   
  
https://machinevisiondirect.com/collections/polarizing-film?usf_view=list