The 05P109AR.16 Polarcor™ Linear Polarizer is a 1/2 inch (12.7 mm) diameter linear polarizer with an 8.1 mm clear aperture offering 89% principle transmission in the 740 to 860 nm wavelength range. It features broader bandwidth, higher transmission, higher temperature resistance, better durability, and higher contrast than dichroic sheet or wire grid polarizers. All Polarcor polarizers are broadband antireflection coated to increase transmission of polarized light.