Linear polarizing filter φ80 1 piece

A linear polarizer transmits incident light with linear polarization. Compatible with the visible range (400 to 700 nm). Size (mm): φ80 Medium thickness (mm): 4 Material: B270 Usable wavelength: 400-700nm Substrate refractive index: 1.523/nd Chamfered all around and along all edges <Tolerance range> Outer diameter: +0/-0.2mm Plate thickness: ±0.2mm Maximum transmittance: 35% (1 piece) Minimum transmittance: 0.2% (when two sheets are crossed) Parallelism: within 3 minutes (3') Substrate surface accuracy: λ to 3λ (effective range: within 85% including center) Surface quality: MIL60-40