Product Name: Optic PolarizerPlace of Origin: ChinaSizes, material and coatings are available upon your request. You could send us your specifications or drawings. We will be happy to return a quotation ASAP as the average response time is within 24 hours. Meanwhile our optical designers are always available to assist with your special needs, and our factories in China are ready to meet your quantity requirements. Polarizer is an important optical component that is widely used in polarizing optics to produce the state of linear polarization. We provide polarizers with three materials (α-BBO, calcite and YVO4) to suit for the widest spectrum and high polarization purity applications. Specifications: 1) Material: calcite 2) Wavelength range: 350 - 2,300nm 3) Surface quality: 60 - 40 scratch and dig 4) Dimensions tolerance: ±0.1mm 5) Coating: single layer MgF2 AR coating at 633nm 6) Housing: black anodized aluminum