12.7mm Dia. x 25.4mm FL, 8-12µm AR Coated, ISP Optics Zinc Selenide (ZnSe) PCX Lens | AR812-ZC-PX-12-25

Product Details Low Dispersion and Absorption from 0.6 – 18µm High Resistance to Thermal Shock Uncoated or BBAR Coated for 8 – 12µm ISP Optics Zinc Selenide (ZnSe) Plano-Convex (PCX) Lenses are ideal for focusing or collimation of light in the Mid-Wave Infrared (MWIR) and Long-Wave Infrared (LWIR) spectrum. Featuring low absorption and high resistance to thermal shock, ZnSe is widely used in high power CO 2 laser systems. ZnSe is not recommended for harsh environments as it is a relatively soft material that scratches easily, and only has a Knoop Hardness of 120. ISP Optics Zinc Selenide (ZnSe) Plano-Convex (PCX) Lenses are available either uncoated or Broadband Anti-Reflection (BBAR) coated for increased transmission from 8-12µm. Note: Special care should be taken when handling Zinc Selenide as it is a toxic material. Always wear rubber or plastic gloves to avoid risk of contamination. Specifications General Type: Plano-Convex Lens Model Number: AR812-ZC-PX-12-25 Physical & Mechanical Properties Diameter (mm): 12.70 +0.00/-0.13 Center Thickness CT (mm): 2.60 ±0.20 Edge Thickness ET (mm): 2.00 Centering (arcmin): <3 Clear Aperture CA (mm): 11.43 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 25.40 @ 10.6µm Back Focal Length BFL (mm): 24.56 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Zinc Selenide (ZnSe), CVD Grade f/#: 2.00 Coating: BBAR (8000-12000nm) Coating Specification: R avg <0.5% @ 8 - 12µm R abs <1% @ 8 - 12µm Wavelength Range (nm): 8000 - 12000 Surface Quality: 60-40 Irregularity (P-V) @ 10.6μm: λ/20 Focal Length Tolerance (%): ±2 Radius R 1 (mm): 35.97 Numerical Aperture NA: 0.25 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×