12.7mm Dia. x 12.7mm FL, Uncoated, ISP Optics Barium Fluoride (BaF>sub>2 ) DCX Lens | BF-BX-12-12

Product Details Excellent Transmission from 0.2 – 12μm Provide High Transmission without AR Coatings Ideal for Infrared Spectroscopy and Infrared Imaging Applications ISP Optics Barium Fluoride (BaF 2 ) Double-Convex (DCX) Lenses are ideal for infrared spectroscopy and infrared imaging applications requiring high transmission from 0.2 – 12µm. Barium Fluoride features a low index of refraction, enabling excellent transmission from the Vacuum-UV (VUV) to the Long-Wave Infrared (LWIR) without the need for Anti-Reflection (AR) coatings. These lenses also provide higher resistance to high-energy radiation than Calcium Fluoride, even though they have similar physical properties. ISP Optics Barium Fluoride (BaF 2 ) Double-Convex (DCX) Lenses can be used up to 800°C in a dry environment, but prolonged exposure to moisture can degrade transmission in the ultraviolet range. Note: These lenses are very sensitive to thermal shock. Specifications General Type: Double-Convex Lens Model Number: BF-BX-12-12 Physical & Mechanical Properties Diameter (mm): 12.70 +0.00/-0.13 Center Thickness CT (mm): 5.80 ±0.20 Edge Thickness ET (mm): 1.50 Centering (arcmin): <3 Clear Aperture CA (mm): 11.43 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 12.70 @ 5μm Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Barium Fluoride (BaF 2 ) f/#: 1.00 Coating: Uncoated Wavelength Range (nm): 200 - 12000 Surface Quality: 60-40 Irregularity (P-V) @ 632.8nm: λ Focal Length Tolerance (%): ±2 Radius R 1 (mm): 10.47 Radius R 2 (mm): 10.471 Numerical Aperture NA: 0.50 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×