50.8mm Dia. x 76.2mm FL, Uncoated, ISP Optics Germanium (Ge) PCX Lens | GE-PX-50-76

Product Details Ideal for Thermal Imaging Applications Uncoated Transmission from 2 – 16µm Available Uncoated or BBAR Coated for 3 – 12µm Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team . Edmund Optics has limited remaining inventory of this part number and no raw material available to supply more once this is depleted. Please contact our Product Support Engineers to help with an alternate solution for your needs. Customer Service can provide you the latest price and availability. ISP Optics Germanium (Ge) Plano-Convex (PCX) Lenses provide transmission and low absorption through the Long-Wave Infrared (LWIR) spectrum, making them useful for thermal imaging applications. Germanium is chemically inert and insoluble in water with a Knoop Hardness of 780, making it ideal for applications requiring rugged optics. However, Germanium is subject to thermal runaway and should be used at temperatures below 100°C. ISP Optics Germanium (Ge) Plano-Convex (PCX) Lenses are available uncoated with a broad transmission range from 2 – 16µm or with a Broadband Anti-Reflection (BBAR) coating for enhanced transmission in the Mid-Wave Infrared (MWIR) and Long-Wave Infrared (LWIR). Specifications General Type: Plano-Convex Lens Model Number: GE-PX-50-76 Physical & Mechanical Properties Diameter (mm): 50.80 +0.00/-0.13 Center Thickness CT (mm): 4.00 ±0.20 Edge Thickness ET (mm): 2.60 Centering (arcmin): <3 Clear Aperture CA (mm): 45.72 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 75.00 @10.6µm Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Germanium (Ge) f/#: 1.48 Coating: Uncoated Wavelength Range (nm): 2000 - 14000 Surface Quality: 60-40 Irregularity (P-V) @ 10.6μm: λ/20 Focal Length Tolerance (%): ±2 Radius R 1 (mm): 229.10 Numerical Aperture NA: 0.34 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×