20mm Dia x 40mm Focal Length, Spherical Mirror

Product Details Aluminum Coating Ideal for UV, Visible, and IR Applications Multiple Diameter and f/# Combinations Available λ/4 Spherical Mirrors have flat rear surfaces and aluminum coated spherical front surfaces. These mirrors are ideal for applications in UV, VIS, and IR wavelength ranges. Specifications General Type: Spherical Mirror Physical & Mechanical Properties Diameter (mm): 20.00 +0.00/-0.30 Center Thickness CT (mm): 3.00 ±0.30 Edge Thickness ET (mm): 3.63 Edges: Ground Radius R (mm): 80.0 Back Surface: Ground Optical Properties Effective Focal Length EFL (mm): 40.00 Focal Length Tolerance (%): ±2 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-BK7 Aperture (f/#): f/2 Coating: Protected Aluminum (400-2000nm) Coating Type: Metal Coating Specification: R avg >85% @ 400 – 700nm R avg >90% @ 400 – 2000nm Wavelength Range (nm): 400 – 2000 Surface Accuracy: λ/4 Surface Quality: 60-40 Radius of Curvature (mm): 80.00 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 247: Compliant ×