3″ Dia, 18″ FL 320-450nm, Spherical Mirror

Product Details Ideal for Multispectral Focusing Applications Average Reflectivity >99% Over Broad UV, Visible, and NIR Wavelengths Multiple Sizes Available TECHSPEC Broadband Dielectric Spherical Mirrors are ideal for light collection in multispectral imaging applications. These mirrors feature greater than 99% reflection, significantly better than metal-coated mirrors, and increase system performance by minimizing energy loss. A BOROFLOAT substrate provides a good combination of performance and value. TECHSPEC Broadband Dielectric Spherical Mirrors are available in diameters ranging from 25.4 to 152.4mm for ease of system integration. These mirrors collect and focus light without introducing chromatic aberration. Specifications General Type: Spherical Mirror Physical & Mechanical Properties Diameter (mm): 76.20 +1.0/-0 Diameter (inches): 3.0 Diameter Tolerance (inches): +0.04/-0 Edge Thickness ET (mm): 12.70 Edge Thickness ET (inches): 0.50 Edge Thickness Tolerance (%): +0.0/-15 Back Surface: Ground Optical Properties Effective Focal Length EFL (mm): 457.20 Effective Focal Length EFL (inches): 18.00 Focal Length Tolerance (%): ±2 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More BOROFLOAT Aperture (f/#): f/6 Coating: Dielectric Mirror (320-450nm) Coating Type: Dielectric Coating Specification: R avg >98% @ 340 – 488nm (0°, All Polarizations) R avg >98% @ 320 – 450nm (45°, All Polarizations) R avg >99% @ 320 – 450nm (45°, S-Polarization) Wavelength Range (nm): 320 – 450 Surface Accuracy: λ/4 Surface Quality: 60-40 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 0.5 J/cm 2 @ 355nm, 20ns, 20Hz Radius of Curvature (mm): 914.40 Regulatory Compliance Certificate of Conformance: View ×