Specifications include, but are not limited to: HSRL Telescope Primary Mirror Specifications 1. Diameter: 406 mm+/-1mm 2. Clear aperture: >386 mm Outer CA, 3. Radius of Curvature: 1600 +/-2.5 mm 4. Conic constant: -0.952 5. Central hole diameter: 59.3 mm +/-0.5 mm 6. Central hole concentricity: within 0.3 mm 7. Scratch-dig: 60-40 8. Substrate: Fused Silica or equivalent 9. Surface figure 1-wave (peak to valley 633 nm) 10. All non-optical surfaces to be fine ground 11. Lightweighted, the mechanical drawing is provided Coating Protected Aluminum or Dual wavelength dielectric coating (preferred) to be used at 532 nm & 1064nm simultaneously, similar to K13 coating by Thorlabs Secondary mirror: UW provides the substrate as an uncoated plano-convex lens (CVi laser optics Part# PLCX-25.4-77.3-UV). The secondary mirror is to be tested and qualified then coated with the same coating as primary mirror. The secondary and primary mirror are to be tested as a system prior to delivery.