Aluminium Concave Spherical Mirror 

Aluminium Concave Spherical Mirror      Changchun Ruiqi has a wide selection of concave spherical mirror with metallic or dielectric coatings that together span the 250 nm - 1000nm spectral range, with focal lengths from 9.5 mm to 500 mm. Our mirrors with metallic coatings are offered in UV enhanced aluminum (250 - 450 nm), protected aluminum (450 nm - 700nm), protected silver (380 nm - 700nm), protected gold (400 nm - 700 nm),  Our mirrors with dielectric coatings offer >99% average reflectivity in the 350 - 400 nm, 400 - 750 nm, 750 - 1100 nm spectral ranges.   Specifications Material BK7/H-K9L Dimension  75mm circular or square  Dimension Tolerance +0/-0.1mm Parallelism <3' Surface Quality 60/40 Flatness lambda/4 per 25nm at 632.8nm…