Protected Gold Mirrors

Featured Product from Daheng New Epoch Technology, Inc.

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These are precision flat mirrors with a metallic gold coating. The gold layer is protected both underneath and above with dielectric layers which ensures good adhesion to the substrate and allows cleaning by normal laboratory methods. These mirrors have very high reflectivity from 0.65 microns through to the infrared spectrum.
 
•Material:                                BK7, fine annealed.
•Diameter Tolerance:              +0.0/-0.15
•Thickness:                             4±0.1
•Parallelism:                            <3‘
•Flatness:                                λ/4 at 633nm
•Surface Quality:                     60-40 scratch-dig
•Back Surface:                         fine ground
•Clear Aperture:                       90% Diameter
•Average Reflectance:             Rave>95% 0.65-2 microns
                                                  Rave>98% at 2-12μm