Protective Silver and Protective Gold Mirrors

Protected Silver: Ravg>95% @450-12000nm. Gold is the most  efficient reflective coating throughout the entire IR range. Gold coatings  provide a surface that may be easily cleaned while providing 98% average  reflectance throughout the IR region.

Material: BK7 grade A optical glass
Dimension Tolerance: +/-0.2mm
Clear  Aperture: >85% of diameter
Parallelism: < 1 arc minutes
Surface  Quality: 60-40 S/D
Flatness: λ/4@632.8nm
Coating: R> 90% on  S1
Bevel: 0.25mmx45deg