Mirrors Metallic and dielectric coated mirrors come with a reflecting surface with a coating of silver, gold, aluminium on glass. We provide concave and convex mirror which are flat in nature.
The specifications of high precision BK7 mirror substrates include-
It uses BK7 grade A optical glass material.
Flatness is λ /10 at 633nm.
Parallelism is less than 3arc minutes. It has a 10/5 scratch dig surface quality.
Rear surface is fine ground in nature.
Diameter tolerance is +0.0/-0.1mm and the thickness is ±0.2mm.
It is not coated.
The specifications of Standard BK7 mirror substrates include-
It uses BK7 grade A optical glass material.
Flatness is λ /5 at 633nm.
Parallelism is less than 3arc minutes. It has a 40/20 scratch dig surface quality.
Rear surface is fine ground in nature.
Diameter tolerance is +0.0/-0.1mm, thickness is ±0.2mm and Bevel is 0.2mm x 450.
It is not coated.