Our factory's standard convex spherical mirrors exhibit a surface flatness equivalent to λ/4. We adhere to a standard diameter tolerance of +0, -0.1mm, while guaranteeing a clear aperture that is 90% of the diameter. The surface quality of our products is classified as 40-20 scratch dig.

Surface flatness: λ/4
Surface quality: 40-20
Diameter: +0, -0.1mm
Clear aperture: >90% diameter