Roof Prisms

Materials：All kinds of high quality and environment-protection optical glass(N-BK7,N-BAK4,N-LAK8,N-SF15,etc.).

Monthly Capacity：150,000pcs.

Production Capacity Sheet
Dimension Tolerance        ±0.01～0.1mm   
Angle Tolerance                1″～5″
Parallelism                         30″～1′
Surface Quality                  60/40～20/10
Aperture                            N=λ/6～λ
Irregularity                        △N=0.1～0.5