Materail : BK7

Dimension Tolerance: +0/-0.2mm              

Angle Tolerance: ±3 arc minutes

Surface Quality :60-40
Flatness: < λ/4 at 632.8nm
Clear Aperture:>90%
Bevel: 0.25mm*45degree
Coating:Specified by customer

 

The price changes according to different materials, different specs of products, as well as different quantity.
For exact price of the products that you need, please contact with our sales, you can send your specs or drawings,we will quote you the most competitive price as well as the good quality.