china optical wedge prism

We supply optical wedge prism.
Specification of our wedge prism as follow:
*Material:BK7 or(JGS1 JGS2 JGS3)
*Dimension Tolerance:+/-0.20mm to +0.01/-0.01mm
*Thickness Tolerance:+/-0.20mm to +/-0.005mm
*Surface Quality:80-50 to 10-5 Scratch/Dig
*Surface Flatness: at 632.8nm lambda to lambda /20 per 25mm
*Clear Aperture:80% -- 100%
*Angle Tolerance:3-5 minutes to 3 second 
*Chamfer:0.3+/-0.20mm *45degree
*Coating Optional