Optical BK7 glass wedge prism from China

Specification of our wedge prism as follow:

*Material:BK7 or(JGS1 JGS2 JGS3)
*Glass Qualityz:nd+/-0.001~+/-0.0001
                     vd +/-0.8%~+/-0.1%
*Dimension Tolerance:+/-0.20mm~+0.01/-0.01mm
*Thickness Tolerance:+/-0.20mm~+/-0.005mm
*Surface Quality:80-50~10-5
*Surface Flatness: at 632.8nm lambda~ lambda /20 per 25mm
*Clear Aperture 80% ~100%
*Angle Tolerance  3-5 minutes~3 second 
*Chamfer 0.3+/-0.20mm x45degree
*No Chamfer
*Coating Optional

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